© Semiconductor Components Industries, LLC, 2006

March, 2006 − Rev. 7

1

Publication Order Number:

NCP1402/D

NCP1402

200 mA, PFM Step−Up

Micropower Switching

Regulator

The NCP1402 series are monolithic micropower step−up DC to DC

converter that are specially designed for powering portable equipment

from one or two cell battery packs.These devices are designed to

startup with a cell voltage of 0.8 V and operate down to less than

0.3 V. With only three external components, this series allow a simple

means to implement highly efficient converters that are capable of up

Each device consists of an on−chip PFM (Pulse Frequency

Modulation) oscillator, PFM controller, PFM comparator, soft−start,

voltage reference, feedback resistors, driver, and power MOSFET

switch with current limit protection. Additionally, a chip enable

feature is provided to power down the converter for extended battery

life.

The NCP1402 device series are available in the Thin SOT−23−5

package with five standard regulated output voltages. Additional

voltages that range from 1.8 V to 5.0 V in 100 mV steps can be

manufactured.

Features

Typical Applications

ORDERING INFORMATION

SOT23−5

(TSOP−5, SC59−5)

SN SUFFIX

CASE 483

1

5

PIN CONNECTIONS AND

MARKING DIAGRAM

1

3

GND

CE

2

OUT

NC

4

LX

5

(Top View)

xxx = Marking

A

= Assembly Location

Y

= Year

W

= Work Week

G

= Pb−Free Package

See detailed ordering and shipping information in the ordering

information section on page 3 of this data sheet.

http://onsemi.com

(Note: Microdot may be in either location)