参数资料
型号: IRDC3870
厂商: International Rectifier
文件页数: 1/20页
文件大小: 0K
描述: BOARD EVAL REG SUPIRBUCK DC/DC
产品变化通告: (EP) Parts Discontinuation 25/May/2012
标准包装: 1
系列: *
PD-97392
IR3870MPBF
Sup IR Buck
TM
10A HIGHLY INTEGRATED
WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
Features
Description
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Input Voltage Range: 3V to 26V
Output Voltage Range: 0.5V to 12V
Continuous 10A Load Capability
Constant On-Time control
Excellent Efficiency at very low output current levels
Gate drive charge pump option to maximize
efficiency at higher output current levels
The IR3870M SupIRBuck TM is an easy-to-use,
fully integrated and highly efficient DC/DC
voltage regulator. The onboard constant on time
hysteretic controller and MOSFETs make IR3870
a space-efficient solution that delivers up to 10A
of precisely controlled output voltage in 60 ° C
ambient temperature applications without airflow.
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Compensation Loop not Required
Programmable switching frequency, soft start, and
over current protection
Power Good Output
Precision Voltage Reference (0.5V, +/-1%)
Enable Input with Voltage Monitoring Capability
Pre-bias Start Up
Under/Over Voltage Fault Protection
Ultra small, low profile 5 x 6mm QFN Package
Programmable switching frequency, soft start,
and over current protection allows for a very
flexible solution suitable for many different
applications. The combination of the gate drive
charge pump option and constant on time control
allow efficiency optimization in the whole output
current range, making this device an ideal choice
for battery powered applications.
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Lead-free, halogen-free and RoHS compliant
Additional features include pre-bias startup, very
Applications
? Notebook and desktop computers
? Game consoles
precise 0.5V reference, over/under voltage shut
down, power good output, and enable input with
voltage monitoring capability.
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Consumer electronics - STB, LCD TV, Printers
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General purpose POL DC-DC Converters
Typical Notebook Application Circuit Diagram
6/2/2011
1
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