SL40307A-R19KHF datasheet(1/53 Pages) IRF

部件名	SL40307A-R19KHF

功能描述	Single-Input Voltage, Synchronous Buck Regulator

PDF	53 Pages

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制造商	IRF [International Rectifier]

网页	http://www.irf.com

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Single-Input Voltage, Synchronous Buck Regulator

35A Highly Integrated SupIRBuck®

IR3846

1 www.irf.com

August 01, 2013

FEATURES

 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

 Enable input with Voltage Monitoring Capability

 Remote Sense Amplifier with True Differential

Voltage Sensing

 Thermally compensated current limit and Hiccup

Mode Over Current Protection

 Smart LDO to enhance efficiency

 Vp for tracking applications and sequencing

 Vref is available externally to enable margining

 External synchronization with Smooth Clocking

 Dedicated output voltage sensing for power good

indication and overvoltage protection which

remains active even when Enable is low.

 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 with tracking

 Small Size 5mm x 7mm PQFN

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

 Lead-free, Halogen-free and RoHS Compliant

DESCRIPTION

The IR3846 SupIRBuck

® is an easy-to-use, fully

integrated and highly efficient DC/DC regulator. The

onboard PWM controller and MOSFETs make IR3846

a space-efficient solution, providing accurate power

delivery for low output voltage and high current

applications.

IR3846

is

a

versatile

regulator

which

offers

programmability of switching frequency and current

limit while operating in wide input and output voltage

range.

The switching frequency is programmable from 300

kHz to 1.5MHz for an optimum solution.

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.

APPLICATIONS

 Netcom Applications

 Embedded Telecom Systems

 Server Application

 Distributed Point of Load Power Architectures

 Storage Applications

ORDERING INFORMATION

Base Part

Number

Package Type

Standard Pack

Orderable Part

Number

Form

Quantity

IR3846

PQFN 5mm x 7mm

Tape and Reel

750

IR3846MTR1PBF

IR3846

PQFN 5mm x 7mm

Tape and Reel

4000

IR3846MTRPBF

类似零件编号 - SL40307A-R19KHF

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