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Data Sheet 3-TERMINAL ADJUSTABLE REGULATOR General Description
The AZ317L is an adjustable 3-terminal positive voltage regulator capable of supplying 100mA over a 1.2V to 12V output range. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. Both line and load regulation are better than standard fixed regulators. In addition to higher performance than fixed regulators, AZ317L employs overload protection. Included on the chip are current limiting and thermal overload protection. All overload protection circuitry remains fully functional even when the adjustment terminal is disconnected. The AZ317L is available in standard TO-92 and SOIC8 packages.
AZ317L
Features
* * * * * * * * Adjustable Output Down to 1.2V Guaranteed 100mA Output Current Output Short Circuit Protected Line Regulation: 0.01%/V Load Regulation: 0.1% Current Limit Constant with Temperature Standard 3-lead Transistor Package 70 dB Ripple Rejection
Applications
* * * * High Efficiency Linear Regulators Post Regulation for Switching Supplies Microprocessor Power Supply Mother Board I/O Power Supply
TO-92
SOIC-8
Figure 1. Package Types of AZ317L
Apr. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet 3-TERMINAL ADJUSTABLE REGULATOR Pin Configuration
Z Package (TO-92)
VIN
3 2 1
AZ317L
M Package (SOIC-8)
1 2 3 4 8 7 6 5 NC VOUT VOUT NC
VIN VOUT ADJ
VOUT VOUT ADJ
Top View
Figure 2. Pin Configuration of AZ317L
Functional Block Diagram
VIN
ADJ
VOUT
Figure 3. Functional Block Diagram of AZ317L BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 1
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Data Sheet 3-TERMINAL ADJUSTABLE REGULATOR Ordering Information AZ317L
AZ317L Circuit Type
E1: Lead Free Blank: Tin Lead TR: Tape and Reel or Ammo Blank: Tube or Bulk
Package Z: TO-92 M: SOIC-8
Package
Temperature Range 0 to 125oC 0 to 125oC
Part Number Tin Lead AZ317LZ AZ317LZTR AZ317LM AZ317LMTR Lead Free AZ317LZ-E1 AZ317LZTR-E1 AZ317LM-E1 AZ317LMTR-E1 Tin Lead AZ317LZ AZ317LZ 317LM 317LM
Marking ID Lead Free AZ317LZ-E1 AZ317LZ-E1 317LM-E1 317LM-E1
Packing Type Bulk Ammo Tube Tape & Reel
TO-92
SOIC-8
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Apr. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet 3-TERMINAL ADJUSTABLE REGULATOR Absolute Maximum Ratings (Note 1)
Parameter Input Voltage Input-Output Voltage Differential Operating Junction Temperature Range Storage Temperature Range Power Dissipation Lead Temperature (Soldering, 4 sec.) ESD (Machine Model) TJ TSTG PD TLEAD ESD Symbol VIN Value 20 15 150 -65 to 150 700 260 250 Unit V V
o
AZ317L
C
oC
mW
o
C
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 Input Voltage Operating Junction Temperature Range Symbol VIN TJ 0 Min Max 15 125 Unit V
oC
Apr. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet 3-TERMINAL ADJUSTABLE REGULATOR Electrical Characteristics
0oC TJ 125oC, VIN -VOUT = 5V, IOUT = 40mA, PD 625mW, unless otherwise specified. Parameter Symbol Conditions TJ = 25oC, 3V (VIN -VOUT) 15V IL 20mA (Note 2) 3V (VIN-VOUT) 15V, IL 20mA (Note 2) TJ = 25oC, 5mA IOUT 100mA (Note 2) 5mA IOUT 100mA (Note 2) Thermal Regulation Adjust Pin Current Adjust Pin Current Change Reference Voltage Current Limit Minimum Load Current Ripple Rejection Temperature Stability Long Term Stability RMS Output Noise, % of VOUT Thermal Resistance Junction to Case VREF ILIMIT 5mA IL 100mA 3V (VIN-VOUT) 15V 3V (VIN -VOUT) 15V 5mA IOUT 100mA 3V (VIN -VOUT) 13V 3V (VIN -VOUT) 13V VOUT = 10V, f = 120Hz, CADJ = 0F VOUT = 10V, f = 120Hz, CADJ = 10F 0oC J 125oC TJ=125oC, 1000 Hours TJ = 25oC, 10Hz f 10z TO-92 SOIC-8 60 1.20 100 TJ = 25oC, 10ms Pulse Min Typ 0.01 Max 0.04 Unit %/V
AZ317L
Line Regulation
RegLINE
0.02 0.1 0.3 0.04 50 0.2 1.25 200 3.5 62
0.07 0.5 1.5 0.2 100 5 1.30 300 5
%/V % % %/W A A V mA mA
Load Regulation
RegLOAD
dB 70 0.65 0.3 0.003 185 175 1 % % %
oC/W
Note 2: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification of thermal regulation.
Apr. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet 3-TERMINAL ADJUSTABLE REGULATOR Typical Performance Characteristics AZ317L
0.06
5.245
0.04
5.240
Output Voltage Deviation (V)
0.02
Output Voltage (V)
IO=10mA
5.235
0.00
5.230
-0.02
IO=100mA AZ317L VIN=10.25V VOUT=5.25V
5.225
AZ317L IO=10mA
5.220
-0.04
-0.06 -45 -25 0 25 50
o
5.215
75
100
125
8
10
12
14
16
18
20
Temperature ( C)
Input Voltage (V)
Figure 4. Load Regulation vs. Temperature
Figure 5. Output Voltage vs. Input Voltage
1.265
54
IO=10mA
1.260
IO=10mA 52
Reference Voltage(V)
1.255
Adjust Pin Current (A)
1.250
IO=100mA
50 IO=100mA 48
1.245
1.240
46 AZ317L VIN=10.25V VOUT=5.25V
1.235
AZ317L VIN=10.25V VOUT=5.25V
44
1.230 -45
-25
0
25
50
O
75
100
125
42 -45 -25 0 25 50
o
75
100
125
Temperature( C)
Temperature ( C)
Figure 6. Reference Voltage vs. Temperature
Figure 7. Adjustment Current vs. Temperature
Apr. 2005 Rev. 1. 1
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Data Sheet 3-TERMINAL ADJUSTABLE REGULATOR Typical Performance Characteristics (Continued) AZ317L
1.9
6
Input Output Differential (V)
1.8
1.7
Quiescent Current (mA)
IO=100mA
5
4
1.6
3
1.5
IO=10mA
2
1.4
1.3
AZ317L VOUT=5.25V
AZ317L VOUT=5.25V
1
TA=25 C
o
1.2 -45 -25 0 25 50
o
0
75 100 125
2
4
6
8
10
12
14
16
Temperature ( C)
Input-Output Differential (V)
Figure 8. Dropout Voltage vs. Temperature
Figure 9. Minimum Operating Current
80 70
80
C ADJ=10F
C ADJ=10F
70
Ripple Rejection (dB)
Ripple Rejection (dB)
60 50 40 30 20 10 0 2 4 6 8 10
C ADJ=0F
60
C ADJ=0F
50 40 30 20 10 0 100
AZ317L V IN-VOUT = 5V IO= 40mA f = 120Hz o T A= 25 C
12 14 16
AZ317L V IN=10.25V V OUT =5.25V IO=40mA T A=25 C
1000 10000 100000
o
Output Voltage (V)
Frequency (Hz)
Figure 10. Ripple Rejection vs. Output Voltage
Figure 11. Ripple Rejection vs. Frequency
Apr. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet 3-TERMINAL ADJUSTABLE REGULATOR Typical Performance Characteristics (Continued) AZ317L
Output Voltage Deviation
V OUT
Output Voltage Deviation
V OUT
Load Current
Input Voltage Change
AZ317L VIN=10.25V VOUT=5.25V CIN=0.1 F CL=1 F TA=25oC IOUT (5mA to 100mA) 50mA
AZ317L IO =40mA V OUT =5.25V C IN =0.1 F C L =1 F T A =25 oC
V IN (10.25V to 11.25V)
Figure 12. Load Transient Response
Figure 13. Line Transient Response
Power=1W
Dissipation
Output Voltage Deviation
VOUT
AZ317L V OUT=5.25V C IN=0.1 F C L=1 F TA=25oC
1W
Figure 14. Thermal Regulation
Apr. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet 3-TERMINAL ADJUSTABLE REGULATOR Typical Application AZ317L
AZ317L VIN 7V ~ 18V VIN C1 0.1F R2 720 ADJ VOUT R1 240 VOUT 5V C2 0.1F R3 TTL 1K
VIN 9V ~ 18V C1 1000F (Note 4)
AZ317L VIN ADJ VOUT
R1 240 R2 1.1K R3 100 R4 10 (Note 3)
Q1 2N2219
Q1 2N2222
Figure 15. 5V Logic Regulator with Electronic Shutdown (Minimum output = 1.2V)
Figure 16. Current Limited 6V Charger Note 3: Sets peak current, IPeak= 0.6V/R4 Note 4: 1000F is recommended to filter out any input transients.
AZ317L VIN 15V C1 0.1F VIN ADJ VOUT R1 2K 5% VOUT 10V
AZ317L VIN C2 0.1F C1 10F R2 5K VIN ADJ VOUT R1 240 D1 1N4002 C3 1F Solid Tantalum VOUT
D1 LM329 R3 267 1%
R2 1.5K 1%
Figure 17. High Stability 10V Regulator
Figure 18. Adjustable Regulator with Improved Ripple Rejection Note 5: Discharge C1 if output is shorted to ground.
Apr. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet 3-TERMINAL ADJUSTABLE REGULATOR Typical Application (Continued) AZ317L
AZ317L + VIN ADJ VOUT VOUT = 1.25V(R2/R1 +1)
VIN C2 0.1F VIN
AZ317L
R1 120 R2 2K
ADJ
VOUT R1 240 R3 50k
VOUT 15V
Transformer Rectifiers and Filter Capacitor
1N4002 R1 2.7k 2N2905 C1 25F
R4=2R3=22
Q1 2N2219 R3 10
Figure 19. Adjustable Regulator with Current Limit Note 6: Short circuit current is approximately 600mV/R3 or 60mA Note 7: At 2.5mA output only 3/4V of drop occurs in R3 and R4.
Figure 20. Slow Turn-on 15V Regulator
Apr. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet 3-TERMINAL ADJUSTABLE REGULATOR Mechanical Dimensions TO-92 Unit: mm(inch) AZ317L
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)
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14.100(0.555) 14.500(0.571)
BCD Semiconductor Manufacturing Limited
Data Sheet 3-TERMINAL ADJUSTABLE REGULATOR Mechanical Dimensions (Continued) SOIC-8 Unit: mm(inch) AZ317L
4.800(0.189) 5.000(0.197) 7 1.350(0.053) 1.750(0.069)
0.320(0.013)
8
7
8
0.675(0.027) 0.725(0.029)
D
5.800(0.228) 6.200(0.244)
D 20:1
1.270(0.050) TYP
0.100(0.004) 0.300(0.012) R0.150(0.006)
0.800(0.031)
0.200(0.008)
1.000(0.039) 3.800(0.150) 4.000(0.157)
0 8
0.330(0.013) 0.510(0.020) 0.900(0.035)
1 5
R0.150(0.006)
0.190(0.007) 0.250(0.010)
Apr. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
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BCD Semiconductor (Taiwan) Company Limited
4F, 298-1 Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel: +886-2-2656-2808, Fax: +886-2-2656-2806
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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