300MA ADJUSTABLE HIGH PSRR CMOS LINEAR REGULATOR
FSP2133
FEATURES
Low dropout voltage: 180mV at 300mA (Vo=3.3V)
Quiescent current: Typ. 65µA
±2% Voltage Accuracy
High PSRR: 67dB at 100Hz
Thermal Shutdown
Current Limiting
Excellent line and load regulation
Fast response
Short circuit protection
Low temperature coefficient
Shutdown current: 0.5µA
Space saving SOT23-5L package
GENERAL DESCRIPTION
The FSP2133 is a positive adjustable voltage linear
regulator features low quiescent current (Typ. 65µA)
and low dropout voltage, making it 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
SOT23-5L 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
(Top View)
1
2
3
5
4
PIN DESCRIPTION
Pin Number
1
2
3
4
5
Pin Name
VIN
GND
EN
ADJ
VOUT
Pin Function
Input
Ground
Chip Enable (active high)
Adjustable pin
Output
BLOCK DIAGRAM
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2007-4-19
FOSLINK [ FOSLINK SEMICONDUCTOR CO.,LTD ]
