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LD1117 series
Low drop fixed and adjustable positive voltage regulators
Feature summary

Low dropout voltage (1V TYP.) 2.85V Device performances are suitable for SCSI-2 active termination Output current up to 800 mA Fixed output voltage of: 1.2V, 1.8V, 2.5V, 2.85V, 3.0V, 3.3V, 5.0V Adjustable version availability (Vrel=1.25V) Internal current and thermal limit Available in 1% (at 25C) and 2% in full temperature range Supply voltage rejection: 75dB (typ.)
SOT-223 SO-8 DPAK TO-220
Description
The LD1117 is a LOW DROP Voltage Regulator able to provide up to 800mA of Output Current, available even in adjustable version (Vref=1.25V). Concerning fixed versions, are offered the following Output Voltages: 1.2V,1.8V,2.5V,2.85V, 3.0V 3.3V and 5.0V. The 2.85V type is ideal for SCSI-2 lines active termination. The device is supplied in: SOT-223, DPAK, SO-8 and TO-220.
The SOT-223 and DPAK surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN pass transistor. In fact in this case, unlike than PNP one, the Quiescent Current flows mostly into the load. Only a very common 10F minimum capacitor is needed for stability. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within 1% at 25C. The ADJUSTABLE LD1117 is pin to pin compatible with the other standard. Adjustable voltage regulators maintaining the better performances in terms of Drop and Tolerance.
Block diagram
December 2006
Rev. 20
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38
LD1117 series
Contents
1 2 3 4 5 6 7 8 9 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 LD1117 Adjustable: Application note . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
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LD1117 series
Pin configuration
1
Figure 1.
Pin configuration
Pin connections (top view)
SOT-223
SO-8
DPAK
TO-220
Note:
The TAB is connected to the VOUT.
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Maximum ratings
LD1117 series
2
Table 1.
Symbol VIN PTOT TSTG TOP
Maximum ratings
Absolute maximum ratings
Parameter DC Input Voltage Power Dissipation Storage Temperature Range for C Version Operating Junction Temperature Range for standard Version 0 to +150 C Value 15 12 -40 to +150 -40 to +150 Unit V W C C
Table 2.
Symbol RthJC RthJA
Thermal Data
Parameter Thermal Resistance Junction-case Thermal Resistance Junction-ambient SOT-223 15 SO-8 20 DPAK 8 TO-220 3 50 Unit C/W C/W
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LD1117 series
Schematic application
3
Figure 2.
Schematic application
Application circuit (for 1.2V)
Figure 3.
Application circuit (for other fixed output voltages)
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Electrical characteristics
LD1117 series
4
Table 3.
Electrical characteristics
Electrical characteristics of LD1117#12 (refer to the test circuits, TJ = 0 to 125C, CO = 10 F, R = 120 between GND and OUT pins, unless otherwise specified).
Parameter Output voltage Reference voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Adjustment pin current Adjustment pin current change Minimum load current Output current Output noise (%VO) Supply voltage rejection Vin 15 V Vin - VO = 1.4 to 10 V IO = 10 to 800 mA Vin = 15 V Vin - VO = 5 V, TJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin - VO = 3 V, Vripple = 1 VPP IO = 100 mA Vd Dropout voltage IO = 500 mA IO = 800 mA Thermal regulation Ta = 25C, 30ms Pulse 60 800 60 1 2 950 0.003 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V 1000 hrs, TJ = 125C Test Vin = 3.2 V, IO = 10 mA, TJ = 25C IO = 10 to 800 mA Vin - VO= 1.4 to 10 V Vin - VO = 1.5 to 13.75 V, IO = 10 mA Vin - VO = 3 V, IO = 10 to 800 mA Min. 1.188 1.140 Typ. 1.20 1.20 0.035 0.1 0.5 0.3 15 120 5 5 1300 Max. 1.212 1.260 0.2 0.4 Unit V V % % % % V A A mA mA % dB
Symbol VO VO VO VO VO VO Vin Iadj Iadj IO(min) IO eN SVR
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LD1117 series Table 4.
Symbol VO VO VO VO VO VO Vin Id IO eN SVR
Electrical characteristics
Electrical characteristics of LD1117#18 (refer to the test circuits, TJ = 0 to 125C, CO = 10 F, unless otherwise specified).
Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125C IO = 100 mA Vin 8 V Vin = 6.8 V, TJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin = 5.5 V, Vripple = 1 VPP IO = 100 mA 60 800 5 950 100 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V Test Vin = 3.8 V, IO = 10 mA, TJ = 25C IO = 0 to 800 mA, Vin = 3.3 to 8 V Vin = 3.3 to 8 V, IO = 0 mA Vin = 3.3 V, IO = 0 to 800 mA Min. 1.78 1.76 1 1 0.5 0.3 10 10 1300 Typ. 1.8 Max. 1.82 1.84 6 10 Unit V V mV mV % % V mA mA V dB
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
Table 5.
Symbol VO VO VO VO VO VO Vin Id IO eN SVR
Electrical characteristics of LD1117#25 (refer to the test circuits, TJ = 0 to 125C, CO = 10 F, unless otherwise specified).
Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125C IO = 100 mA Vin 10 V Vin = 7.5 VTJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin = 5.5 V, Vripple = 1 VPP IO = 100 mA 60 800 5 950 100 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W 7/38 V Test Vin = 4.5 V, IO = 10 mA, TJ = 25C IO = 0 to 800 mA, Vin = 3.9 to 10 V Vin = 3.9 to 10 V, IO = 0 mA Vin = 3.9 V, IO = 0 to 800 mA Min. 2.475 2.45 1 1 0.5 0.3 15 10 1300 Typ. 2.5 Max. 2.525 2.55 6 10 Unit V V mV mV % % V mA mA V dB
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
Electrical characteristics
LD1117 series
Table 6.
Symbol VO VO VO VO VO VO Vin Id IO eN SVR
Electrical characteristics of LD1117#28 (refer to the test circuits, TJ = 0 to 125C, CO = 10 F, unless otherwise specified).
Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125C IO = 100 mA Vin 10 V Vin = 7.85 VTJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin = 5.85 V, Vripple = 1 VPP IO = 100 mA 60 800 5 950 100 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V Test Vin = 4.85 V, IO = 10 mA, TJ = 25C IO = 0 to 800 mA, Vin = 4.25 to 10 V Vin = 4.25 to 10 V, IO = 0 mA Vin = 4.25 V, IO = 0 to 800 mA Min. 2.82 2.79 1 1 0.5 0.3 15 10 1300 Typ. 2.85 Max. 2.88 2.91 6 10 Unit V V mV mV % % V mA mA V dB
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
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LD1117 series
Electrical characteristics
Table 7.
Symbol VO VO VO VO VO VO Vin Id IO eN SVR
Electrical characteristics of LD1117#30 (refer to the test circuits, TJ = 0 to 125C, CO = 10 F, unless otherwise specified).
Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125C IO = 100 mA Vin 12 V Vin = 8 V, TJ = 25C B =10Hz to 10KHz,TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin = 6 V, Vripple = 1 VPP IO = 100 mA 60 800 5 950 100 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V Test Vin = 5 V, IO = 10 mA, TJ = 25C IO = 0 to 800 mA, Vin = 4.5 to 10 V Vin = 4.5 to 12 V, IO = 0 mA Vin = 4.5 V, IO = 0 to 800 mA Min. 2.97 2.94 1 1 0.5 0.3 15 10 1300 Typ. 3 Max. 3.03 3.06 6 10 Unit V V mV mV % % V mA mA V dB
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
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Electrical characteristics
LD1117 series
Table 8.
Symbol VO VO VO VO VO VO Vin Id IO eN SVR
Electrical characteristics of LD1117#33 (refer to the test circuits, TJ = 0 to 125C, CO = 10 F, unless otherwise specified).
Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125C IO = 100 mA Vin 15 V Vin = 8.3 V, TJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin = 6.3 V, Vripple = 1 VPP IO = 100 mA 60 800 5 950 100 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V Test Vin = 5.3 V, IO = 10 mA, TJ = 25C IO = 0 to 800 mA, Vin = 4.75 to 10 V Vin = 4.75 to 15 V, IO = 0 mA Vin = 4.75 V, IO = 0 to 800 mA Min. 3.267 3.235 1 1 0.5 0.3 15 10 1300 Typ. 3.3 Max. 3.333 3.365 6 10 Unit V V mV mV % % V mA mA V dB
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
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LD1117 series
Electrical characteristics
Table 9.
Symbol VO VO VO VO VO VO Vin Id IO eN SVR
Electrical characteristics of LD1117#50 (refer to the test circuits, TJ = 0 to 125C, CO = 10 F, unless otherwise specified).
Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125C IO = 100 mA Vin 15 V Vin = 10 V, TJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin = 8 V, Vripple = 1 VPP IO = 100 mA 60 800 5 950 100 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V Test Vin = 7 V, IO = 10 mA, TJ = 25C IO = 0 to 800 mA, Vin = 6.5 to 15 V Vin = 6.5 to 15 V, IO = 0 mA Vin = 6.5 V, IO = 0 to 800 mA Min. 4.95 4.9 1 1 0.5 0.3 15 10 1300 Typ. 5 Max. 5.05 5.1 10 15 Unit V V mV mV % % V mA mA V dB
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
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Electrical characteristics
LD1117 series
Table 10.
Symbol Vref Vref VO VO VO VO Vin Iadj Iadj IO(min) IO eN SVR
Electrical characteristics of LD1117 (Adjustable) (refer to the test circuits, TJ = 0 to 125C, CO = 10 F, unless otherwise specified).
Parameter Reference voltage Reference voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Adjustment pin current Vin 15 V 60 1 2 800 950 0.003 60 75 1 1.05 1.10 0.01 1.1 1.15 1.2 0.1 %/W V 1000 hrs, TJ = 125C Test Vin - VO = 2 V, IO = 10 mA, TJ = 25C Min. 1.238 Typ. 1.25 Max. 1.262 1.275 0.035 0.1 0.5 0.3 15 120 5 5 1300 0.2 0.4 Unit V V % % % % V A A mA mA % dB
IO = 10 to 800 mA, Vin - VO = 1.4 to 10 V 1.225 Vin - VO = 1.5 to 13.75 V, IO = 10 mA Vin - VO = 3 V, IO = 10 to 800 mA
Adjustment pin current change Vin - VO = 1.4 to 10 V, IO = 10 to 800 mA Minimum load current Output current Output noise (%VO) Supply voltage rejection Vin = 15 V Vin - VO = 5 V, TJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin - VO = 3 V, Vripple = 1 VPP IO = 100 mA
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
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LD1117 series
Electrical characteristics
Table 11.
Electrical characteristics of LD1117#12C (refer to the test circuits, TJ = 0 to 125C, CO = 10 F, R = 120 between GND and OUT pins, unless otherwise specified).
Parameter Reference voltage Reference voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Adjustment pin current Adjustment pin current change Minimum load current Output current Output noise (%VO) Supply voltage rejection Vin 15 V Vin - VO = 1.4 to 10 V IO = 10 to 800 mA Vin = 15 V Vin - VO = 5 V, TJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin - VO = 3 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125C 60 800 60 1 2 950 0.003 75 1 1.05 1.10 0.01 1.1 1.2 1.3 0.1 %/W V 1000 hrs, TJ = 125C Test Vin - VO= 2V, IO = 10 mA, TJ = 25C IO = 10 to 800 mA, Vin - VO= 1.4 to 10 V Vin - VO = 1.5 to 13.75 V, IO = 10 mA Vin - VO = 3 V, IO = 10 to 800 mA 0.5 0.3 15 120 5 5 1300 Min. 1.176 1.120 Typ. 1.20 1.20 Max. 1.224 1.280 1 1 Unit V V % % % % V A A mA mA % dB
Symbol Vref Vref VO VO VO VO Vin Iadj Iadj IO(min) IO eN SVR
Vd
Dropout voltage
IO = 500 mA, TJ = 0 to 125C IO = 800 mA, TJ = 0 to 125C
Thermal regulation
Ta = 25C, 30ms Pulse
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Electrical characteristics
LD1117 series
Table 12.
Symbol VO VO VO VO VO VO Vin Id IO eN SVR
Electrical characteristics of LD1117#18C (refer to the test circuits, TJ = -40 to 125C, CO = 10 F, unless otherwise specified).
Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125C IO = 100 mA Vin 8 V Vin = 6.8 VTJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin = 5.5 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125C 60 800 5 950 100 75 1 1.05 1.10 1.1 1.15 1.2 1.1 1.2 1.3 0.01 0.1 %/W V V Test Vin = 3.8 V, IO = 10 mA, TJ = 25C IO = 0 to 800 mA, Vin = 3.9 to 10 V Vin = 3.3 to 8 V, IO = 0 mA Vin = 3.3 V, IO = 0 to 800 mA Min. 1.76 1.73 1 1 0.5 0.3 10 10 1300 Typ. 1.8 Max. 1.84 1.87 30 30 Unit V V mV mV % % V mA mA V dB
Vd
Dropout voltage
IO = 500 mA, TJ = 0 to 125C IO = 800 mA, TJ = 0 to 125C IO = 100 mA
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
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LD1117 series
Electrical characteristics
Table 13.
Symbol VO VO VO VO VO VO Vin Id IO eN SVR
Electrical characteristics of LD1117#25C (refer to the test circuits, TJ = -40 to 125C, CO = 10 F, unless otherwise specified).
Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125C IO = 100 mA Vin 10 V Vin = 7.5 VTJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin = 5.5 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125C 60 800 5 950 100 75 1 1.05 1.10 1.1 1.15 1.2 1.1 1.2 1.3 0.01 0.1 %/W V V Test Vin = 4.5 V, IO = 10 mA, TJ = 25C IO = 0 to 800 mA, Vin = 3.9 to 10 V Vin = 3.9 to 10 V, IO = 0 mA Vin = 3.9 V, IO = 0 to 800 mA Min. 2.45 2.4 1 1 0.5 0.3 15 10 1300 Typ. 2.5 Max. 2.55 2.6 30 30 Unit V V mV mV % % V mA mA V dB
Vd
Dropout voltage
IO = 500 mA, TJ = 0 to 125C IO = 800 mA, TJ = 0 to 125C IO = 100 mA
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
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Electrical characteristics
LD1117 series
Table 14.
Symbol VO VO VO VO VO VO Vin Id IO eN SVR
Electrical characteristics of LD1117#30C (refer to the test circuits, TJ = -40 to 125C, CO = 10 F, unless otherwise specified).
Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125C IO = 100 mA Vin 12 V Vin = 8 V, TJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin = 6 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125C 60 800 5 950 100 75 1 1.05 1.10 1.1 1.15 1.2 1.1 1.2 1.3 0.01 0.1 %/W V V Test Vin = 5 V, IO = 10 mA, TJ = 25C IO = 0 to 800 mA, Vin = 4.5 to 10 V Vin = 4.5 to 12 V, IO = 0 mA Vin = 4.5 V, IO = 0 to 800 mA Min. 2.94 2.88 1 1 0.5 0.3 15 10 1300 Typ. 3 Max. 3.06 3.12 30 30 Unit V V mV mV % % V mA mA V dB
Vd
Dropout voltage
IO = 500 mA, TJ = 0 to 125C IO = 800 mA, TJ = 0 to 125C IO = 100 mA
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
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LD1117 series
Electrical characteristics
Table 15.
Symbol VO VO VO VO VO VO Vin Id IO eN SVR
Electrical characteristics of LD1117#33C (refer to the test circuits, TJ = -40 to 125C, CO = 10 F, unless otherwise specified).
Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125C IO = 100 mA Vin 15 V Vin = 8.3 V, TJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin = 6.3 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125C 60 800 5 950 100 75 1 1.05 1.10 1.1 1.15 1.2 1.1 1.2 1.3 0.01 0.1 %/W V V Test Vin = 5.3 V, IO = 10 mA, TJ = 25C IO = 0 to 800 mA, Vin = 4.75 to 10 V Vin = 4.75 to 15 V, IO = 0 mA Vin = 4.75 V, IO = 0 to 800 mA Min. 3.24 3.16 1 1 0.5 0.3 15 10 1300 Typ. 3.3 Max. 3.36 3.44 30 30 Unit V V mV mV % % V mA mA V dB
Vd
Dropout voltage
IO = 500 mA, TJ = 0 to 125C IO = 800 mA, TJ = 0 to 125C IO = 100 mA
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
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Electrical characteristics
LD1117 series
Table 16.
Symbol VO VO VO VO VO VO Vin Id IO eN SVR
Electrical characteristics of LD1117#50C (refer to the test circuits, TJ = -40 to 125C, CO = 10 F, unless otherwise specified).
Parameter Output voltage Output voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Quiescent current Output current Output noise voltage Supply voltage rejection 1000 hrs, TJ = 125C IO = 100 mA Vin 15 V Vin = 10 V, TJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin = 8 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125C 60 800 5 950 100 75 1 1.05 1.10 1.1 1.15 1.2 1.1 1.2 1.3 0.01 0.1 %/W V V Test Vin = 7 V, IO = 10 mA, TJ = 25C IO = 0 to 800 mA, Vin = 6.5 to 15 V Vin = 6.5 to 15 V, IO = 0 mA Vin = 6.5 V, IO = 0 to 800 mA Min. 4.9 4.8 1 1 0.5 0.3 15 10 1300 Typ. 5 Max. 5.1 5.2 50 50 Unit V V mV mV % % V mA mA V dB
Vd
Dropout voltage
IO = 500 mA, TJ = 0 to 125C IO = 800 mA, TJ = 0 to 125C IO = 100 mA
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
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LD1117 series Table 17.
Symbol Vref Vref VO VO VO VO Vin Iadj Iadj IO(min) IO eN SVR
Electrical characteristics
Electrical characteristics of LD1117C (Adjustable) (refer to the test circuits, TJ = -40 to 125C, CO = 10 F, unless otherwise specified).
Parameter Reference voltage Reference voltage Line regulation Load regulation Temperature stability Long term stability Operating input voltage Adjustment pin current Vin 15 V 60 1 2 800 950 0.003 60 75 1 1.05 1.10 1.1 1.15 1.2 1.1 1.2 1.3 0.01 0.1 %/W V V 1000 hrs, TJ = 125C Test Vin - VO = 2 V, IO = 10 mA, TJ = 25C IO = 10 to 800 mA, Vin - VO= 1.4 to 10 V Vin - VO = 1.5 to 13.75 V, IO = 10 mA Vin - VO = 3 V, IO = 10 to 800 mA 0.5 0.3 15 120 10 5 1300 Min. 1.225 1.2 Typ. 1.25 Max. 1.275 1.3 1 1 Unit V V % % % % V A A mA mA % dB
Adjustment pin current change Vin - VO = 1.4 to 10 V, IO = 10 to 800 mA Minimum load current Output current Output noise (%VO) Supply voltage rejection Vin = 15 V Vin - VO = 5 V, TJ = 25C B =10Hz to 10KHz, TJ = 25C IO = 40 mA, f = 120Hz, TJ = 25C Vin - VO = 3 V, Vripple = 1 VPP IO = 100 mA, TJ = 0 to 125C
Vd
Dropout voltage
IO = 500 mA, TJ = 0 to 125C IO = 800 mA, TJ = 0 to 125C IO = 100 mA
Vd
Dropout voltage
IO = 500 mA IO = 800 mA
Thermal regulation
Ta = 25C, 30ms Pulse
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Typical application
LD1117 series
5
Figure 4.
Typical application
Negative supply
Figure 5.
Active terminator for SCSI-2 BUS
Figure 6.
Circuit for increasing output voltage
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LD1117 series
Typical application
Figure 7.
Voltage Regulator With Reference
Figure 8.
Battery backed-up regulated supply
21/38
Typical application Figure 9. Post-regulated dual supply
LD1117 series
22/38
LD1117 series
LD1117 Adjustable: Application note
6
LD1117 Adjustable: Application note
The LD1117 Adjustable has a thermal stabilized 1.250.012V reference voltage between the OUT and ADJ pins. IADJ is 60A typ. (120A max.) and IADJ is 1A typ. (5A max.). R1 is normally fixed to 120W. From figure 10 we obtain: VOUT = VREF + R2 (IADJ +IR1) = VREF + R2 (IADJ +VREF /R1) = VREF (1 + R2 / R1) + R2 x IADJ. In normal application R2 value is in the range of few kohm, so the R2 x IADJ product could not be considered in the VOUT calculation; then the above expression becomes: VOUT = VREF (1 + R2 / R1). In order to have the better load regulation it is important to realize a good Kelvin connection of R1 and R2 resistors. In particular R1 connection must be realized very close to OUT and ADJ pin, while R2 ground connection must be placed as near as possible to the negative Load pin. Ripple rejection can be improved by introducing a 10F electrolytic capacitor placed in parallel to the R2 resistor (see Fig. 11).
Figure 10. Adjustable output voltage application
Figure 11. Adjustable output voltage application with improved ripple rejection
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Package mechanical data
LD1117 series
7
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
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LD1117 series
Package mechanical data
SOT-223 MECHANICAL DATA
mm. DIM. MIN. A A1 B B1 c D e e1 E H V 3.3 6.7 0.02 0.6 2.9 0.24 6.3 0.7 3 0.26 6.5 2.3 4.6 3.5 7 3.7 7.3 10 129.9 263.8 TYP MAX. 1.8 0.1 0.85 3.15 0.35 6.7 0.8 23.6 114.2 9.4 248.0 27.6 118.1 10.2 255.9 90.6 181.1 137.8 275.7 145.7 287.5 10 MIN. TYP. MAX. 70.9 3.9 33.5 124.0 13.8 263.8 mils
0046067/H
25/38
Package mechanical data
LD1117 series
SO-8 MECHANICAL DATA
DIM. A A1 A2 B C D E e H h L k ddd 0.1 5.80 0.25 0.40 mm. MIN. 1.35 0.10 1.10 0.33 0.19 4.80 3.80 1.27 6.20 0.50 1.27 0.228 0.010 0.016 TYP MAX. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 MIN. 0.053 0.04 0.043 0.013 0.007 0.189 0.150 0.050 0.244 0.020 0.050 inch TYP. MAX. 0.069 0.010 0.065 0.020 0.010 0.197 0.157
8 (max.)
0.04
0016023/C
26/38
LD1117 series
Package mechanical data
Figure 12. DRAWING DIMENSION DPAK (TYPE STD-ST)
0068772/G
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Package mechanical data
LD1117 series
Figure 13. DRAWING DIMENSION DPAK (TYPE FUJITSU-SUBCON.)
0068772/G
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LD1117 series
Package mechanical data
Figure 14. DRAWING DIMENSION DPAK (TYPE IDS-SUBCON.)
0068772/G
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Package mechanical data
LD1117 series
Table 18.
DPAK MECHANICAL DATA
TYPE STD-ST TYPE FUJITSU-SUBCON. mm. MAX. 2.40 1.10 0.23 0.90 5.40 0.60 0.60 6.20 5.10 6.40 4.70 2.28 4.40 9.35 1.00 2.80 0.80 0.60 0.20 0 8 0 1.00 1.03 0.70 0.40 8 0 1.13 0.90 4.60 10.10 9.90 1.40 10.30 1.60 2.23 6.60 MIN. 2.25 0.96 0 0.76 5.28 0.46 0.46 6.05 5.27 6.55 6.60 4.77 2.28 2.33 4.51 9.40 0.90 2.50 0.89 0.64 0.20 8 2.65 1.27 1.02 TYP. 2.30 MAX. 2.35 1.06 0.10 0.86 5.38 0.56 0.56 6.15 5.47 6.65 6.35 4.70 2.28 4.61 10.42 MIN. 2.19 0.89 0.03 0.64 5.21 0.46 0.46 5.97 5.20 6.73 TYPE IDS-SUBCON mm. TYP. MAX. 2.38 1.14 0.23 0.88 5.46 0.58 0.58 6.22
DIM. MIN. A A1 A2 b b4 c c2 D D1 E E1 e e1 H L L1 L2 L4 R V2 2.20 0.90 0.03 0.64 5.20 0.45 0.48 6.00
mm. TYP.
Note:
The DPAK package coming from the two subcontractors (Fujitsu and IDS) are fully compatible with the ST's package suggested footprint.
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LD1117 series
Package mechanical data
Figure 15. DPAK FOOTPRINT RECOMMENDED DATA
Table 19.
FOOTPRINT DATA
VALUES mm. A B C D E F G 6.70 6.70 1.8 3.0 1.60 2.30 2.30 inch. 0.264 0.64 0.070 0.118 0.063 0.091 0.091
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Package mechanical data
LD1117 series
TO-220 MECHANICAL DATA
DIM. A C D D1 E F F1 F2 G G1 H2 L2 L4 L5 L6 L7 L9 DIA. 13.0 2.65 15.25 6.2 3.5 3.75 0.49 0.61 1.14 1.14 4.95 2.4 10.0 16.4 14.0 2.95 15.75 6.6 3.93 3.85 0.511 0.104 0.600 0.244 0.137 0.147 mm. MIN. 4.40 1.23 2.40 1.27 0.70 0.88 1.70 1.70 5.15 2.7 10.40 0.019 0.024 0.044 0.044 0.194 0.094 0.393 0.645 0.551 0.116 0.620 0.260 0.154 0.151 TYP MAX. 4.60 1.32 2.72 MIN. 0.173 0.048 0.094 0.050 0.027 0.034 0.067 0.067 0.203 0.106 0.409 inch TYP. MAX. 0.181 0.051 0.107
P011C
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LD1117 series
Package mechanical data
Tape & Reel SOT223 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 6.73 7.32 1.78 3.9 7.9 4.0 8.0 6.83 7.42 12.8 20.2 60 14.4 6.93 7.52 2 4.1 8.1 0.265 0.288 0.070 0.153 0.311 0.157 0.315 0.269 0.292 13.0 TYP MAX. 330 13.2 0.504 0.795 2.362 0.567 0.273 0.296 0.078 0.161 0.319 0.512 MIN. TYP. MAX. 12.992 0.519 inch
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Package mechanical data
LD1117 series
Tape & Reel SO-8 MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 8.1 5.5 2.1 3.9 7.9 12.8 20.2 60 22.4 8.5 5.9 2.3 4.1 8.1 0.319 0.216 0.082 0.153 0.311 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.335 0.232 0.090 0.161 0.319 MIN. TYP. MAX. 12.992 0.519 inch
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LD1117 series
Package mechanical data
Tape & Reel DPAK-PPAK MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 6.80 10.40 2.55 3.9 7.9 6.90 10.50 2.65 4.0 8.0 12.8 20.2 60 22.4 7.00 10.60 2.75 4.1 8.1 0.268 0.409 0.100 0.153 0.311 0.272 0.413 0.104 0.157 0.315 13.0 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.2.76 0.417 0.105 0.161 0.319 0.512 MIN. TYP. MAX. 12.992 0.519 inch
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Order code
LD1117 series
8
Table 20.
Order code
Order code
Part numbers SOT-223 LD1117S12TR SO-8 LD1117D12TR (*) DPAK LD1117DT12 (*) DPAK (T&R) LD1117DT12TR TO-220 LD1117V12 (*) LD1117V12C (*) LD1117DT18TR LD1117V18 Output voltage 1.2 V 1.2 V 1.8 V 1.8 V 2.5 V 2.5 V 2.85 V 3V LD1117DT33 LD1117DT33C LD1117DT50 LD1117DT50C LD1117DT LD1117DTC (*) LD1117DT33TR LD1117DT33CTR LD1117DT50TR LD1117DT50CTR LD1117DTTR LD1117DTC-R LD1117V LD1117VC (*) LD1117V33 LD1117V33C LD1117V50 3.3 V 3.3 V 5V 5V ADJ FROM 1.25 TO 15V ADJ FROM 1.25 TO 15V
LD1117S12CTR (*) LD1117D12CTR (*) LD1117DT12C (*) LD1117S18TR LD1117D18TR (*) LD1117DT18 LD1117DT18C LD1117DT25 LD1117DT25C
LD1117S18CTR (*) LD1117D18CTR (*) LD1117S25TR LD1117S25CTR LD1117S28TR LD1117S30TR LD1117S33TR LD1117S33CTR LD1117S50TR LD1117S50CTR LD1117STR LD1117SC-R LD1117D25TR (*) LD1117D25CTR (*) LD1117D28TR (*) LD1117D30TR (*) LD1117D33TR LD1117D33CTR LD1117D50TR LD1117D50CTR (*) LD1117DTR (*) LD1117DC-R (*)
LD1117DT18CTR LD1117V18C (*) LD1117DT25TR LD1117DT25CTR LD1117DT28TR LD1117V25 LD1117V25C
(*) Available on request.
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LD1117 series
Revision history
9
Table 21.
Date
Revision history
Document revision history
Revision 15 16 17 18 19 20 Changes Add new Part Number #12C; Typing Error: Note on table 2. Add Vref Reference Voltage on Table 12. The DPAK Mechanical Data has been updated. The TO220FM Package has been removed. The Top on Table 2 has been updated. DPAK mechanical data has been updated and add footprint data.
22-Sep-2004 25-Oct-2004 18-Jul-2005 25-Nov-2005 14-Dec-2005 06-Dec-2006
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LD1117 series
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