Datasheet > NCP1402/D

NCP1402/D

更新时间： 2024-09-18 23:53:23

品牌	Logo	应用领域
其他 - ETC		转换器
页数	文件大小	规格书
20页	164K
描述
Micropower PFM Step-Up DC-DC Converter

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NCP1402/D 数据手册

NCP1402

Micropower PFM Step-Up

DC-DC Converter

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

start–up 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

http://onsemi.com

to 200 mA of output current at V = 2.0 V, V

= 3.0 V.

OUT

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.

TSOP–5

SN SUFFIX

CASE 483

The NCP1402 device series are available in TSOP–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.

PIN CONNECTIONS AND

MARKING DIAGRAM

Features

• Extremely Low Start–Up Voltage of 0.8 V

• Operation Down to Less than 0.3 V

OUT

• High Efficiency 85% (V = 2.0 V, V

= 3.0 V, 70 mA)

OUT

• Low Operating Current of 30 m A (V

= 1.9 V)

OUT

GND

• Output Voltage Accuracy ± 2.5%

xxx = Marking

• Low Converter Ripple with Typical 30 mV

• Only Three External Components Are Required

• Chip Enable Power Down Capability for Extended Battery Life

• Micro Miniature TSOP–5 Packages

= Year

= Work Week

(Top View)

Typical Applications

• Cellular Telephones

• Pagers

ORDERING INFORMATION

See detailed ordering and shipping information in the ordering

information section on page 3 of this data sheet.

• Personal Digital Assistants (PDA)

• Electronic Games

• Portable Audio (MP3)

• Camcorders

• Digital Cameras

• Handheld Instruments

Semiconductor Components Industries, LLC, 2001

Publication Order Number:

January, 2001 – Rev. 2

NCP1402/D

12 3 4 5 6 7...20

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