Datasheet > SD02H0SK

SD02H0SK

更新时间： 2024-10-04 11:58:07

品牌	Logo	应用领域
英飞凌 - INFINEON		开关
页数	文件大小	规格书
21页	1324K
描述
12A Highly Integrated SupIRBuck IR3476 TM

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SD02H0SK 数据手册

12A Highly Integrated SupIRBuck^TM

IR3476

FEATURES

DESCRIPTION

The IR3476 SupIRBuck^TMis 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.

 Input Voltage Range: 3V to 27V

 Output Voltage Range: 0.5V to 12V

 Continuous 12A Load Capability

 Constant On-Time Control

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.

 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

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.

 Precision Voltage Reference (0.5V, +/-1%)

 Enable Input with Voltage Monitoring Capability

 Pre-bias Start Up

 Thermal Shut Down

APPLICATIONS

 Under/Over Voltage Fault Protection

 Forced Continuous Conduction Mode Option

 Small, Low Profile 5mm x 6mm QFN Package

 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

BASIC APPLICATION

95%

85%

75%

19VIN

12VIN

65%

8VIN

55%

45%

0.01

0.1

100

Load Current (A)

Figure 2: IR3476 Efficiency

Figure 1: IR3476 Basic Application Circuit

August 8, 2012 | ADVANCED DATASHEET | V2.1 | PD97603

12 3 4 5 6 7...21

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