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2R5TPE330M9 Datasheet(PDF) 1 Page - International Rectifier

Part # 2R5TPE330M9
Description  12A Highly Integrated SupIRBuck IR3476 TM
Download  21 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

2R5TPE330M9 Datasheet(HTML) 1 Page - International Rectifier

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August 8, 2012 | ADVANCED DATASHEET | V2.1 | PD97603
1
IR3476
12A Highly Integrated SupIRBuck
TM
FEATURES
 Input Voltage Range: 3V to 27V
 Output Voltage Range: 0.5V to 12V
 Continuous 12A Load Capability
 Constant On-Time Control
 Compensation Loop not Required
 Excellent Efficiency at Very Low Output Currents
 Programmable Switching Frequency and Soft Start
 Thermally Compensated Over Current Protection
 Power Good Output
 Precision Voltage Reference (0.5V, +/-1%)
 Enable Input with Voltage Monitoring Capability
 Pre-bias Start Up
 Thermal Shut Down
 Under/Over Voltage Fault Protection
 Forced Continuous Conduction Mode Option
 Small, Low Profile 5mm x 6mm QFN Package
BASIC APPLICATION
Figure 1: IR3476 Basic Application Circuit
DESCRIPTION
The IR3476 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
IR3476 a space-efficient solution that delivers up to 12A 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, under/over voltage shutdown, thermal
protection, power good output, and enable input with
voltage monitoring capability.
APPLICATIONS
 Notebook and Desktop Computers
 Consumer Electronics – STB, LCD, TV, Printers
 12V and 24V Distributed Power Systems
 General Purpose POL DC-DC Converters
 Game Consoles and Graphics Cards
EFFICIENCY
Figure 2: IR3476 Efficiency
45%
55%
65%
75%
85%
95%
0.01
0.1
1
10
100
Load Current (A)
12VIN
8VIN
19VIN


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