GT2123 GTM [GTM CORPORATION], GT2123 Datasheet

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GT2123

Manufacturer Part Number
GT2123
Description
CMOS POSITIVE VOLTAGE REGULATOR
Manufacturer
GTM [GTM CORPORATION]
Datasheet
G
Description
The GT2123 of positive, linear regulators feature low quiescent current (35 A typ.) with low dropout voltage,
making them ideal for battery applications.
This rugged device has both Thermal Shutdown, and Current Fold-back to prevent device failure under the
“Worst” of operating conditions.
The SOT-26 version also features a “Power Good” detector, which pulls low when the output is out of
regulation. The GT2123 is stable with an output capacitance of 2.2 F or greater.
Features
Applications
Package Dimensions
Typical Application Circuit
G
&Guaranteed 300mA output
&Over-Temperature Shutdown
&Current Limiting
&Short Circuit Current Fold-back
&Highly Accurate± 1.5%
&Adjustable output voltages
&Power-saving Shutdown Mode
&Power Good Detector
&Low Temperature coefficient
&Instrumentation
&Wireless Devices
&PC Peripherals
&Portable Electronics
&Cordless Phones
&Electronic Scales
&
&
Very Low Dropout Voltage
Battery Powered Widgets
T
T
2
2
1
1
2
2
3
3
C
C
M
M
O
O
S
S
P
P
o
o
s
s
i
i
t
t
i
i
v
v
e
e
Functional Block Diagram
V
V
o
o
l
l
t
t
a
a
g
g
e
e
R
R
REF.
e
A
B
C
D
E
F
e
g
g
u
u
2.70
2.60
1.40
0.30
l
Min.
l
a
0
a
Millimeter
t
t
o
o
r
r
Max.
3.10
3.00
1.80
0.55
0.10
10°
ISSUED DATE :2005/01/24
REVISED DATE :
REF.
G
H
K
J
L
I
Dimensions
1.90 REF.
1.20 REF.
0.12 REF.
0.37 REF.
0.60 REF.
0.95 REF.
Millimeter
1/8

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GT2123 Summary of contents

Page 1

... Description The GT2123 of positive, linear regulators feature low quiescent current (35 A typ.) with low dropout voltage, making them ideal for battery applications. This rugged device has both Thermal Shutdown, and Current Fold-back to prevent device failure under the “Worst” of operating conditions. ...

Page 2

Absolute Maximum Ratings Parameter Input Max Voltage Output Current Input, Output Voltage Operating Ambient Temperature Junction Temperature Maximum Junction Temperature Thermal Resistance Power Dissipation( T=100 : ) EDS Classification Electrical Characteristics Ta=25 Parameter Symbol Output Voltage Output Current Current Limit ...

Page 3

... In this state, the quiescent current is less than 1 A. This pin behaves much like an electronic switch. Power Good The GT2123 includes the Power Good feature. When the output is not within D 10% of the specified voltage, it pulls low. This can occur under the following conditions: 1) Input Voltage too low. ...

Page 4

Characteristics Curve ISSUED DATE :2005/01/24 REVISED DATE : 4/8 ...

Page 5

ISSUED DATE :2005/01/24 REVISED DATE : 5/8 ...

Page 6

ISSUED DATE :2005/01/24 REVISED DATE : 6/8 ...

Page 7

External Resistor Divider Table Ohm) Vout 1.30 14.29 28.59 1.35 9.00 18.00 1.40 6.57 13.14 1.45 5.17 10.34 1.50 4.26 8.53 1.55 3.63 7.25 1.60 3.16 6.31 1.65 2.79 5.59 1.70 2.51 5.01 1.75 2.27 4.54 ...

Page 8

External Resistor Divider Table Ohm) Vout 3.35 0.57 1.14 3.40 0.56 1.11 3.45 0.54 1.09 3.50 0.53 1.06 3.55 0.52 1.04 3.60 0.51 1.02 3.65 0.50 1.00 3.70 0.49 0.98 3.75 0.48 0.96 3.80 0.47 0.94 ...

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