Data Sheet
3-TERMINAL ADJUSTABLE REGULATOR
General Description
The AZ317L is an adjustable 3-terminal positive volt-
age regulator capable of supplying 100mA over a 1.2V
to 12V output range. This voltage regulator is excep-
tionally 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 regula-
tors, 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 SOIC-
8 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%
Constant Current Limit over Temperature
Standard 3-lead Transistor Package
Input Ripple Rejection: 70dB
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
Sep. 2006 Rev. 1. 2
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BCD Semiconductor Manufacturing Limited
Data Sheet
3-TERMINAL ADJUSTABLE REGULATOR
Pin Configuration
Z Package
(TO-92)
V
IN
V
OUT
V
OUT
ADJ
AZ317L
M Package
(SOIC-8)
3
2
1
V
IN
V
OUT
ADJ
1
2
3
4
8
7
6
5
NC
V
OUT
V
OUT
NC
Figure 2. Pin Configuration of AZ317L (Top View)
Functional Block Diagram
V
IN
ADJ
V
OUT
Figure 3. Functional Block Diagram of AZ317L
Sep. 2006 Rev. 1. 2
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BCD Semiconductor Manufacturing Limited
Data Sheet
3-TERMINAL ADJUSTABLE REGULATOR
Ordering Information
AZ317L
AZ317L
Circuit Type
-
E1: Lead Free
Blank: Tin Lead
TR: Tape and Reel
Blank: Tube
Package
Z: TO-92
M: SOIC-8
Package
Temperature
Range
0 to 125
o
C
0 to 125
o
C
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
Tube
Tape & Reel
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.
Sep. 2006 Rev. 1. 2
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BCD Semiconductor Manufacturing Limited
Data Sheet
3-TERMINAL ADJUSTABLE REGULATOR
Absolute Maximum Ratings (Note 1)
Parameter
Input Voltage
Input-Output Voltage Differential
Operating Junction Temperature
Storage Temperature Range
Power Dissipation
Lead Temperature (Soldering, 4sec.)
ESD (Human Body Model)
ESD (Machine Model)
T
J
T
STG
P
D
T
LEAD
ESD
ESD
Symbol
V
IN
Value
20
15
150
-65 to 150
700
260
2000
200
Unit
V
V
o
C
o
C
AZ317L
mW
o
C
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 Max-
imum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Input Voltage
Operating Junction Temperature
Symbol
V
IN
T
J
0
Min
Max
18
125
Unit
V
o
C
Sep. 2006 Rev. 1. 2
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BCD Semiconductor Manufacturing Limited
Data Sheet
3-TERMINAL ADJUSTABLE REGULATOR
Electrical Characteristics
0
o
C
≤
T
J
≤
125
o
C, V
IN
-V
OUT
= 5V, I
OUT
= 40mA, P
D
≤ 625mW,
unless otherwise specified.
Parameter
Symbol
Conditions
T
J
= 25
o
C, 3V≤ (V
IN
-V
OUT
)
≤
15V
I
OUT
≤
20mA (Note 2)
3V≤ (V
IN
-V
OUT
)
≤
15V, I
OUT
≤
20mA
(Note 2)
T
J
= 25
o
C, 5mA
≤
I
OUT
≤
100mA
(Note 2)
5mA
≤
I
OUT
≤
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 V
OUT)
Thermal Resistance
Junction to Case
I
ADJ
∆I
ADJ
AZ317L
Min
Typ
0.01
Max
0.04
Unit
%/V
Line Regulation
∆V
OUT
0.02
0.1
0.3
0.04
50
0.07
0.5
1.5
0.2
100
5
1.30
300
5
%/V
%
%
%/W
µA
µA
V
mA
mA
dB
Load Regulation
∆V
OUT
T
J
= 25
o
C, 10ms Pulse
5mA
≤
I
OUT
≤
100mA
3V≤ (V
IN
-V
OUT
)
≤
15V
3V
≤
(V
IN
-V
OUT
)
≤
15V
5mA
≤
I
OUT
≤
100mA
3V≤ (V
IN
-V
OUT
)
≤
13V
3V≤ (V
IN
-V
OUT
)
≤
13V
V
OUT
= 10V, f = 120Hz, C
ADJ
= 0µF
V
OUT
= 10V, f = 120Hz, C
ADJ
= 10µF
0
o
C
≤ Τ
J
≤ 125
o
C
T
J
=125
o
C, 1000 Hours
T
J
= 25
o
C, 10Hz
≤
f
≤ 10ΚΗz
TO-92
SOIC-8
60
1.20
100
0.2
1.25
200
3.5
62
70
0.65
0.3
0.003
185
175
V
REF
I
LIMIT
I
LOAD
(MIN)
PSRR
%
1
%
%
o
C/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.
Sep. 2006 Rev. 1. 2
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BCD Semiconductor Manufacturing Limited
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