L4970A 10A Switching Regulator – Datasheet

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The L4970A is a stepdown monolithic power switching regulator delivering 10A at a voltage variable from 5.1 to 40V. Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. 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 multi-watt plastic power package and requires few external components.

L4970 Pinout

L4970 Pin Configuration

Pin NoPin NameDescription
1ROS CResistor Operation Set Computing Pin
2COS C Capacitor Operation Set Computing Pin
3RESET INReset Input Pin
4RESET OUTReset Output Pin
5RESET DELAYReset Delay Input Pin
6BOOTSTRAPBootstrap Pin
7OUTPUTOutput Pin
8GNDGround Pin
9ViInput Voltage
10FRQ: COMPENSATIONFrequency Compensation Pin
11FEEDBACK INFeedback Input Pin
12SOFT STARTSoft Start Pin
13SYNCSynchronous Pin
14VREF 5.1VReference Voltage Pin 5.1
15V STARTStart Voltage Pin

L4970 Key Features

  • 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

You can download this datasheet for L4970A 10A Switching Regulator – Datasheet from the link given below: