ISSUED DATE :2005/06/21
REVISED DATE :
GTM
CORPORATION
G5U2179
C M O S L o w D r o p o u t Vo l t a g e R e g u l a t o r
Description
The G5U2179 series of positive, linear regulators feature low quiescent current (45ꢀA 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 G5U2179 is stable with an output capacitance of 4.7ꢀF or greater.
Features
Functional Block Diagram
ԦVery Low Dropout Voltage
ԦGuaranteed 1.55A output
ԦOver-Temperature Shutdown
ԦCurrent Limiting
ԦHighly Accurate± 1.5%
ԦLowʳTemperature Coefficient
ԦNoise Reduction Bypass Capacitor
ԦPower-Saving Shutdown Mode
Applications
ԦBattery Powered Widgets
ԦInstrumentation
ԦWireless Devices
ԦPC Peripherals
ԦPortable Electronics
Package Dimensions
Millimeter
REF.
Millimeter
REF.
Min.
4.40
0.66
0.00
0.36
2.29
9.80
Max.
Min.
1.25
Max.
1.45
A
b
L4
c
4.80
0.91
0.30
0.5
c2
L2
D
e
L
ꢁ
1.27 REF.
8.6
9.0
1.70 REF.
14.6 15.8
0˚ 8˚
L1
E
2.79
10.4
Typical Application Circuit
G5U2179
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