GM66150_1 Datasheet, PDF (1/19 Pages) Gamma Microelectronics Inc. – 1.5A ULTRA LOW DROPOUT VOLTAGE REGULATORS

2009/5/18
GM66150 Series
1.5A ULTRA LOW DROPOUT VOLTAGE
REGULATORS
Description
Features
The GM66150 series of positive fixed and
‹
adjustable regulators is designed to provide up
to 1.5A output with high current, high accuracy,
and extremely low dropout voltage performance.
‹
These regulators feature 300 to 350mV (full
‹
load) dropout voltages, and very low ground
current. Although designed for high current loads,
‹
these devices are also useful in lower current,
‹
extremely low dropout critical systems, where the
minimal dropout voltage and ground current
‹
values are important characteristics.
‹
Ultra Low Dropout Voltage of 350mV @
1.5A with Low Ground Current
Fixed and Adjustable Voltage Versions
Output Current up to 1.5A
Guaranteed 1% Accurate Tolerance
Extremely Fast Transient Response
Reverse-battery Protection
"Load Dump" Protection
TheGM66150 is fully protected against over
‹ Zero-Current shutdown mode(5-pin
current, reversed input polarity (or reversed
versions) Error flag signals output
battery connection), reversed lead insertion, over
out-of-regulation (5-pin versions)
temperature operation, and transient voltage
spikes (positive or negative).
Five lead fixed voltage versions feature logic
level ON/OFF control and an error flag which
signals whenever the output falls out of
regulation.
For GM66151 and GM66152, the ENABLE pin
may be tied to V_IN if it is not required for ON/OFF
control. The GM66150 ser ies is available in
3-pin and 5-pin TO-220 and surface mount
SOT-223 and TO-263 packages.
Application
„ High Efficiency Linear Regulators
„ Battery Powered Equipment
„ Post Regulators for Switching Supplies _{„ Automotive Electronics}
High Efficiency "Green" Computer
Systems
Typical Application Circuits
5V 5%
GM66150-3.3
3.3V 1% @1.5A
47µF
V_IN
Fixed Voltage Version
R1
10µF
R2
V_OUT
V_OUT= 1.24V X [1 + (R1 /R2)]
22µF
Adjustable Voltage Version
www.gammamicro.com.tw ₁