IRF IR3810MPBF Highly integrated 12a wide-input voltage, synchronous buck regulator Datasheet

PD-xxxxx
IR3810MPbF
SupIRBuck
TM
HIGHLY INTEGRATED 12A
WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
Features
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Wide Input Voltage Range 2.5V to 21V
Wide Output Voltage Range 0.6V to 12V
Continuous 12A Load Capability
600kHz High Frequency Operation
Programmable Over-Current-Protection
Hiccup Current Limit
Tracking capability for Memory Application
Precision Reference Voltage (0.6V)
Programmable Soft-Start
Pre-Bias Start-up
Thermal Protection
Thermally Enhanced Package
Small Size 5mmx6mm QFN
Pb-Free (RoHS Compliant)
Applications
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Distributed Point-of-Loads
Server and Workstations
Embedded Systems
Storage Systems
DDR Applications
Graphics Cards
Game Consoles
Computing Peripheral Voltage Regulators
Description
The IR3810 SupIRBuckTM is an easy-to-use, fully
integrated and highly efficient DC/DC regulator.
The onboard switching controller and MOSFETs
make the IR3810 a space-efficient solution,
providing accurate power delivery for low output
voltage applications.
The IR3810 operates from a 4.5V to 14V input
supply and generates an output voltage
adjustable from 0.6V to 0.80*Vin at loads up to
12A.
IR3810 can be configured for tracking
applications to generate termination voltage (VTT)
for memory applications.
A versatile regulator offering programmability of
start up time and current limit, the IR3810’s fixed
600kHz switching frequency allows the use of
small external components.
IR3810 also features important protection
functions, such as Pre-Bias startup, hiccup
current limit and thermal shutdown to provide the
required system level security in the event of fault
conditions.
Fig. 1. Typical application diagram
11/28/07
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