FSP2134 Datasheet, PDF (1/11 Pages) FOSLINK SEMICONDUCTOR CO.,LTD – 300MA HIGH PSRR LOW DROPOUT CMOS LINEAR REGULATOR

300MA HIGH PSRR LOW DROPOUT CMOS LINEAR REGULATOR
„ FEATURES
z Low dropout voltage: 180mV at 300mA (Vo=3.3V)
z Quiescent current: Typ. 65µA
z 2% Voltage Accuracy
z High PSRR: 70dB at 1KHz
z Thermal Shutdown
z Current Limiting
z Excellent line and load regulation
z Fast response
z Short circuit protection
z Low temperature coefficient
z Shutdown current: 0.5µA
z Space saving USP6 package
„ APPLICATIONS
z Cordless phones
z Cellular phones
z Bluetooth earphones
z Digital Cameras
z Portable electronics
z WLANs
z MP3 players
FSP2134
„ GENERAL DESCRIPTION
The FSP2134 series of positive voltage linear
regulators feature low quiescent current (Typ. 65µA)
and low dropout voltage, making them ideal for battery
powered applications. Their high PSRR make them
useful in applications where AC noise on the input
power supply must be suppressed. Space saving
USP6 package is attractive for portable and handheld
applications. They have both thermal shutdown and a
current limit feature to prevent device failure from
extreme operating conditions. They are stable with an
output capacitor of 2.2µF or greater.
„ PIN CONFIGURATION
(Bottom View)
„ PIN DESCRIPTION
Pin Number
1
2
3
4
5
6
„ BLOCK DIAGRAM
Pin Name
IN
NC
OUT
BYP
GND
EN
Pin Function
Input
Not connected
Output
Bypass pin, need a 10µF capacitor connected to GND
Ground
Chip Enable (active high)
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2007-7-4