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L4970A - 10A SWITCHING REGULATOR

Description

The L4970A is a stepdown monolithic power switching regulator delivering 10A at a voltage variable from 5.1 to 40V.

Features

  • of the L4970A include reset and power fail for microprocessors, feed forward line regulation, soft start, limiting current and thermal protection. The device is mounted in a 15-lead multiwatt plastic power package and requires few external components. Efficient operation at switching frequencies up to 500KHz allows reduction in the size and cost of external filter components. June 2000 1/21 This is advanced information on a new product now in development or undergoing evaluation. Details are.

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Datasheet Details

Part number L4970A
Manufacturer STMicroelectronics
File Size 399.45 KB
Description 10A SWITCHING REGULATOR
Datasheet download datasheet L4970A Datasheet
Additional preview pages of the L4970A datasheet.

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Full PDF Text Transcription

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® L4970A 10A SWITCHING REGULATOR 10A OUTPUT CURRENT 5.1V TO 40V OUTPUT VOLTAGE RANGE 0 TO 90% DUTY CYCLE RANGE INTERNAL FEED-FORWARD LINE REGULATION INTERNAL CURRENT LIMITING PRECISE 5.1V ± 2% ON CHIP REFERENCE RESET AND POWER FAIL FUNCTIONS SOFT START INPUT/OUTPUT SYNC PIN UNDER VOLTAGE LOCK OUT WITH HYSTERETIC TURN-ON PWM LATCH FOR SINGLE PULSE PER PERIOD VERY HIGH EFFICIENCY SWITCHING FREQUENCY UP TO 500KHz THERMAL SHUTDOWN CONTINUOUS MODE OPERATION DESCRIPTION The L4970A is a stepdown monolithic power switching regulator delivering 10A at a voltage variable from 5.1 to 40V.
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