IR3742_15 Datasheet, PDF (1/26 Pages) International Rectifier – 20A Integrated PowIRstage

20A Integrated PowIRstage^®
IR3742
FEATURES
 Single input voltage range from 5V to 21V
 Wide input voltage range from 1.0V to 21V with
external V_CC bias voltage
 Integrated MOSFET drivers, Control FET,
Synchronous FET with Schottky diode,
bootstrap diode and the internal LDO
 Enable input with voltage monitoring capability
 Logic Level Tri-state PWM input
 Thermally compensated Over Current Indicator
 Open-drain over temperature and over current
fault indication
 Under-voltage Lockout of VCC/LDO_Out
 Operating temp: -40°C < T_j < 125°C
 Package size: 5mm x 6mm PQFN
 RoHS6 Compliant, lead-free and halogen-free
DESCRIPTION
The IR3742 integrated PowIRstage^® is a synchronous
buck gate driver IC with co-packed control and
synchronous MOSFETs and Schottky diode. It is
optimized internally for PCB layout, heat transfer and
driver/MOSFET timing. Custom designed gate driver
and MOSFET combination enables higher efficiency at
lower output voltages required by cutting edge ASIC,
FPGA and advanced controller.
Up to 1.5MHz switching frequency enables high
performance transient response, allowing
miniaturization of output inductors, as well as input and
output capacitors while maintaining industry leading
efficiency. The IR3742’s superior efficiency enables
smallest size and lower solution cost.
The IR3742 includes an over current indicator and over
temperature indicator in the event of a fault condition.
APPLICATIONS
 Computing Applications
 Set Top Box Applications
 Storage Applications
 Data Center Applications
 Distributed Point of Load Power Architectures
ORDERING INFORMATION
Base Part Number
IR3742
Package Type
PQFN 5 mm x 6 mm
IR3742
Standard Pack
Form
Quantity
Tape and Reel
4000
Orderable Part Number
IR3742MTRPBF
PBF Lead Free
TR
Tape and Reel
M
Package Type
1 www.irf.com © 2014 International Rectifier
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March 12, 2014