LM2731 0.6/1.6 MHz Boost Converters

National Semiconductor

Description

LM2731 0.6/1.6 MHz Boost Converters With 22V Internal FET Switch in SOT-23 July 2003 LM2731 0.6/1.6 MHz Boost Converters With 22V Internal FET Switc.
The LM2731 switching regulators are current-mode boost converters operating at fixed frequencies of 1.

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Datasheet Specifications

Part number: LM2731
Manufacturer: National Semiconductor
File Size: 528.20 KB
Datasheet: LM2731_NationalSemiconductor.pdf
Description: 0.6/1.6 MHz Boost Converters

Features

* n n n n n n n n n n 22V DMOS FET switch 1.6 MHz (“X”), 0.6 MHz (“Y”) switching frequency Low RDS(ON) DMOS FET Switch current up to 1.8A Wide input voltage range (2.7V
* 14V) Low shutdown current ( < 1 µA) 5-Lead SOT-23 package Uses tiny capacitors and inductors Cycle-by-cycle current limiting

Applications

* n n n n n White LED Current Source PDA’s and Palm-Top Computers Digital Cameras Portable Phones and Games Local Boost Regulator Typical Application Circuit 20059110 20059130 © 2003 National Semiconductor Corporation DS200591 www. national. com LM2731 Typical Application Circuit (Continued) 2

LM2731 Distributors

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0.6 1.6 MHz Boost Converters National Semiconductor

National Semiconductor LM2731-like datasheet