150mA MicroPower鈩?LDO with PowerOK
General Description
The AAT3216 MicroPower鈩?Low Dropout Linear
Regulator is ideally suited for portable applications
where low noise, extended battery life and small
size are critical. The AAT3216 has been specifi-
cally designed for low output noise performance,
fast transient response and high power supply
rejection ratio (PSRR), making it ideal for powering
sensitive RF circuits.
Other features include low quiescent current, typi-
cally 70碌A(chǔ), and low dropout voltage which is typi-
cally less than 200mV at full output current. The
device is output short circuit protected and has a
thermal shutdown circuit for additional protection
under extreme conditions.
The AAT3216 also features a low-power shutdown
mode for extended battery life. A Power-OK open-
drain output signals when V
OUT
is in regulation.
The AAT3216 is available in a space saving 5-pin
SOT23 or 8-pin SC70-JW package in 12 factory
programmed voltages of 1.2V, 1.5V, 1.8V, 2.0V,
2.3V, 2.5V, 2.7V, 2.8V, 2.85, 3.0V, 3.3V, or 3.5V.
AAT3216
Features
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PowerLinear
鈩?/div>
SmartSwitch
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Low Dropout - 200mV at 150mA
Guaranteed 150mA Output
High accuracy 鹵1.5%
70碌A(chǔ) Quiescent Current
High Power Supply Ripple Rejection
Low self noise
PowerOK (POK) Output
Fast line and load transient response
Short circuit protection
Over-Temperature protection
Uses Low ESR ceramic capacitors
Shutdown mode for longer battery life
Low temperature coefficient
12 Factory programmed output voltages
SOT23 5-pin or SC70-JW 8-pin package
Preliminary Information
Applications
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Cellular Phones
Notebook Computers
Desktop Computers
Portable Communication Devices
Personal Portable Electronics
Digital Cameras
Typical Application
V
IN
IN
OUT
V
OUT
AAT3216
ON/OFF
EN
GND
1碌F
POK
100k
POK
2.2碌F
GND
GND
3216.2004.01.0.94
1
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