ST L5973D

Step-DownБак4V36V2.5A

Overview

Description The L5973D is a step down monolithic power switching regulator with a minimum switch current limit of 2.5 A so it is able to deliver more than 2 A DC current to the load depending on the application conditions.

Features ■ 2.5 A internal switch ■ Operating input voltage from 4 V to 36 V ■ 3.3 V / (±2%) reference voltage ■ Output voltage adjustable from 1.235 V to 35 ■ Low dropout operation: 100 % duty cycle ■ 250 kHz internally fixed frequency ■ Voltage feedforward ■ Zero load current operation ■ Internal current limiting ■ Inhibit for zero current consumption ■ Synchronization ■ Protection against feedback disconnection ■ Thermal shutdown

Features

• Zero loads current operation

• Internal current limiting

• Inhibit for zero current consumption

• Output voltage adjustable from 1.235 V to 35 V

• Low dropout operation: 100 % duty cycle

• 250 kHz internally fixed frequency

• Voltage feedforwardSynchronization

• 2.5 A internal switch

• Operating input voltage from 4 V to 36 V

• 3.3 V / (±2%) reference voltage

• Synchronization

• Protection against feedback disconnection

• Thermal shutdown

Applications

• Networking: XDSL, modems, DC-DC modules

• Computer: printers, audio/graphic cards, optical storage, hard disk drive

• Consumer: STB, DVD, TV, VCR, car radio, LCD monitors

• Industrial: changers, car battery, DC-DC converters