IR HiRel Product Families

 

IR3843WM

Highly Efficient Integrated 2A Sync Buck Regulator

Obsolete

Benefits

Wide Input Voltage Range 1.5V to 16V

Wide Output Voltage Range 0.7V to 0.9*Vin

Continuous 2A Load Capability

Integrated Bootstrap-diode

High Bandwidth E/A for excellent transient performance

Programmable Switching Frequency up to 1.5MHz

Programmable Over Current Protection

PGood output

Lead-free, halogen-free and RoHS compliant

Hiccup Current Limit

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

Programmable Soft-Start

Enable Input with Voltage Monitoring Capability

Enhanced Pre-Bias Start-up

Seq input for Tracking applications

-40°C to 125°C operating junction temperature

Thermal Protection

Multiple current ratings in pin compatible footprint

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

Specifications

ParameterValue
Base Part StatusObsolete
CircuitSingle Output
IOUT (A)2
Input Voltage (V)1.5 - 16
MSL2
OCP OTP UVLO Pre-Bias Soft Start andPGOOD + EN + SEQ + OVD
Output Range (V)0.7 - 0.9*Vin
PackagePQFN / 5 x 6 D
Qual LevelIndustrial
Switch Freq (kHz)250 - 1500
Vout (Max)14.0
Vout (Min)0.7
RoHSYes
Halogen-FreeYes
1k Budgetary Pricing1.375
Base Station TelecomYes
Routers SwitchesYes
Server StorageYes
Design ToolYes
TechnologyPOL

Point-of-Load

POL DC-DC solutions include integrated regulators, discrete MOSFETs, power blocks, design tools and reference designs.

Learn More

Design Tools

Design Tools

SupIRBuck Design Tool

Schematic Capture, AC, Steady State, Transient Analysis, Thermal Analysis, BOM creation

Tool Introduction

PQFN / 5 x 6 D

Part # IR3843WMTRPBF

Highly Efficient Integrated 2A Sync Buck Regulator

$1.381K Budgetary Pricing (USD):
Packaging OptionsPart NumberStatusStandard Pack Quantity
An IR3843WM shipped on Tape and ReelIR3843WMTRPBFOBSOLETE4000
An IR3843WM sample quantityIR3843WMPBFOBSOLETE5
An IR3843WM shipped on Tape and ReelIR3843WMTR1PBFOBSOLETE750

Package Support