Datasheet > GRM188F51H224ZA01D

GRM188F51H224ZA01D

更新时间： 2024-02-02 18:17:34

品牌	Logo	应用领域
英飞凌 - INFINEON		/
页数	文件大小	规格书
21页	884K
描述
12A Highly Integrated SupIRBuck Continuous 12A Load Capability

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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

March 27, 2013 | V2.2 | PD97603

12 3 4 5 6 7...21

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