NCP3155BDR2G

更新时间： 2024-11-24 12:32:03

品牌	Logo	应用领域
安森美 - ONSEMI		稳压器
页数	文件大小	规格书
25页	419K
描述
3 A Synchronous Buck Regulator

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数据手册

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NCP3155BDR2G 数据手册

NCP3155A, NCP3155B

3 A Synchronous Buck

Regulator

The NCP3155 is a DC/DC synchronous switching regulator with

fully integrated power switches and full fault protection. The

switching frequency of 1 MHz and 500 kHz allows the use of small

filter components, which results in smaller board space and reduced

BOM cost. Available in a SOIC-8 package.

http://onsemi.com

Features

• Input Voltage Range from 4.7 V to 24 V

• Adjustable Output Voltage

SOIC−8 NB

CASE 751

• 1 MHz Operation (NCP3155A – 500 kHz)

• Internally Programmed 1.2 ms Soft−Start (NCP3155A – 2.4 ms)

• 0.8 1.0% Reference Voltage

MARKING DIAGRAM

• 48 mW HS−FET and 18 mW LS−FET

• Current Limit Protection

3155x

ALYW

• Transconductance Amplifier with External Compensation

• Input Undervoltage Lockout

• Output Overvoltage and Undervoltage Detection

• These are Pb−Free Devices

3155x = Specific Device Code

x = A or B

= Assembly Location

= Wafer Lot

Typical Applications

= Year

= Work Week

= Pb−Free Package

• Set Top Boxes

• DVD Drives and HDD

• LCD Monitors and TVs

• Cable Modems

PIN CONNECTIONS

• Telecom/Networking/Datacom Equipment

PGND

ISET

AGND

BST

4.7 V − 24 V

BST

COMP

VSW

OUT

(Top View)

PGND

NCP3155

FB1

ISET

ORDERING INFORMATION

COMP

AGND

†

Device

Package

Shipping

NCP3155ADR2G

SOIC−8 2500 / Tape & Reel

(Pb−Free)

NCP3155BDR2G

SOIC−8 2500 / Tape & Reel

(Pb−Free)

Figure 1. Typical Application Circuit

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

Publication Order Number:

February, 2012 − Rev. 3

NCP3155/D

12 3 4 5 6 7...25

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