IR3827M_15 Datasheet, PDF (1/44 Pages) International Rectifier – Single input voltage range from 5V to 21V

6A Highly Integrated SupIRBuck^TM Single-
Input Voltage, Synchronous Buck Regulator
IR3827
FEATURES
• Single input voltage range from 5V to 21V
• Wide input voltage range from 1.0V to 21V with
external V_CC bias voltage
• Output voltage range from 0.6V to 0.86% PVin
• Enhanced line/load regulation with feedforward
• Programmable switching frequency up to
1.2MHz
• Three user selectable soft-start time
• User selectable LDO output voltage
• Enable input with voltage monitoring capability
• Thermally compensated current limit with robust
hiccup mode over current protection
• Synchronization to an external clock
• Enhanced Pre-bias start-up
• Precise reference voltage (0.6V+/-0.6%)
• Open-drain PGood indication
• Optional power up sequencing
• Integrated MOSFET drivers and bootstrap diode
• Thermal Shut Down
• Monotonic Start-Up
• Operating temp: -40°C < T_j < 125°C
• Package size: 4mm x 5mm PQFN
• Lead-free, Halogen-free and RoHS6 Compliant
DESCRIPTION
The IR3827 SupIRBuck^TM is an easy-to-use, fully
integrated and highly efficient DC/DC regulator.
The onboard PWM controller and MOSFETs make
IR3827 a space-efficient solution, providing accurate
power delivery for low output voltage applications.
IR3827 is a versatile regulator which offers
programmable switching frequency and internally set
current limit while operating in wide range of input and
output voltage conditions.
The switching frequency is programmable from 300kHz
to 1.2MHz for an optimum solution. It also features
important protection functions, such as Pre-Bias
startup, thermally compensated current limit, over
voltage protection and thermal shutdown to give
required system level security in the event of fault
conditions.
APPLICATIONS
• Computing Applications
• Set Top Box Applications
• Storage Applications
• Data Center Applications
• Distributed Point of Load Power Architectures
ORDERING INFORMATION
Base Part Number
IR3827
IR3827
IR3827      
Package Type
PQFN 4 mm x 5 mm
PQFN 4 mm x 5 mm
Standard Pack
Form
Quantity
Tape and Reel
750
Tape and Reel
4000
Orderable Part Number
IR3827MTR1PBF
IR3827MTRPBF
PBF – Lead Free
TR/TR1 – Tape and Reel
M – PQFN Package
1 www.irf.com © 2013 International Rectifier
July 18, 2013