gsc2129 E-Tech Electronics LTD, gsc2129 Datasheet

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gsc2129

Manufacturer Part Number
gsc2129
Description
Cmos Low Dropout Voltage Regulator
Manufacturer
E-Tech Electronics LTD
Datasheet
G
Description
The GSC2129 series of positive, linear regulators feature low quiescent 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.
In applications requiring a low noise, regulated supply, place a 1000pF capacitor between Bypass and Ground.
The GSC2129 is stable with an output capacitance of 4.7 F or greater.
Features
Applications
Package Dimensions
Typical Application Circuit
G
&Guaranteed 1.55A output
&Over-Temperature Shutdown
&Current Limiting
&Highly Accurate± 1.5%
&Low ‡ T emperature Coefficient
&Noise Reduction Bypass Capacitor
&Power-Saving Shutdown Mode
&Instrumentation
&Wireless Devices
&PC Peripherals
&Portable Electronics
&
&
Very Low Dropout Voltage
Battery Powered Widgets
S
S
C
C
2
2
1
1
2
2
9
9
C
C
M
M
O
O
S
S
L
L
o
o
w
w
D
D
Functional Block Diagram
r
r
o
o
p
p
REF.
o
o
C
D
A
B
E
F
u
u
t
t
V
V
o
o
Min.
5.80
4.80
3.80
0.40
0.19
0 C
l
l
Millimeter
t
t
a
a
g
g
e
e
Max.
6.20
5.00
4.00
0.90
0.25
R
R
8 C
e
e
g
g
u
u
l
l
REF.
a
a
M
H
K
G
L
J
ISSUED DATE :2005/06/21
REVISED DATE :2005/10/04B
t
t
o
o
r
r
Min.
0.10
0.35
1.35
Millimeter
0.375 REF.
1.27 TYP.
45 C
Max.
0.25
0.49
1.75
1/6

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gsc2129 Summary of contents

Page 1

... Description The GSC2129 series of positive, linear regulators feature low quiescent 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

Absolute Maximum Ratings Parameter Input Max Voltage Output Current Output Voltage Operating Ambient Temperature Junction Temperature Maximum Junction Temperature Thermal Resistance Internal Power Dissipation( T=100 : )* EDS Classification *Assuming a heat sink capable of twice times ( **Estimated Electrical ...

Page 3

... XXXX 9B252 GSC2129-25 XXXX 9B472 GSC2129-47 XXXX Characteristics Curve (T) + 2.0V” is provided at the VIN pin while maintaining a OUT Output Voltage Part Number 1.5V GSC2129-18 2.5V GSC2129-33 4.75V GSC2129-50 ISSUED DATE :2005/06/21 REVISED DATE :2005/10/04B Marking Output Voltage 9B182 1.8V XXXX 9B332 3.3V XXXX 9B502 5.0V XXXX ...

Page 4

ISSUED DATE :2005/06/21 REVISED DATE :2005/10/04B 115 : -45 : 4/6 ...

Page 5

ISSUED DATE :2005/06/21 REVISED DATE :2005/10/04B 5/6 ...

Page 6

... External Capacitors The GSC2129 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 ...

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