National LM2742 Switching Regulator Datasheet

The LM2742 is a high-performance synchronous switching buck regulator controller that can control currents of 0.7A to 20A with up to 95% conversion efficiencies.


National LM2742 Switching Regulator Datasheet - cover page
Brand
National Semiconductor
Document type
Datasheet
Language
English
Pages
24
File format
PDF
File size
657 KB
Published
04 May, 2012
Updated
30 September, 2023
MD5 checksum
5120988674BB560D78E027E58ACE42EF

About this manual

The LM2742 is a high‑speed, synchronous switching regulator controller designed for input voltages from 1 V to 16 V and output voltages adjustable down to 0.6 V. It can handle load currents from 0.7 A to 20 A and offers a selectable switching frequency between 50 kHz and 2 MHz.

The document includes pin descriptions, absolute‑maximum ratings, electrical characteristics, typical performance graphs, and packaging information for the TSSOP‑14 package. Safety and regulatory notes are also provided.

What's inside

  • Pin Descriptions
  • Absolute Maximum Ratings
  • Electrical Characteristics
  • Typical Performance Graphs
  • Package Information
  • Soldering and Lead Temperature
  • Operating Temperature Range
  • ESD Rating

Specifications

Input voltage range1 V to 16 V
Load current range0.7 A to 20 A
Operating temperature range-40 °C to +125 °C
ESD rating2 kV
Lead temperature (soldering, 10 s)260 °C
Package typeTSSOP‑14
Shutdown pin internal pull‑up current20 pA

Frequently asked questions

What is the input voltage range of the LM2742?

The LM2742 operates with an input voltage from 1 V to 16 V.

What load current can the LM2742 handle?

It is intended to control currents ranging from 0.7 A up to 20 A.

What is the operating temperature range?

The device is rated for temperatures between –40 °C and +125 °C.

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