ISSUED DATE :2005/06/21
REVISED DATE :
G5U2179
Description
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
The G5U2179 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 G5U2179 is stable with an output capacitance of 4.7 F or greater.
Features
&
Low Dropout Voltage
Very
Functional Block Diagram
Applications
&
Battery Powered Widgets
&Instrumentation
&Wireless Devices
&PC Peripherals
&Portable Electronics
&Guaranteed 1.55A output
&Over-Temperature Shutdown
&Current Limiting
&Highly Accurate± 1.5%
&Low Temperature Coefficient
‡
&Noise Reduction Bypass Capacitor
&Power-Saving Shutdown Mode
Package Dimensions
REF.
A
b
L4
c
L1
E
Millimeter
Min.
Max.
4.40
4.80
0.66
0.91
0.00
0.30 B
0.36
0.5
2.29
2.79
9.80
10.4
REF.
c2
L2
D
e
L
Millimeter
Min.
Max.
1.25
1.45
1.27 REF.
8.6
9.0
1.70 REF.
14.6
15.8
0˚
8˚
Typical Application Circuit
1/6
GTM [ GTM CORPORATION ]
