CORPORATION
GULM317
ISSUED DATE :2005/12/20
REVISED DATE :
3 - T E R M I N A L 1 . 5 A P O S I T I V E 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
The GULM317 is an adjustable 3-termial positive voltage regulator, designed to supply more than 1.5A of output
current with voltage adjustable from 1.3 to 37V.
Description
Features
&
Output current up to 1.5A.
&
Output
voltage adjustable from 1.3V to 37V.
&Internal short circuit protection.
&Internal over temperature protection.
&Safe-Area compensation for output transistor.
Package Dimensions
REF.
A
b
L4
c
L3
L1
E
Millimeter
REF.
Min.
Max.
4.40
4.80
c2
0.76
1.00
b2
0.00
0.30 B D
0.36
0.5
e
1.50 REF.
L
2.29
2.79
9.80
10.4
L2
Millimeter
Min.
Max.
1.25
1.45
1.17
1.47
8.6
9.0
2.54 REF.
14.6
15.8
0˚
8˚
1.27 REF.
Block Diagram
Absolute Maximum Ratings at Ta = 25 :
Parameter
Input-Output Voltage Difference
Load Temperature
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Symbol
Vi-Vo
Tlead
PD
Topr
Tstg
Ratings
40
230
Internal limited
0 ~ +125
-65 ~ +150
:
:
Unit
V
:
GULM317
Page: 1/3
CORPORATION
Electrical Characteristics
(Vi-Vo=5V, 0 :
Parameter
Line Regulation
Symbol
Vo
Test Conditions
Ta=25 : , 3V
Ta=0~125 : , 3V
Ta=25 :
Load Regulation
Vo
10mA
10mA
Adjustable Pin Current
Adjustable Pin Current Change
Reference Voltage
Temperature Stability
Minimum Load Current for Regulation
Maximum Output Current
RMS Noise v.s. % of Vout
Ripple Rejection
Long-term Stability, Tj=Thigh
Junction to Case Thermal Resistance
IADJ
IADJ
VREF
STT
IL(Min)
Io(Max)
eN
RR
ST
R jc
Vi-Vo=40V
Vi-Vo 15V, PD
Vi-Vo 15V, PD
Ta=25 : , 10Hz
f
PMax
10KHz
PMax Ta=25 :
2.5V Vi-Vo 40V,
10mA Io IMax, PD PMax
10mA
3V Vi-Vo 40V,
Io IMax, PD PMax
Io IMax
Io IMax
Vi-Vo
40V
40V
Vi-Vo<
Min
-
-
-
-
-
-
-
-
ISSUED DATE :2005/12/20
REVISED DATE :
< Tj <125 : , Io=500mA, IMax=1.5A, PMax=20W, unless otherwise specified)
TYP
0.01
0.02
18
0.4
40
0.8
46
2.0
1.25
0.7
3.5
2.2
0.4
0.003
60
75
0.3
5
Max
0.04
0.07
25
0.5
70
1.5
100
5
1.275
-
10
-
-
0.01
-
-
1
-
Unit
%/V
%/V
mV
%/Vo
mV
%/Vo
A
A
V
%/Vo
mA
A
%/Vo
dB
%
: /W
Vo 6V
Vo 5V
Vo 5V
Vo 6V
1.225
-
-
1.5
0.15
-
-
66
-
-
Vo=10V, f=120Hz
Vo=10V, f=120Hz, Cadj=10 F
Ta=25 : ,1000hr
-
*Note: Testing with low duty pulse should be used to avoid heating effect.
Characteristics Curve
GULM317
Page: 2/3
CORPORATION
Application Circuit
GULM317
GULM317
ISSUED DATE :2005/12/20
REVISED DATE :
GULM317
GULM317
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
GULM317
Page: 3/3
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