Datasheet > NW5139

NW5139

更新时间： 2024-11-28 12:56:39

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NW5139 数据手册

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NW5139

Technology

BOOST CONVERT CONTROL IC

GENERAL DESCRIPTION

The NW5139B is a boost topology switching regulator control IC for battery-used applications

field. The NW5139B includes a totem-pole single output stage for driving NPN transistor or

N-MOS, high precision reference (0.5V) for comparing output voltage with feedback amplifier,

an internal dead-time control for controlling the minimum duty cycle, programmable soft start

with short circuit protection function and logic level control for operating mode or standby

mode.

FEATURES

˙ Wide supply voltage operating range: 1.8 to 15V

˙ Reference voltage precision: 2%

˙ Low current consumption: Operation Mode 5.5mA

Standby-by Mode 1µA

˙ High speed oscillator frequency: 1MHz max.

˙ Programmable Soft Start function (SS)

˙ Short Circuit Protection function(SCP)

˙ Totem-pole output with adjustable on/off current

(for NPN transistors or n-channel MOSFET)

˙ Logic level control stand-by mode function

˙ Package: SOP8/TSSOP8/MSOP8

TSSOP8

TYPICAL APPLICATION

˙ Digital Camera

˙ PDA

M SO P8

˙ Portable Equipment

Rev0.2 Nov. 25, 2005

12 3 4 5 6 7...17

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