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IR3865MTRPBF Datasheet, PDF (1/22 Pages) International Rectifier – WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR | |||
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PD-97606
IR3865MPBF
SupIRBuckTM
10A HIGHLY INTEGRATED
WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
Features
ï§ Input Voltage Range: 3V to 21V
ï§ Output Voltage Range: 0.5V to 12V
ï§ Continuous 10A Load Capability
ï§ Constant On-Time Control
ï§ Compensation Loop not Required
ï§ Excellent Efficiency at Very Low Output Currents
ï§ Programmable Switching Frequency and Soft
Start
ï§ Thermally Compensated Over Current
Protection
ï§ Power Good Output
ï§ Precision Voltage Reference (0.5V, +/-1%)
ï§ Enable Input with Voltage Monitoring Capability
ï§ Pre-bias Start Up
ï§ Thermal Shut Down
ï§ Under/Over Voltage Fault Protection
ï§ Forced Continuous Conduction Mode Option
ï§ Very Small, Low Profile 4mm x 5mm QFN
Package
Description
The IR3865 SupIRBuckTM is an easy-to-use, fully
integrated and highly efficient DC/DC voltage
regulator. The onboard constant on-time
hysteretic controller and MOSFETs make IR3865
a space-efficient solution that delivers up to 10A
of precisely controlled output voltage.
Programmable switching frequency, soft start,
and thermally compensated over current
protection allows for a very flexible solution
suitable for many different applications and an
ideal choice for battery powered applications.
Additional features include pre-bias startup, very
precise 0.5V reference, over/under voltage shut
down, power good output, and enable input with
voltage monitoring capability.
Applications
ï§ Notebook and Desktop Computers
ï§ Game Consoles
ï§ Consumer Electronics â STB, LCD, TV, Printers
ï§ General Purpose POL DC-DC Converters
8/8/2012 Rev3.1
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