CORPORATION
GCLM317L
1 0 0 m A A D J U S T A B L E V O L T A G E R E G U L AT O R
ISSUED DATE :2006/02/17
REVISED DATE :
The GCLM317L is a monolithic integral circuit, designed for use as positive adjustable voltage regulator. It is
designed to supply unit 100mA of load current with an output voltage adjustable over a 1.25V to 37V range.
Description
Features
&
Output voltage adjustable from 1.25V to 37V
&
Output
current in excess of 100mA
&Thermal overload protection
&Short circuit protection
&Output transistor save area compensation
&Floating operation for high voltage applications
Package Dimensions
D
E
S1
TO-92
A
S E A T IN G
PLANE
b1
L
REF.
A
S
1
b
b
1
C
e1
e
b
C
Millimeter
Min.
Max.
4.45
4.7
1.02
-
0.36
0.51
0.36
0.76
0.36
0.51
REF.
D
E
L
e1
e
Millimeter
Min.
Max.
4.44
4.7
3.30
3.81
12.70
-
1.150
1.390
2.42
2.66
Block Diagram
Test Circuit
GCLM317L
GCLM317L
Page: 1/3
CORPORATION
Absolute Maximum Ratings at Ta = 25 :
Parameter
Input-Output Voltage Difference
Power Dissipation
Junction Temperature
Operating Junction Temperature
Storage Temperature Range
Symbol
V
IN
- V
OUT
P
D
T
J
T
OPR
T
STR
Ratings
40
625
+125
0 ~ +70
-40 ~ +150
ISSUED DATE :2006/02/17
REVISED DATE :
Unit
V
mW
:
:
:
Note 1. Absolute maximum ratings are those values beyond witch the device could be permanently damaged. Absolute maximum ratings
are stress ratings only and functional device operation is not implied.
2. The device is guaranteed to meet performance specification within 0 : ‡~ 70 : operating temperature range and assured by design
from -20 : ‡ ‡ ¸ ¨
: `
Electrical Characteristics
(V
IN
- V
OUT
=5V, 0 :
T
J
125 : , I
O
=40mA, unless otherwise specified)
Symbol
REG
LINE
Test Conditions
V
IN
-V
OUT
=3~40V
I
O
<20mA
I
O
=5~100mA
V
OUT
5V
I
O
=5~100mA
V
OUT
5V
T
J
=25 :
0:
0:
0:
T
J
T
J
T
J
125 :
125 :
125 :
T
J
=25 :
T
J
=25 :
Min
-
-
-
-
-
-
-
V
IN
-V
OUT
=3~40V
I
O
=5~100mA, P
D
< 625mW
V
IN
-V
OUT
=3~40V
I
O
=5~100mA, P
D
< 625mW
V
IN
-V
OUT
=40V
V
IN
-V
OUT
=3~13V
V
IN
-V
OUT
=40V
f=10Hz ~ 10KHz, T
J
=25 :
T
J
=25 : , f=120Hz
C
ADJ
=0
C
ADJ
=10uF
-
1.2
-
-
100
25
-
-
66
TYP
0.01
0.02
5
20
0.1
0.3
50
0.2
1.25
0.7
3.5
200
50
0.003
65
80
Max
0.04
0.07
25
70
0.5
1.5
100
5
1.3
-
5
-
-
-
-
Unit
%/V
%/V
mV
%/V
OUT
Parameter
Line Regulation
Load Regulation
REG
LOAD
Adjustable Pin Current
Adjustable Pin Current Change
Reference Voltage
Output Voltage Temperature Stability
Minimum Load Current
Maximum Output Current
Output Noise Voltage (% of V
OUT
)
Ripple Rejection
I
ADJ
I
ADJ
V
REF
V
OUT
/V
OUT
I
LOAD(Min)
I
OUT(Max)
eN
RR
A
A
V
%
mA
mA
%/V
OUT
dB
Note: C
ADJ
is connected between Adjust pin and Ground.
Characteristics Curve
GCLM317L
Page: 2/3
CORPORATION
Application Information and Circuits
ISSUED DATE :2006/02/17
REVISED DATE :
The GCLM317L provides an internal reference voltage of 1.25V between the output and adjustments terminals.
This is used to set a constant current flow across an external resistor driver, giving an output voltage V
OU
T of:
V
OUT
= V
REF *
(1 + R2 / R1) + I
ADJ *
R2
The device is designed to minimize the term I
ADJ
(100uA max) and to maintain it very constant with line and load
charges. Usually, the error term I
ADJ
*R2 can be neglected. To obtain the previous requirement, all the regulator
quiescent current is returned to the output terminal, imposing a minimum load current condition. If the load is
insufficient, the output voltage will rise. The GCLM317L is a floating regulator, input-output differential voltage,
supplies of very high voltage with respect to ground can be regulated as long as the maximum input-output
differential is not exceeded. Furthermore, programmable regulators are easily obtainable and, by connecting a
fixed resistor between the adjustment and output, the device can be used as a precision current regulator.
GCLM317L
GCLM317L
Fig 1. Basic Adjustable Regulator
Fig 2. Voltage Regulator with
Protection Diodes
GCLM317L
GCLM317L
Fig 3. Slow Turn-On 15V Regulator
Fig 4. 5V Electronic Shut-Down
Regulator
Important Notice:
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of GTM.
GTM reserves the right to make changes to its products without notice.
GTM semiconductor products are not warranted to be suitable for use in life-support Applications, or systems.
GTM assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.
Head Office And Factory:
Taiwan:
No. 17-1 Tatung Rd. Fu Kou Hsin-Chu Industrial Park, Hsin-Chu, Taiwan, R. O. C.
TEL : 886-3-597-7061 FAX : 886-3-597-9220, 597-0785
China:
(201203) No.255, Jang-Jiang Tsai-Lueng RD. , Pu-Dung-Hsin District, Shang-Hai City, China
TEL : 86-21-5895-7671 ~ 4 FAX : 86-21-38950165
GCLM317L
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PCB Design
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