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L5973AD

STMicroelectronics
Part Number L5973AD
Manufacturer STMicroelectronics
Description 2A switch step down switching regulator
Published Mar 22, 2005
Detailed Description L5973AD 2 A switch step down switching regulator Features ■ 2 A internal switch ■ Operating input voltage from 4 V to ...
Datasheet PDF File L5973AD PDF File

L5973AD
L5973AD

Overview
L5973AD 2 A switch step down switching regulator Features ■ 2 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 V ■ Low dropout operation: 100% duty cycle ■ 500 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 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 Figure 1.
Test application circuit HSOP8 exposed pad Description The L5973AD is a step down monolithic power switching regulator with a switch current limit of 2 A so it is able to deliver more than 1.
5 A DC current to the load depending on the application conditions.
The ...


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