L5972

2A开关降压开关稳压器 2A SWITCH STEP DOWN SWITCHING REGULATOR

DESCRIPTION

The D is a step down monolithic power switch ing regulator with a minimum switch current limit of 2A so it is able to deliver more than 1.5A DC current to the load depending on the application conditions.

The output voltage can be set from 1.235V to 35V.

■2A INTERNAL SWITCH

■OPERATING INPUT VOLTAGE FROM 4.4V TO 36V

■OUTPUT VOLTAGE ADJUSTABLE FROM 1.235V TO 35V

■LOW DROPOUT OPERATION: 100% DUTY CYCLE

■250KHz INTERNALLY FIXED FREQUENCY

■VOLTAGE FEEDFORWARD

■ZERO LOAD CURRENT OPERATION

■INTERNAL CURRENT LIMITING

■PROTECTION AGAINST FEEDBACK DISCONNECTION

■THERMAL SHUTDOWN

APPLICATIONS:

■CONSUMER: STB, DVD, TV, VCR,CAR RADIO, LCD MONITORS

■NETWORKING: XDSL, MODEMS,DC-DC MODULES

■COMPUTER: PRINTERS, AUDIO/GRAPHIC CARDS, OPTICAL STORAGE, HARD DISK DRIVE

■INDUSTRIAL: CHARGERS, CAR BATTERY DC-DC CONVERTERS