NCP1403 datasheet(1/20 Pages) ONSEMI

Part #	NCP1403

Description	15 V/50 mA PFM Step-Up DC-DC Converter

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Manufacturer	ONSEMI [ON Semiconductor]

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December, 2002 - Rev. 4

1

Publication Order Number:

NCP1403/D

NCP1403

15 V/50 mA PFM Step−Up

DC−DC Converter

The NCP1403 is a monolithic PFM step-up DC-DC converter.

This device is designed to boost a single Lithium or two cell

AA/AAA battery voltage up to 15 V (with internal MOSFET) output

for handheld applications. A pull-up Chip Enable feature is built

with this device to extend battery-operating life. Besides, the device

can also be incorporated in step-down, and

voltage-inverting

configurations. This device is available in space-saving TSOP-5

package.

Features

• 82% Efficiency at V

OUT = 15 V, IOUT = 50 mA, VIN = 5.0 V

• 78% Efficiency at V

OUT = 15 V, IOUT = 30 mA, VIN = 3.6 V

• Low Operating Current of 19 mA (No Switching)

• Low Shutdown Current of 0.3 mA

• Low Start-up Voltage of 1.3 V Typical at 0 mA

• Output Voltage up to 15 V with Built-in 16 V MOSFET Switch

• PFM Switching Frequency up to 300 kHz

• Chip Enable

• Low Profile and Minimum External Parts

• Micro Miniature TSOP-5 Package

Typical Applications

• LCD Bias

• Personal Digital Assistants (PDA)

• Digital Still Camera

• Handheld Games

• Hand-held Instrument

TSOP-5

CASE 483

SN SUFFIX

1

PIN CONNECTIONS AND

MARKING DIAGRAM

1

DCE = Device Marking

Y

= Year

W

= Work Week

(Top View)

http://onsemi.com

5

2

34

5

CE

FB

VDD

GND

LX

Device

Package

Shipping

ORDERING INFORMATION

NCP1403SNT1

TSOP-5

3000/Tape & Reel

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