Datasheet > NCP1580

NCP1580

更新时间： 2024-11-08 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
12页	93K
描述
Low Voltage Synchronous Buck Controller

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NCP1580 数据手册

NCP1580

Low Voltage Synchronous

Buck Controller

The NCP1580 is a voltage mode PWM controller designed to

operate from a 5.0 V or 12 V supply and produce an output voltage as

low as 0.8 V. This 8−pin device provides an optimal level of

integration to reduce size and cost of the power supply. The NCP1580

has a fixed 350 kHz oscillator and soft−start function. The NCP1580

provides a 1.5 A floating gate driver design to drive N−Channel

MOSFETs in a synchronous configuration. Adaptive non−overlap

circuitry reduces switching losses by preventing simultaneous

conduction of both outputs. Protection features include thermal

shutdown and undervoltage lockout (UVLO). The NCP1580 is

available in an 8−pin SOIC package.

http://onsemi.com

MARKING

DIAGRAM

SOIC−8

D SUFFIX

1580

ALYW

CASE 751

Features

= Assembly Location

= Wafer Lot

= Year

• Input Voltage Range from 4.5 V to 13.2 V

• 350 kHz Internal Oscillator

• Boost Pin Operates to 26.5 V

• Voltage Mode PWM Control

• 0.8 V $1.5% Internal Reference Voltage

• Adjustable Output Voltage

• Internal Soft−Start

• Internal 1.5 A Gate Drivers

• Adaptive Non−Overlap Circuit

• 90% Max Duty Cycle

= Work Week

PIN CONNECTIONS

BST

PHASE

COMP

GND

• Input UVLO

(Top View)

• Overtemperature Protection

• Fully Specified over −40°C to 85°C

• Pb−Free Package is Available

ORDERING INFORMATION

†

Device

Package

Shipping

Applications

NCP1580DR2

SOIC−8

2500/Tape & Reel

• Graphics Cards

NCP1580DR2G

SOIC−8

(Pb−Free)

• Desktop Computers

• Servers/Networking

• DSP and FPGA Power Supply

• DC−DC Regulator Modules

†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.

BST

COMP

GND

OUT

SWN

Figure 1. Typical Application Diagram

Semiconductor Components Industries, LLC, 2005

Publication Order Number:

January, 2005 − Rev. 4

NCP1580/D

12 3 4 5 6 7...12

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