300MA HIGH PSRR LOW DROPOUT CMOS LINEAR REGULATOR
FSP2134
FEATURES
Low dropout voltage: 180mV at 300mA (Vo=3.3V)
Quiescent current: Typ. 65µA
2% Voltage Accuracy
High PSRR: 70dB at 1KHz
Thermal Shutdown
Current Limiting
Excellent line and load regulation
Fast response
Short circuit protection
Low temperature coefficient
Shutdown current: 0.5µA
Space saving USP6 package
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.
APPLICATIONS
Cordless phones
Cellular phones
Bluetooth earphones
Digital Cameras
Portable electronics
WLANs
MP3 players
PIN CONFIGURATION
(Bottom View)
PIN DESCRIPTION
Pin Number
1
2
3
4
5
6
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)
BLOCK DIAGRAM
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2007-7-4