Datasheet > IR3841M_15

IR3841M_15

更新时间： 2024-09-17 01:21:31

品牌	Logo	应用领域
英飞凌 - INFINEON		/
页数	文件大小	规格书
32页	919K
描述
HIGHLY EFFICIENT INTEGRATED 8A SYNCHRONOUS BUCK REGULATOR

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中文翻译

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数据手册

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IR3841M_15 数据手册

PD60365

IR3841MPbF

HIGHLY EFFICIENT

SupIRBuck

INTEGRATED 8A SYNCHRONOUS BUCK REGULATOR

Features

Description

•

Greater than 96% Maximum Efficiency

Wide Input Voltage Range 1.5V to 16V

Wide Output Voltage Range 0.7V to 0.9*Vin

Continuous 8A Load Capability

The IR3841 SupIRBuck^TMis an easy-to-use, fully

integrated and highly efficient DC/DC

synchronous Buck regulator. The MOSFETs co-

packaged with the on-chip PWM controller make

Integrated Bootstrap-diode

IR3841

space-efficient solution, providing

High Bandwidth E/A for excellent transient

performance

accurate power delivery for low output voltage

applications.

•

Programmable Switching Frequency up to 1.5MHz

Programmable Over Current Protection (Hiccup)

PGood output

IR3841 is a versatile regulator which offers

programmability of start up time, switching

frequency and current limit while operating in

wide input and output voltage range.

Precision Reference Voltage (0.7V, +/-1%)

Programmable Soft-Start

Enable Input with Voltage Monitoring Capability

Enhanced Pre-Bias Start-up

The switching frequency is programmable from

250kHz to 1.5MHz for an optimum solution.

Seq input for Tracking applications

-40^oC to 125^oC operating junction temperature

It also features important protection functions,

such as Pre-Bias startup, hiccup current limit and

thermal shutdown to give required system level

security in the event of fault conditions.

Thermal Protection

Pin compatible option for 4A and 12A devices

5mm x 6mm Power QFN Package, 0.9 mm height

Lead-free, halogen-free and RoHS compliant

Applications

•

Netcom Applications

•

Server Applications

Computing Peripheral Voltage Regulators

General DC-DC Converters

Storage Applications

Embedded Telecom Systems

Distributed Point of Load Power Architectures

1.5V <Vin<16V

4.5V <Vcc<5.5V

Enable

Seq

Vin

Boot

Vcc

PGood

OCSet

Comp

PGnd

SS/ SD

Gnd

Fig. 1. Typical application diagram

06/18/09

12 3 4 5 6 7...32

中文翻译

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