AAT3201 Datasheet, PDF (1/15 Pages) Advanced Analogic Technologies – 150mA OmniPower LDO Linear Regulator

AAT3201
150mA OmniPower™ LDO Linear Regulator
General Description
The AAT3201 PowerLinear OmniPower low dropout
(LDO) linear regulator is ideal for systems where a
low-cost solution is critical. This device features
extremely low quiescent current, typically 20µA.
Dropout voltage is also very low, typically 200mV.
The AAT3201 has an enable pin feature which,
when pulled low, will enter the LDO regulator into
shutdown mode, removing power from its load and
offering extended power conservation capabilities
for portable, battery-powered applications.
The AAT3201 has output short-circuit and over-
current protection. In addition, the device has an
over-temperature protection circuit that will shut
down the LDO regulator during extended over-cur-
rent events.
The AAT3201 is available in the Pb-free, space-sav-
ing 5-pin SOT23 package. The device is rated over
the -40°C to +85°C temperature range. Since only
a small, 1µF ceramic output capacitor is recom-
mended, the AAT3201 is a truly cost-effective volt-
age conversion solution.
The AAT3201 is similar to the AAT3200 with the
exception that it offers further power savings with
its enable pin.
Features
PowerLinear^™
• 20µA Quiescent Current
• Low Dropout: 200mV (typical)
• Guaranteed 150mA Output
• High Accuracy: ±2%
• Current Limit Protection
• Over-Temperature Protection
• Extremely Low Power Shutdown Mode
• Low Temperature Coefficient
• Factory-Programmed Output Voltages
— 1.8V to 3.5V
• Stable Operation With Virtually Any Output
Capacitor Type
• 5-Pin SOT23 Package
Applications
• Cellular Phones
• Consumer Electronics
Typical Application
INPUT
C_IN
1µF
GND
ENABLE
IN
OUT
AAT3201
EN
GND
OUTPUT
COUT
1µF
GND
3201.2006.01.1.2
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