NCP1410 datasheet(1/16 Pages) ONSEMI

Part #	NCP1410

Description	250 mA Sync-Rect PFM Step-Up DC-DC Converter with Low-Battery Detector

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Manufacturer	ONSEMI [ON Semiconductor]

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December, 2001 – Rev. 2

1

Publication Order Number:

NCP1410/D

NCP1410

250 mA Sync-Rect PFM

Step-Up DC-DC Converter

with Low-Battery Detector

NCP1410 is a monolithic micropower high frequency Boost

(step–up) voltage switching converter IC specially designed for

battery operated hand–held electronic products up to 250 mA loading.

It integrates Synchronous Rectifier for improving efficiency as well as

eliminating the external Schottky Diode. High switching frequency

(up to 600 kHz) allows low profile inductor and output capacitor being

used. Low–Battery Detector, Logic–Controlled Shutdown and

Cycle–by–Cycle Current Limit provide value–added features for

various battery–operated applications. With all these functions ON,

the device quiescent supply current is only 9.0

µA typical. This device

is available in space saving compact Micro8 package.

Features

• High Efficiency up to 92%

• Very Low Device Quiescent Supply Current of 9.0 mA Typical

• Allows use of Small Size Inductor and Capacitor

• Built–in Synchronous Rectifier (PFET) Eliminates One External

Schottky Diode

• High Switching Frequency (up to 600 kHz) Allows Use of Small

Size Inductor and Capacitor

• High Accuracy Reference Output, 1.19 V ± 0.6% @ 25°C, can

supply more than 2.5 mA when VOUT ≥ 3.3 V

• 1.0 V Startup at No Load Guaranteed

• Output Voltage from 1.5 V to 5.5 V Adjustable

• Output Current up to 250 mA @ V

in = 2.5 V, Vout = 3.3 V

• Logic–Controlled Shutdown

• Open Drain Low–Battery Detector Output

• 1.0 A Cycle–by–Cycle Current Limit

• Low Profile and Minimum External Parts

• Compact Micro8 Package

Typical Applications

• Personal Digital Assistant (PDA)

• Handheld Digital Audio Product

• Camcorders and Digital Still Camera

• Hand–held Instrument

• Conversion from One or Two NiMH or NiCd, or One Li–ion Cell to

3.3 V/5.0 V

Micro8

DM SUFFIX

CASE 846A

1

8

http://onsemi.com

PIN CONNECTIONS

1

FB

8 OUT

2

LBI

3

LBO

4

REF

7 LX

6 GND

5 SHDN

(Top View)

MARKING

DIAGRAM

A1 = Device Marking

A = Assembly Location

Y = Year

W = Work Week

A1

AYW

1

8

Device

Package

Shipping

ORDERING INFORMATION

NCP1410DMR2

Micro8

4000 Tape & Reel

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