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AAT3215 Datasheet, PDF (1/16 Pages) Advanced Analogic Technologies – 150mA CMOS High Performance LDO | |||
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AAT3215
150mA CMOS High Performance LDO
General Description
The AAT3215 MicroPower⢠Low Dropout Linear
Regulator is ideally suited for portable applications
where low noise, extended battery life and small
size are critical. The AAT3215 has been specifi-
cally designed for very low output noise perform-
ance, fast transient response and high power sup-
ply rejection ratio (PSRR), making it ideal for pow-
ering sensitive RF circuits.
Other features include low quiescent current, typi-
cally 95µA, and low dropout voltage which is typi-
cally less than 140mV at full output current. The
device is output short circuit protected and has a
thermal shutdown circuit for additional protection
under extreme conditions.
The AAT3215 also features a low-power shutdown
mode for extended battery life. A reference bypass
pin has been provided to improve PSRR perform-
ance and output noise, by connecting an external
capacitor from the AAT3215's reference output to
ground.
The AAT3215 is available in a space saving 5-pin
SOT-23 or 8-pin SC70-JW package in 8 factory
programmed voltages of 2.5V, 2.7V, 2.8V, 2.85V,
2.9V, 3.0V, 3.3V, or 3.5V.
Features
PowerLinearâ¢
⢠Low Dropout - 140mV at 150mA
⢠Guaranteed 150mA Output
⢠High accuracy ±1.5%
⢠95µA Quiescent Current
⢠High Power Supply Ripple Rejection
⢠70 dB at 1kHz
⢠50 dB at 10kHz
⢠Very low self noise 45µVrms/rtHz
⢠Fast line and load transient response
⢠Short circuit protection
⢠Over-Temperature protection
⢠Uses Low ESR ceramic capacitors
⢠Noise reduction bypass capacitor
⢠Shutdown mode for longer battery life
⢠Low temperature coefficient
⢠8 Factory programmed output voltages
⢠SOT-23 5-pin or SC70-JW 8-pin package
Applications
⢠Cellular Phones
⢠Notebook Computers
⢠Portable Communication Devices
⢠Personal Portable Electronics
⢠Digital Cameras
Typical Application
VIN
IN
OUT
VOUT
AAT3215
ON/OFF EN
BYP
GND
1µF
10nF
2.2µF
GND
GND
3215.2002.03.0.91
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