gsc2139 E-Tech Electronics LTD, gsc2139 Datasheet

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gsc2139

Manufacturer Part Number
gsc2139
Description
1.5a Cmos Low Dropout Voltage Regulator
Manufacturer
E-Tech Electronics LTD
Datasheet
G
Description
The GSC2139 of positive, linear regulators feature low ground current (45 A typ.) with low dropout voltage,
making them ideal for battery applications.
Output voltages are set at the factory and trimmed to 1.5% accuracy.
These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under
the “Worst” of operating conditions.
The GSC2139 is stable with an output capacitance of 4.7 F or greater.
Features
Applications
Package Dimensions
Typical Application Circuit
GSC2139
G
&Guaranteed 1.55A output
&Over-Temperature Shutdown
&Current Limiting
&Highly Accurate± 1.5%
&Low ‡ T emperature Coefficient
&Power-Saving Shutdown Mode
&Adjustable Version
&Instrumentation
&Wireless Devices
&PC Peripherals
&Portable Electronics
&
&
Very Low Dropout Voltage
Battery Powered Widgets
S
S
C
C
2
2
1
1
3
3
9
9
1
1
.
.
5
5
5
5
A
A
C
C
M
M
O
O
S
S
Functional Block Diagram
L
L
o
o
w
w
REF.
C
D
A
B
E
F
D
D
r
r
o
o
p
p
Min.
5.80
4.80
3.80
0.40
0.19
o
o
Millimeter
u
u
t
t
V
V
o
o
Max.
6.20
5.00
4.00
0.90
0.25
l
l
t
t
a
a
g
g
e
e
REF.
M
H
K
G
L
J
R
ISSUED DATE :2006/04/14
REVISED DATE :
R
e
e
g
g
u
u
Min.
l
0.10
0.35
1.35
l
a
a
Millimeter
0.375 REF.
t
t
1.27 TYP.
Page: 1/7
o
o
45°
r
r
Max.
0.25
0.49
1.75

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gsc2139 Summary of contents

Page 1

... Description The GSC2139 of positive, linear regulators feature low ground current (45 A typ.) with low dropout voltage, making them ideal for battery applications. Output voltages are set at the factory and trimmed to 1.5% accuracy. These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the “ ...

Page 2

... EN Input Threshold EN Input Bias Current Shutdown Supply Current Note 1: V (E) =Effective Output Voltage (i.e. the output voltage when “V OUT certain I value). OUT 2: V (T) =Specified Output Voltage OUT (MIN) OUT DROPOUT GSC2139 Symbol OUT V OUT Topr Tj Tj Max (T)+2V ...

Page 3

... External Capacitors The GSC2139 is stable with an output capacitance to ground of 4 greater. Ceramic capacitors have the lowest ESR, and will offer the best AC performance. Conversely, Aluminum Electrolytic capacitors exhibit the highest ESR, resulting in the poorest AC response. Unfortunately, large value ceramic capacitors are comparatively expensive ...

Page 4

... Characteristics Curve GSC2139 ISSUED DATE :2006/04/14 REVISED DATE : Page: 4/7 ...

Page 5

... GSC2139 ISSUED DATE :2006/04/14 REVISED DATE : 115 : -45 : Page: 5/7 ...

Page 6

... GSC2139 ISSUED DATE :2006/04/14 REVISED DATE : Page: 6/7 ...

Page 7

... 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 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 GSC2139 ...

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