Datasheet > NCP1575

NCP1575

更新时间： 2024-11-19 21:54:31

品牌	Logo	应用领域
安森美 - ONSEMI		开关控制器
页数	文件大小	规格书
16页	113K
描述
Low Voltage Synchronous Buck Controller with Adjustable Switching Frequency

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中文翻译

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NCP1575 数据手册

NCP1575

Low Voltage Synchronous

Buck Controller with

Adjustable Switching

Frequency

http://onsemi.com

The NCP1575 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. It contains all required

MARKING

DIAGRAM

circuitry for a synchronous NFET buck regulator using the V t

control method to achieve the fastest possible transient response and

best overall regulation. The NCP1575 operates at a default switching

frequency of 200 kHz, but switching frequency is user−programmable

SOIC−8

D SUFFIX

CASE 751

1575

ALYW

with an additional resistor between R

and ground. This device

OSC

provides undervoltage lockout protection, soft−start, and built−in

adaptive nonoverlap and is assembled in an SOIC−8 package.

The NCP1575−based solution requires a bias supply of 12 V, and it

can convert from a bulk power supply ranging from 2 V to 12 V.

Conversion from bulk supplies greater than 7 V is best accomplished

by using an external doubler circuit to raise the enhancement voltage

for the external NFET switches.

= Assembly Location

= Wafer Lot

= Year

= Work Week

Features

PIN CONNECTIONS

• Pb−Free Packages are Available

• 0.980 V ±1.0% Reference Voltage

• V Control Topology

• 200 ns Transient Response

• Programmable Soft−Start

GND

OSC

GATE(L)

GATE(H)

COMP

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

• Adaptive FET Nonoverlap Time

• Default 200 kHz Oscillator Frequency (No External

Resistor Required)

ORDERING INFORMATION

†

• User−Programmable Oscillator Frequency (One External

Resistor Required)

Device

Package

Shipping

NCP1575D

98 Units/Rail

SOIC−8

• Undervoltage Lockout

NCP1575DG

SOIC−8

(Pb−Free)

• On/Off Control Through Use of the COMP Pin

• Overvoltage Protection through Synchronous MOSFETs

• Synchronous N−Channel Buck Design

NCP1575DR2

SOIC−8

2500 Tape & Reel

NCP1575DR2G

SOIC−8

(Pb−Free)

• “12 V Only” or Dual Supply Operation

†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.

Semiconductor Components Industries, LLC, 2004

Publication Order Number

November, 2004 − Rev. 6

NCP1575/D

12 3 4 5 6 7...16

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与NCP1575相关器件

型号	品牌	获取价格	描述	数据表
NCP1575/D	ETC	获取价格	Low Voltage Synchronous Buck Controller with Adjustable Switching Frequency
NCP1575D	ONSEMI	获取价格	Low Voltage Synchronous Buck Controller with Adjustable Switching Frequency
NCP1575DG	ONSEMI	获取价格	Low Voltage Synchronous Buck Controller with Adjustable Switching Frequency
NCP1575DR2	ONSEMI	获取价格	Low Voltage Synchronous Buck Controller with Adjustable Switching Frequency
NCP1575DR2G	ONSEMI	获取价格	Low Voltage Synchronous Buck Controller with Adjustable Switching Frequency
NCP1578	ONSEMI	获取价格	Synchronous Step-Down Controller with 50 mA Linear Regulator
NCP1578MNR2G	ONSEMI	获取价格	Synchronous Step-Down Controller with 50 mA Linear Regulator
NCP1579	ONSEMI	获取价格	Low Voltage Synchronous Buck Controller
NCP1579DR2G	ONSEMI	获取价格	Low Voltage Synchronous Buck Controller
NCP1580	ONSEMI	获取价格	Low Voltage Synchronous Buck Controller

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