Datasheet > IR3801AMPBF

IR3801AMPBF

更新时间： 2024-11-11 05:39:27

品牌	Logo	应用领域
英飞凌 - INFINEON		/
页数	文件大小	规格书
21页	668K
描述
SupIRBuckTM

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数据手册

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IR3801AMPBF 数据手册

PD-60355

IR3801AMPbF

SupIRBuck

HIGHLY INTEGRATED 9A

WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR

Features

Description

•

Wide Input Voltage Range 2.5V to 21V

Wide Output Voltage Range 0.6V to 12V

Continuous 9A Load Capability

300kHz High Frequency Operation

Programmable Over-Current Protection

Hiccup Current Limit

The IR3801A SupIRBuck^TMis an easy-to-use,

fully integrated and highly efficient DC/DC

regulator. The onboard switching controller and

MOSFETs make the IR3801A a space-efficient

solution, providing accurate power delivery for

low output voltage applications.

Precision Reference Voltage (0.6V)

Programmable Soft-Start

The IR3801A operates from a single 4.5V to 14V

input supply and generates an output voltage

adjustable from 0.6V to 0.8*Vin at loads up to 9A.

Pre-Bias Start-up

Thermal Protection

Thermally Enhanced Package

Small Size 5mmx6mm QFN

Pb-Free (RoHS Compliant)

A versatile regulator offering programmability of

startup time, power good threshold and current

limit, the IR3801A’s fixed 300kHz switching

frequency allows the use of small external

components.

Applications

•

Game Consoles

The IR3801A also features important protection

functions, such as Pre-Bias startup, hiccup

current limit and thermal shutdown to provide the

required system level security in the event of fault

conditions.

Set-top Boxes

Graphics Cards

LCD TVs

Desktop PCs

Distributed Point-of-Loads

Embedded Systems

Computing Peripheral Voltage Regulators

Fig. 1. Typical application diagram

11/04/08

12 3 4 5 6 7...21

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