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NCP1402

200 mA, PFM Step鈭扷p

Micropower Switching

Regulator

The NCP1402 series are monolithic micropower step鈭抲p 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鈭抲p 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

to 200 mA of output current at V

in

= 2.0 V, V

OUT

= 3.0 V.

Each device consists of an on鈭抍hip PFM (Pulse Frequency

Modulation) oscillator, PFM controller, PFM comparator, soft鈭抯tart,

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鈭?3鈭?

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

http://onsemi.com

5

1

SOT23鈭?

(TSOP鈭?, SC59鈭?)

SN SUFFIX

CASE 483

PIN CONNECTIONS AND

MARKING DIAGRAM

CE

OUT

NC

1

xxxYW

2

3

5

LX

鈥?/div>

Extremely Low Start鈭扷p Voltage of 0.8 V

Operation Down to Less than 0.3 V

High Efficiency 85% (V

in

= 2.0 V, V

OUT

= 3.0 V, 70 mA)

Low Operating Current of 30

mA

(V

OUT

= 1.9 V)

Output Voltage Accuracy

鹵

2.5%

Low Converter Ripple with Typical 30 mV

Only Three External Components Are Required

Chip Enable Power Down Capability for Extended Battery Life

Micro Miniature Thin SOT鈭?3鈭? Packages

Cellular Telephones

Pagers

Personal Digital Assistants (PDA)

Electronic Games

Portable Audio (MP3)

Camcorders

Digital Cameras

Handheld Instruments

4

GND

xxx = Marking

Y

= Year

W = Work Week

(Top View)

ORDERING INFORMATION

See detailed ordering and shipping information in the ordering

information section on page 3 of this data sheet.

Typical Applications

漏

Semiconductor Components Industries, LLC, 2003

1

November, 2003 鈭?Rev. 5

Publication Order Number:

NCP1402/D

標(biāo)準(zhǔn)包裝
3,000
類別
集成電路 (IC)
家庭
PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器
系列
-
類型
升壓（升壓）
輸出類型
固定
輸出數(shù)
1
輸出電壓
3.3V
輸入電壓
0.8 V ~ 5.5 V
PWM 型
電壓模式
頻率 - 開(kāi)關(guān)
200kHz
電流 - 輸出
200mA
同步整流器
無(wú)
工作溫度
-40°C ~ 85°C
安裝類型
表面貼裝
封裝/外殼
6-TSOP（0.059"，1.50mm 寬）5 引線
包裝
帶卷 (TR)
供應(yīng)商設(shè)備封裝
5-TSOP
其它名稱
NCP1402SN33T1OSTR

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