Datasheet > NCP1570

NCP1570

更新时间： 2024-11-20 04:37:59

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	279K
描述
Low Voltage Synchronous Buck Controller

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NCP1570 数据手册

NCP1570

Low Voltage Synchronous

Buck Controller

The NCP1570 is a low voltage buck controller. It provides the

control for a DC−DC power solution producing an output voltage as

low as 0.985 V over a wide current range. The NCP1570−based

solution is powered from 12 V with the output derived from a 5 V

supply. It contains all required circuitry for a synchronous NFET buck

http://onsemi.com

regulator using the V ™ control method to achieve the fastest possible

transient response and best overall regulation. The NCP1570 operates

at a fixed internal 200 kHz frequency and is packaged in an SO−8.

The NCP1570 provides undervoltage lockout protection, Soft Start,

Power Good with delay, and built−in adaptive non−overlap.

SO−8

D SUFFIX

CASE 751

Features

PIN CONNECTIONS AND

MARKING DIAGRAM

• 0.985 V ± 1.0% Reference

• V Control Topology

GND

• 200 ns Transient Response

• Programmable Soft Start

• Power Good

PWRGD

PGDELAY

COMP

GATE(L)

GATE(H)

• Programmable Power Good Delay

• 40 ns Gate Rise and Fall Times (3.3 nF Load)

• 50 ns Adaptive FET Non−Overlap Time

• Fixed 200 kHz Oscillator Frequency

• Undervoltage Lockout

= Assembly Location

WL, L = Wafer Lot

YY, Y = Year

WW, W = Work Week

• On/Off Control Through Use of the COMP Pin

• Overvoltage Protection through Synchronous MOSFETs

• Synchronous N−Channel Buck Design

• Dual Supply, 12 V Control, 5 V Power Source

ORDERING INFORMATION

Device

Package

Shipping

NCP1570D

98 Units/Rail

SO−8

NCP1570DR2

2500 Tape & Reel

Semiconductor Components Industries, LLC, 2006

Publication Order Number

July, 2006 − Rev. 5

NCP1570/D

12 3 4 5 6 7...14

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