Datasheet > NCP1571/D

NCP1571/D

更新时间： 2024-11-19 23:53:27

品牌	Logo	应用领域
其他 - ETC		控制器
页数	文件大小	规格书
16页	105K
描述
Low Voltage Synchronous Buck Controller

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NCP1571/D 数据手册

NCP1571

Low Voltage Synchronous

Buck Controller

The NCP1571 is a low voltage buck controller. It provides the

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

low as 0.980 V over a wide current range. The NCP1571–based

solution is powered from 12 V with the output derived from a 2–7 V

http://onsemi.com

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

regulator using the V

control method to achieve the fastest possible

transient response and best overall regulation. NCP1571 operates at a

fixed internal 200 kHz frequency and is packaged in an SO–8.

This device provides undervoltage lockout protection, Soft Start,

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

undervoltage lockout, the NCP1571 controller allows the power

supply output to drift down, allowing the load time to shut off. This

operation distinguishes the NCP1571 from other parts in its family.

SO–8

D SUFFIX

CASE 751

PIN CONNECTIONS AND

MARKING DIAGRAM

GND

Features

PWRGD

PGDELAY

COMP

• 0.980 V ± 1.0% Reference Voltage

• V Control Topology

• 200 ns Transient Response

GATE(L)

GATE(H)

• Programmable Soft Start

• Power Good

= Assembly Location

= Wafer Lot

• Programmable Power Good Delay

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

• Adaptive FET Non–Overlap Time

= Year

= Work Week

• Fixed 200 kHz Oscillator Frequency

• Undervoltage Lockout Holds Both Gate Outputs Low

• On/Off Control Through Use of the COMP Pin

• Overvoltage Protection through Synchronous MOSFETs

• Synchronous N–Channel Buck Design

• Dual Supply, 12 V Control, 2–7 V Power Source

ORDERING INFORMATION

Device

Package

Shipping

NCP1571D

98 Units/Rail

SO–8

NCP1571DR2

2500 Tape & Reel

Semiconductor Components Industries, LLC, 2002

Publication Order Number

March, 2002 – Rev. 3

NCP1571/D

12 3 4 5 6 7...16

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NCP1573/D	ETC	获取价格	Low Voltage Synchronous Buck Controller
NCP1573D	ONSEMI	获取价格	Low Voltage Synchronous Buck Controller
NCP1573DG	ONSEMI	获取价格	1.5A SWITCHING CONTROLLER, 250kHz SWITCHING FREQ-MAX, PDSO8, SOP-8
NCP1573DR2	ONSEMI	获取价格	Low Voltage Synchronous Buck Controller
NCP1573DR2G	ONSEMI	获取价格	1.5A SWITCHING CONTROLLER, 250kHz SWITCHING FREQ-MAX, PDSO8, SOP-8