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Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR General Description
The AS78LXX series are three terminal positive regulators designed for a wide variety of applications including local, on-card regulation. This series of regulators are complete with internal current limiting, thermal shutdown protection, and safe-area compensation which make them virtually immune from output overload. If adequate heat sinking are provided, these regulators can deliver output currents up to 100mA. The AS78LXX series are available in TO-92 (bulk or ammo packing) and SOT-89-3 packages.
AS78LXX
Features
* * * * * * * Output Current up to 100mA Fixed Output Voltages of 5V, 12V, 15V, 18V and 24V Output Voltage Accuracy of 5% over the Full Temperature Range Internal Short Circuit Current Limiting Internal Thermal Overload Protection No External Components Output Transistor Safe-area Protection
Applications
* * * Consumer Electronics Microprocessor Power Supply Mother Board
TO-92
TO-92 Ammo Packing
SOT-89-3
Figure 1. Package Types of AS78LXX
Mar. 2007 Rev. 1. 2 1
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Pin Configuration AS78LXX
Z Package (TO-92)
Z Package (TO-92 Ammo Packing)
R Package (SOT-89-3)
3 2 1
INPUT GND OUTPUT
3 2 1
INPUT GND OUTPUT GND
3 2 1
INPUT GND OUTPUT
Figure 2. Pin Configuration of AS78LXX (Top View)
Mar. 2007 Rev. 1. 2 2
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Functional Block Diagram
3
R9 Q9 Q14 R16 Q21 Q24 C1 R1 Q18 R12 Q3 Q6 Q10 R3 Q11 Q7 Q1 Q4 R4 Q8 R11 R5 R6 Q23 Q13 Q2 Q5 Q15 C2 Q19 Q12 R2 R8 R10 Q17 Q20 R19 R15 R7 Q16 R14 Q22 R18 R2 2 R17 R23 R20 R21 D1 Zener INPUT
AS78LXX
1
OUTPUT
R13
2
GND
Figure 3. Functional Block Diagram of AS78LXX
Mar. 2007 Rev. 1. 2 3
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Ordering Information
AS78LXX Circuit Type Output Voltage 05: 05V 12: 12V 15: 15V 18: 18V 24: 24V
AS78LXX
E1: Lead Free TR: Tape & Reel or Ammo Blank: Bulk Package Z: TO-92 R: SOT-89-3
Package
Temperature Range
Part Number AS78L05Z-E1 AS78L05ZTR-E1 AS78L12Z-E1 AS78L12ZTR-E1
Marking ID AS78L05Z-E1 AS78L05Z-E1 AS78L12Z-E1 AS78L12Z-E1 AS78L15Z-E1 AS78L15Z-E1 AS78L18Z-E1 AS78L18Z-E1 AS78L24Z-E1 AS78L24Z-E1 E78E E78F E78G E78H E78I
Packing Type Bulk Ammo Bulk Ammo Bulk Ammo Bulk Ammo Bulk Ammo Tape & Reel Tape & Reel Tape & Reel Tape & Reel Tape & Reel
TO-92
-40 to 125oC
AS78L15Z-E1 AS78L15ZTR-E1 AS78L18Z-E1 AS78L18ZTR-E1 AS78L24Z-E1 AS78L24ZTR-E1 AS78L05RTR-E1 AS78L12RTR-E1
SOT-89-3
-40 to 125oC
AS78L15RTR-E1 AS78L18RTR-E1 AS78L24RTR-E1
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Mar. 2007 Rev. 1. 2 4
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Absolute Maximum Ratings (Note 1)
Parameter Input Voltage Operating Junction Temperature Lead Temperature (Soldering, 10sec) Power Dissipation Storage Temperature Range Thermal Resistance ESD (Human Body Model) ESD (Machine Model) Symbol VIN TJ TLEAD PD TSTG JA ESD ESD TO-92 2000 200 Value 36 150 260 750 -65 to 150 180 Unit V
o
AS78LXX
C
oC
mW
oC oC/W
V V
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter AS78L05 AS78L12 Input Voltage AS78L15 AS78L18 AS78L24 Operating Junction Temperature Range TJ -40 VIN Symbol Min Max 25 36 36 36 36 125
oC
Unit
V
Mar. 2007 Rev. 1. 2 5
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Electrical Characteristics
AS78L05 (VIN=10V, IOUT=40mA, CIN=0.33F, COUT=0.1F, TJ=25oC, Bold typeface applies over -40oCTJ125oC, unless otherwise specified.) Parameter Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Ripple Rejection Dropout Voltage Output Noise Voltage Output Voltage Temperature Coefficient Symbol VOUT VRLINE VRLOAD IQ IQ PSRR VDROP NO VOUT/T (VOUT/VOUT)/T IOUT=5mA 8VVIN20V 1mAIOUT40mA f=120Hz, 8VVIN18V IOUT=40mA IOUT=100mA 10Hzf100kHz (Note 2) 47 62 1.7 1.8 40 0.42 84 Conditions 7VVIN20V, 1mAIOUT100mA, PD0.75W 7VVIN20V 1mAIOUT100mA Min 4.8 4.75 8 10 3 Typ 5.0 Max 5.2 5.25 150 60 5.5 1.5 0.1 Unit V mV mV mA mA dB V V mV/oC ppm/oC
AS78LXX
Note 2: 0.01F minimum load capacitance is recommended to limit high frequency noise.
AS78L12 (VIN=19V, IOUT=40mA, CIN=0.33F, COUT=0.1F, TJ=25oC, Bold typeface applies over -40oCTJ125oC, unless otherwise specified.) Parameter Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Ripple Rejection Dropout Voltage Output Noise Voltage Output Voltage Temperature Coefficient Symbol VOUT VRLINE VRLOAD IQ IQ PSRR VDROP NO VOUT/T (VOUT/VOUT)/T IOUT=5mA 16VVIN27V 1mAIOUT40mA f=120Hz, 15VVIN25V IOUT=40mA IOUT=100mA 10Hzf100kHz (Note 2) 37 42 1.7 1.8 80 1 84 Conditions 14.5VVIN27V, 1mAIOUT100mA, PD0.75W 14.5VVIN27V 1mAIOUT100mA Min 11.5 11.4 20 20 3 Typ 12.0 Max 12.5 12.6 250 100 6 1.5 0.1 Unit V mV mV mA mA dB V V mV/oC ppm/oC
Note 2: 0.01F minimum load capacitance is recommended to limit high frequency noise.
Mar. 2007 Rev. 1. 2 6
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Electrical Characteristics (Continued)
AS78L15 (VIN=23V, IOUT=40mA, CIN=0.33F, COUT=0.1F, TJ=25oC, Bold typeface applies over -40oCTJ125oC, unless otherwise specified.) Parameter Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Ripple Rejection Dropout Voltage Output Noise Voltage Output Voltage Temperature Coefficient Symbol VOUT VRLINE VRLOAD IQ IQ PSRR VDROP NO VOUT/T (VOUT/VOUT)/T IOUT=5mA 20VVIN30V 1mAIOUT40mA f=120Hz, 18.5VVIN28.5V IOUT=40mA IOUT=100mA 10Hzf100kHz (Note 2) 34 39 1.7 1.8 90 1.25 84 Conditions 17.5VVIN30V, 1mAIOUT100mA, PD0.75W 17.5VVIN30V 1mAIOUT100mA Min 14.4 14.25 25 25 3 Typ 15.0 Max 15.6 15.75 250 150 6 1.5 0.1 Unit V mV mV mA mA dB V V mV/oC ppm/oC
AS78LXX
Note 2: 0.01F minimum load capacitance is recommended to limit high frequency noise.
AS78L18 (VIN=27V, IOUT=40mA, CIN=0.33F, COUT=0.1F, TJ=25oC, Bold typeface applies over -40oCTJ125oC, unless otherwise specified.) Parameter Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Ripple Rejection Dropout Voltage Output Noise Voltage Output Voltage Temperature Coefficient Symbol VOUT VRLINE VRLOAD IQ IQ PSRR VDROP NO VOUT/T (VOUT/VOUT)/T IOUT=5mA 23VVIN33V 1mAIOUT40mA f=120Hz, 23VVIN33V IOUT=40mA IOUT=100mA 10Hzf100kHz (Note 2) 33 38 1.7 1.8 150 1.5 84 Conditions 22VVIN33V, 1mAIOUT100mA, PD0.75W 22VVIN33V 1mAIOUT100mA Min 17.3 17.1 30 30 3 Typ 18.0 Max 18.7 18.9 300 170 6 1.5 0.1 Unit V mV mV mA mA dB V V mV/oC ppm/oC
Note 2: 0.01F minimum load capacitance is recommended to limit high frequency noise.
Mar. 2007 Rev. 1. 2 7
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Electrical Characteristics (Continued)
AS78L24 (VIN=33V, IOUT=40mA, CIN=0.33F, COUT=0.1F, TJ=25oC, Bold typeface applies over -40oCTJ125oC, unless otherwise specified.) Parameter Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Ripple Rejection Dropout Voltage Output Noise Voltage Output Voltage Temperature Coefficient Symbol VOUT VRLINE VRLOAD IQ IQ PSRR VDROP NO VOUT/T (VOUT/VOUT)/T IOUT=5mA 28VVIN36V 1mAIOUT40mA f=120Hz, 29VVIN35V IOUT=40mA IOUT=100mA 10Hzf100kHz (Note 2) 31 37 1.7 1.8 200 2 84 Conditions 27VVIN36V, 1mAIOUT100mA, PD0.75W 27VVIN36V 1mAIOUT100mA Min 23 22.8 50 40 3 Typ 24.0 Max 25 25.2 300 200 6 1.5 0.1 Unit V mV mV mA mA dB V V mV/oC ppm/oC
AS78LXX
Note 2: 0.01F minimum load capacitance is recommended to limit high frequency noise.
Mar. 2007 Rev. 1. 2 8
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Typical Performance Characteristics AS78LXX
30
5.07
o
25
TC=25 C IOUT=40mA
5.06 5.05
Output Voltage (V)
20
Output Voltage (V)
15
AS78L05 AS78L12 AS78L24
5.04 5.03 5.02 5.01
10
5
AS78L05 VIN=10V IOUT=1mA
5.00
0 0 5 10 15 20 25 30 35
4.99 -25 0 25 50
o
75
100
125
Input Voltage (V)
Case Temperature ( C)
Figure 4. Output Voltage vs. Input Voltage
Figure 5. Output Voltage vs. Case Temperature
26 24 22 20
2.0 1.8
VIN=10V/19V/33V IOUT=1mA
1.6
Dropout Voltage (V)
Output Voltage (V)
18 16 14 12 10 8 6 4 2 0 0 25 50 75 100 125
o
1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0
AS78L05 AS78L12 AS78L24
1mA 40mA 70mA 100mA
AS78L05 VOUT=VOUT(nominal)x99%
150
175
200
-25
0
25
50
o
75
100
125
Case Temperature ( C)
Case Temperature ( C)
Figure 6. Over Temperature Protection
Figure 7. Dropout Voltage vs. Case Temperature
Mar. 2007 Rev. 1. 2 9
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Typical Performance Characteristics (Continued) AS78LXX
25
3.5
VIN=10V/19V/33V
20
3.4 3.3
Quiescent Current (mA)
TC=25 C AS78L05 AS78L12 AS78L24
o
Output Voltage (V)
3.2 3.1 3.0 2.9 2.8 2.7 2.6
15
10
AS78L05 VIN=10V IOUT=1mA
5
0 0 50 100 150 200 250
2.5 -25 0 25 50
o
75
100
125
Output Current (mA)
Case Temperature ( C)
Figure 8. Output Voltage vs. Output Current
Figure 9. Quiescent Current vs. Case Temperature
2.8
60
2.4
50
Power Dissipation (W)
2.0
1.6
PSRR (dB)
40
30
1.2
AS78L05 VIN=10V IOUT=40mA CIN=0.33F COUT=0.1F
20
0.8
AS78L05
0.4
10
0.0 -25 0 25 50
o
75
100
125
0 10
100
1000
10000
100000
1000000
Case Temperature ( C)
Frequency (Hz)
Figure 10. Power Dissipation vs. Case Temperature
Figure 11. PSRR vs. Frequency
Mar. 2007 Rev. 1. 2 10
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Typical Performance Characteristics (Continued) AS78LXX
VOUT (100mV/Div)
20 VIN (5V/Div) 15 10 5 AS78L05
200 100 0 -100 AS78L05
IOUT (100mA/Div)
VOUT (20mV/Div)
20 0 -20 -40
Time (20s/Div)
100 0 -100 -200
Time (40s/Div)
Figure 12. Line Transient (Conditions: IOUT=40mA, CIN=0.33F, COUT=0.1F)
Figure 13. Load Transient (Conditions: VIN=10V, CIN=0.33F, COUT=0.1F)
Mar. 2007 Rev. 1. 2 11
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Typical Application AS78LXX
VIN
0.33F
AS78LXX
INPUT OUTPUT GND
0.1F
VOUT
Figure 14. Typical Application of AS78LXX
Mar. 2007 Rev. 1. 2 12
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Mechanical Dimensions TO-92 Unit: mm(inch) AS78LXX
1.100(0.043) 1.400(0.055) 3.430(0.135) MIN 0.360(0.014) 0.510(0.020)
3.300(0.130)
3.700(0.146)
0.000(0.000) 0.380(0.015) 1.600(0.063) MAX 4.400(0.173) 4.700(0.185)
4.300(0.169)
4.700(0.185)
0.380(0.015) 0.550(0.022)
1.270(0.050) TYP
2.440(0.096) 2.640(0.104)
Mar. 2007 Rev. 1. 2 13
14.100(0.555) 14.500(0.571)
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Mechanical Dimensions (Continued) TO-92 Ammo Packing Unit: mm(inch) AS78LXX
12.400(0.488) 13.000(0.512)
1.000(0.039) P 4.400(0.173) 4.600(0.181)
1.000(0.039) h 3.400(0.134) 3.600(0.142) 4.400(0.173) 4.600(0.181)
19.000(0.748) 21.000(0.827) 0.380(0.015) 0.550(0.022) 1.000 (0.039) MAX 5.500(0.217) 6.500(0.256) 6.050(0.238) 6.650(0.262) 2.200(0.087) 2.800(0.110) 2.200(0.087) 2.800(0.110) 15.500(0.610) 16.500(0.650)
2.500(0.098) MIN
8.500(0.335) 9.500(0.374)
3.550(0.140) 4.150(0.163)
3.800(0.150) 4.200(0.165) 17.500(0.689) 19.000(0.748)
12.500(0.492) 12.900(0.508)
0.150(0.006) 0.250(0.010)
0.350(0.014) 0.450(0.018)
Mar. 2007 Rev. 1. 2 14
BCD Semiconductor Manufacturing Limited
Preliminary Datasheet 100mA POSITIVE VOLTAGE REGULATOR Mechanical Dimensions (Continued) SOT-89-3 Unit: mm(inch) AS78LXX
1.630(0.064) 1.830(0.072) 1.400(0.055)*
4.400(0.173) 4.600(0.181)
0.000(0.000) 0.076(0.003)
1.400(0.055) 1.600(0.063)
R0.200(0.008)
3.950(0.156) 4.250(0.167) 1.200(0.047) 0.900(0.035) 2.300(0.091) 2.600(0.102)
3
10
0.360(0.014) 0.520(0.020) 3.000(0.118)
0.360(0.014) 0.480(0.019) 0.440(0.017) 0.560(0.022)
0.360(0.014) 0.440(0.017)
3
10
R0.150(0.006)
Mar. 2007 Rev. 1. 2 15
BCD Semiconductor Manufacturing Limited
http://www.bcdsemi.com
IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others.
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REGIONAL SALES OFFICE
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