Datasheet > NCP3012

NCP3012

更新时间： 2024-02-03 14:15:14

品牌	Logo	应用领域
安森美 - ONSEMI		控制器
页数	文件大小	规格书
26页	342K
描述
Synchronous PWM Controller

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NCP3012 数据手册

NCP3012

Synchronous PWM Controller

The NCP3012 is a PWM device designed to operate from a wide

input range and is capable of producing an output voltage as low as

0.8 V. The NCP3012 provides integrated gate drivers and an internally

set 75 kHz oscillator. The NCP3012 has an externally compensated

transconductance error amplifier with an internally fixed soft−start.

The NCP3012 incorporates output voltage monitoring with a Power

Good pin to indicate that the system is in regulation. The dual function

SYNC pin synchronizes the device to a higher frequency (Slave

Mode) or outputs a 180° out−of−phase clock signal to drive another

NCP3012 (Master Mode). Protection features include lossless current

limit and short circuit protection, output overvoltage and undervoltage

protection, and input undervoltage lockout. The NCP3012 is available

in a 14−pin TSSOP package.

http://onsemi.com

TSSOP−14

DT SUFFIX

CASE 948G

Features

• Input Voltage Range from 4.7 V to 28 V

• 75 kHz Operation

MARKING DIAGRAM

• 0.8 V $1.0% Reference Voltage

• Buffered External +1.25 V Reference

• Current Limit and Short Circuit Protection

• Power Good

3012

ALYWG

• Enable/Disable Pin

3012= Device Code

= Assembly Location

= Wafer Lot

• Input Undervoltage Lockout

• External Synchronization

• Output Overvoltage and Undervoltage Protection

• This is a Pb−Free Device

= Year

= Work Week

= Pb−Free Package

(Note: Microdot may be in either location)

Typical Applications

• Set Top Box

PIN CONNECTIONS

• Power Modules

VREF

VCC

BST

• ASIC / DSP Power Supply

VIN

HSDR

VSW

SYNC

BST

CIN

BST

VCC

HSDR

COMP

LSDR

GND

OUT

VSW

LSDR

GND

RFB1

(TOP VIEW)

VREF

SYNC

ISET

FB2

ORDERING INFORMATION

REF

COMP

†

Device

Package

Shipping

NCP3012DTBR2G TSSOP−14 2500 / Tape & Reel

(Pb−Free)

CREF

†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.

Figure 1. Typical Application Circuit

Publication Order Number:

May, 2010 − Rev. 0

NCP3012/D

12 3 4 5 6 7...26

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