Datasheet > GRM1885C1H161JA01D

GRM1885C1H161JA01D

更新时间： 2022-04-20 11:33:55

品牌	Logo	应用领域
英飞凌 - INFINEON		稳压器
页数	文件大小	规格书
51页	1606K
描述
25A Highly Integrated SupIRBuck Single-Input Voltage, Synchronous Buck Regulator

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25A Highly Integrated SupIRBuck^TM

Single-Input Voltage, Synchronous Buck Regulator

IR3447

FEATURES

DESCRIPTION

The IR3447 SupIRBuck^TMis an easy-to-use, fully

integrated and highly efficient DC/DC regulator. The

onboard PWM controller and MOSFETs make IR3447

a space-efficient solution, providing accurate power

delivery for low output voltage and high current

applications.

 Single 5V to 21V application

 Wide Input Voltage Range from 1.5V to 21V with

external Vcc

 Output Voltage Range: 0.6V to 0.86*PVin

 0.5% accurate Reference Voltage

 Enhanced line/load regulation with Feed-Forward

 Programmable Switching Frequency up to 1.5MHz

 Internal Digital Soft-Start

IR3447 is

versatile regulator which offers

 Enable input with Voltage Monitoring Capability

programmability of switching frequency and current

limit while operating in wide input and output voltage

range.

 Remote Sense Amplifier with True Differential

Voltage Sensing

 Thermally compensated current limit and Hiccup

Mode Over Current Protection

The switching frequency is programmable from 300

kHz to 1.5MHz for an optimum solution.

 Smart LDO to enhance efficiency

 External synchronization with Smooth Clocking

 Dedicated output voltage sensing for power good

indication and overvoltage protection which

remains active even when Enable is low.

It also features important protection functions, such as

Over Voltage Protection (OVP), Pre-Bias startup,

hiccup current limit and thermal shutdown to give

required system level security in the event of fault

conditions.

 Enhanced Pre-Bias Start up

 Body Braking to improve transient

 Integrated MOSFET drivers and Bootstrap diode

 Thermal Shut Down

 Post Package trimmed rising edge dead-time

 Programmable Power Good Output

 Small Size 5mm x 6mm PQFN

APPLICATIONS

 Operating Junction Temp: -40^oC<Tj<125^oC

 Lead-free, Halogen-free and RoHS Compliant

 Server Application

 Distributed Point of Load Power Architectures

 Set Top Box Application

 Power Supplies

ORDERING INFORMATION

Base Part

Standard Pack

Quantity

Orderable Part

Number

Package Type

Form

Number

IR3447

PQFN 5mm x 6mm

Tape and Reel

750

IR3447MTR1PBF

IR3447MTRPBF

4000

www.irf.com

July 17, 2013

12 3 4 5 6 7...51

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