Datasheet > NCP1581

NCP1581

更新时间： 2024-11-20 05:52:03

品牌	Logo	应用领域
安森美 - ONSEMI		控制器
页数	文件大小	规格书
14页	316K
描述
High Frequency Synchronous Step Down PWM Controller for Tracking Applications

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NCP1581 数据手册

NCP1581

High Frequency Synchronous

Step Down PWM Controller

for Tracking Applications

The NCP1581 controller IC is designed to provide a simple

synchronous buck regulator for on−board DC to DC applications in a

14−pin SOIC. The NCP1581 is designed specifically for tracking

applications by providing the track input.

The NCP1581 operates at a fixed internal 400 kHz switching

frequency allowing the use of small external components. The device

features a programmable soft start set by an external capacitor,

under−voltage lockout and output under−voltage detection that latches

off the device when an output short is detected.

http://onsemi.com

MARKING

DIAGRAM

SOIC−14

D SUFFIX

CASE 751A

NCP1581G

AWLYWW

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

Features

• Power up Sequencing / Tracking

• Enable Input

PIN CONNECTIONS

• Internal 400 kHz Oscillator

• Programmable Soft−Start

• Fixed Frequency Voltage Mode

• Voltage Mode Adaptive Deadtime

• This is a Pb−Free Device

COMP

VCC

Applications

HDRV

PGND

LDRV

GND

• Tracking Applications

• Game Consoles

(Top View)

• Computing Peripheral Voltage Regulators

• Graphics Cards

• General DC to DC Converters

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 13 of this data sheet.

NCP1581

Figure 1. Typical Application Circuit

Publication Order Number:

January, 2010 − Rev. 0

NCP1581/D

12 3 4 5 6 7...14

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