Datasheet > C1608X7R1E104K

C1608X7R1E104K

更新时间： 2024-10-03 12:42:47

品牌	Logo	应用领域
英飞凌 - INFINEON		/
页数	文件大小	规格书
22页	909K
描述
6A Highly Integrated SupIRBuck Input Voltage Range: 3V to 27V

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C1608X7R1E104K 数据手册

6A Highly Integrated SupIRBuck^TM

IR3473

FEATURES

DESCRIPTION

The IR3473 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

IR3473 a space‐efficient solution that delivers up to 6A of

precisely controlled output voltage.

• Input Voltage Range: 3V to 27V

• Output Voltage Range: 0.5V to 12V

• Continuous 6A 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

• Very Small, Low Profile 4mm x 5mm 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

90%

85%

80%

75%

VIN = 19V

70%

VIN = 12V

65%

VIN = 8V

60%

55%

50%

45%

0.01

0.1

Load Current (A)

Figure 1: IR3473 Basic Application Circuit

Figure 2: IR3473 Efficiency

March 27, 2013 | V2.2 | PD97601

12 3 4 5 6 7...22

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