IR HiRel Product Families

 

IR3842WM

Highly Efficient Integrated 4A Sync Buck Regulator

Obsolete

Benefits

Greater than 95% Maximum Efficiency

Wide Input Voltage Range 1.5V to 16V

Wide Output Voltage Range 0.7V to 0.9*Vin

Continuous 4A 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

Pin compatible option for 8A and 12A devices

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

Specifications

ParameterValue
Base Part StatusObsolete
CircuitSingle Output
IOUT (A)4
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 Pricing1.562
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 # IR3842WMTRPBF

Highly Efficient Integrated 4A Sync Buck Regulator

$1.561K Budgetary Pricing (USD):
Packaging OptionsPart NumberStatusStandard Pack Quantity
An IR3842WM shipped on Tape and ReelIR3842WMTR1PBFOBSOLETE750
An IR3842WM shipped on Tape and ReelIR3842WMTRPBFOBSOLETE4000
An IR3842WM sample quantityIR3842WMPBFOBSOLETE5

Package Support