General Description

The APL1541 is a low dropout three-terminal adjustable regulators with 1A output current capability. In order to obtain lower dropout voltage and faster transient response, which is critical for low voltage applications , the APL1541 has been optimized.

The device is available in an adjustable version and fixed output voltages of 3.3V, the output available voltage range is from 1.25~7.75V with an input supply below 12V. Dropout voltage is guaranteed at a maximum of 1.3V at 1A.

Features

• Guaranteed Output Voltage Accuracy within 2%

• Fast Transient Response

• Guaranteed Dropout Voltage at Multiple Currents

• Load Regulation : 0.1% Typ.

• Line Regulation : 0.03% Typ.

• Low Dropout Voltage : 1.1V Typ. at IOUT =1A

• Current Limit : 1A Typ. at TJ=125 °C

• On-Chip Thermal Limiting : 150 °C Typ.

• Adjustable Output : 1.25~7.75V

• Standard 8-pin SO Power Package

Applications

• Peripheral Cards

• Active SCSI Terminators

• Low Voltage Logic Supplies

• Post Regulator for Switching Power Supply