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1A LOW DROPOUT POSITIVE REGULATOR
DESCRIPTION & FEATURES AEo1/4IOa
The FH1117 series of positive adjustable and fixed regulators is designed to provide 1A for applications requiring high efficiency. All internal circuitry is designed to operated down to 800mV input to output differential and the dropout voltage is fully specified as a function of load current. The FH1117 offers current limiting and thermal protection. The on chip trimming adjusts the reference voltage accuracy to 1%. Output current of 1A typical Three-terminal adjustable or fixed 1.5V,1.8V, 2.5V, 2.85V, 3.3V, 5.0V outputs Low dropout of typical 800mV Thermal protection built in Typical 0.015% line regulation Typical 0.01% load regulation Fast transient response acAE/ AEIO/OuAE oOu1/4AEaEuIaEe INEe IoAc1/2OU iEUIIO| cAOO/a LCD IOE3/4AE/ DVD EOAE*A/ /O OO/Ou IO/Ou aIO AUOAE aIO 0.015(c) 0.01(c) INiaO FH1117 IAEyEE/IcNOu AcA/ AU cA*NiOEOOA/E FH1117 uAE* 3/4Ei 1% cA*Ee1/4AE EIa(c)I OEOA A/1/4 OU E | (c)aIOOE/AE 800mA EaEeu oI /OuI1/4 cN AU 1A *O
EyEE/oIEao
EaocA/IO
1A(c) 1.5V,1.8V, 2.5V, 2.85V, 3.3V, 5.0V Eao 800mV(c)
Applications O|A
PC Motherboard LCD Monitor DVD-Video Player NIC / Switch Telecom Equipment High Efficiency Linear Regulator Printer and other Peripheral Equipment Battery Charger
1A INiEyEIAE/
Package *axAaI
FH1117
Temperature Range IAE* Part Number uAE*IA FH1117SADJ FH1117S15 FH1117S18 FH1117S25 FH1117S285 FH1117S33 FH1117S5 Packing Type ux AaI Tape Tape Tape Tape Tape Tape Tape
SOT-223
0C ~ 125C
FH1117 S 18 T
Type uAE*IA Package *axIE1/2 S: SOT-223 Packing Type uxIE1/2 Voltage
ADJ 15 18 25 285 33 5 ADJ 1.5V 1.8V 2.5V 2.85V 3.3V *2005 AeU 5V
T: Tape ao B: Bulk Ex
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BLOCK DIAGRAM|AUoI1/4(c)
MAXIMUM RATINGS (Ta=25ae ) xioO
Characteristic IOOIEy Input Voltage EaEecN Operating Junction Temperature1/2aIA Storage Temperature RangeaeIAE Lead Temperature 1/2OIAE (soldering, 10 seconds)
(Note 1)
Symbol *uA VIN TJ TSTG
Rating iO Min xi 0 -65 Max xio 13 150 150 260 I
Unit V C C C
Note 1: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of the specified terminal. POWER DISSIPATION TABLE AE|AE
Package |E JA (C /W ) Derating factor ( mW/ C)TA25 C TA25 C Power rating (mW) TA=70 C Power rating (mW) TA= 85 C Power rating (mW)
SOT-223 136 7.35 919 588 478 Note :|E JA : Thermal Resistance-Junction to Ambient, DF : Derating factor, Po: Power consumption. Junction Temperature Calculation: TJ = TA + (PDA|E JA), Po = DFA (TJ -TA) The |E JA numbers are guidelines for the thermal performance of the device/PC-board system. All of the above assume no ambient airflow.
RECOMMENDED OPERATING CONDITIONS IAE1/4oEOAIo Input Voltage EaEecN Load Current (with adequate heat sinking) OOcA/ Input Capacitor VIN to GND EaEecY Output Capacitor with ESR of 10 max EaocEY Junction temperature 1/2aIA
Symbol *uA
VIN IO
Min xi
2.7 5 1.0
Max xio
12 125
Unit I
V mA |I |I F F C
4.7 TJ -
Typical Applications aIO|A1/4Ay
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+Vout 2
VIN
3
Vin
ADJ
+Vout
2
VOUT
Vref
VIN
FH1117SADJ
R1
3 Cin 10uF
Vin
VOUT
Cout 22uF
FH1117S-Fix
GND/ADJ 1 I
Cout 22UF
Cin 10UF
1
Iadj
R2
Adjustable Voltage Regulator ELECTRICAL CHARACTERISTICS cIOO
Unless otherwise specified, EcIIOEaEA/ Parameter Symbol IEy *uA Reference Voltage I1/4cN 1.5V 1.8V Output Voltage EaocN 2.5V VOUT 2.85V 3.3V 5V Line Regulation IO/OuAE Load Regulation OO/OuAE FH1117 VOI FH1117XXX FH1117 FH1117XXX VOL V Imin IQ ICL VREF
Fixed Voltage Regulator
,VIN = VOUT +2V, IO =10 mA, and TJ = 25 C. Test Conditions Min. Typ. aEOIo1/4 xiO aIO IO = 10mA, VIN - VOUT = 2V 1.238 1.250 10mAIO1A,VOUT +1.5V VIN 1.230 1.250 12V IO = 10mA, VIN = 2.5V 1.485 1.500 10mAIO1A, 3.0VVIN 12V 1.476 1.500 IO = 10mA, VIN = 3.8V 1.782 1.800 10mAIO1A, 3.2VVIN 12V 1.764 1.800 IO = 10mA, VIN = 4.5V 2.475 2.500 10mA IO1A, 4.25VVIN12V 2.450 2.500 IO = 10mA, VIN = 4.85V 2.821 2.850 10mAIO 1A, 4.35VVIN12V 2.805 2.850 IO = 10mA, VIN = 5.0V 3.267 3.300 10mAIO1A, 4.75VVIN12V 3.235 3.300 IO = 10mA, VIN = 7.0V 4.950 5.000 10mAIO1A, 6.5VVIN 12V 4.900 5.000 IO = 10mA, VOUT +1.5V VIN 0.04 12V IO = 10mA, 1.0 VOUT +1.5VVIN12V 10mA IO1A, VIN - VOUT = 3V 0.10
xioO
Max. I
1.262 1.270 1.515 1.524 1.818 1.836 2.525 2.550 2.879 2.895 3.333 3.365 5.050 5.100 0.20 6.0 0.40 10.0 1.15 1.30 5 10 120 0.1 -
Unit
V
V
% mV % mV V mA mA A |I A %/W dB
10mAIO1A, VIN = VOUT +1.5V IO = 10mA IO = 1A VIN 12V VIN 12V VIN - VOUT = 3V IO = 10mA, VIN - VOUT = 2V TA = 25 C, 30 ms pulse -
-
1.0 0.8 0.8 1.7 6 1 1.2 50 0.01 75
Dropout VoltageN1/2 Minimum Load Current xiOOcA/ (Note 1) Quiescent Current FH1117XXX 3/4IcA/ Current LimitcA/*I Adjust Pin Current/OuE cA/ Thermal RegulationIAEIO O (Note 2) Ripple rejection (Note 2)IAE OOAEE
RR
fO = 120HZ, 1V RMS, IO = 400mA,VIN - VOUT = 3V
60
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FAX:0758-2849749 Note 1: For the adjustable device, the minimum load current is the minimum current required to maintain regulation. Normally the
current in the resistor divider used to set the output voltage is selected to meet the minimum load current equirement.
18 A*cxOOCEyAA TEL:0758-2865088 2865091
Note 2: These parameters, although guaranteed, are not tested in production.
SOT-223 *axIIc
SOT-223 DIMENSION(c)
VIN VOUT
A/G
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