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发布者:来自网络 发布时间:2014-8-19 阅读:4541次    关键字: DC-DC
FP6276B-500kHz 5A Synchronous PWM Boost Converter


FP6276B-500kHz 5A High Efficiency Synchronous PWM Boost Converter DataSheet

General Description
      The FP6276B is a current mode synchronous boost DC-DC converter with PWM/PSM control. Its PWM circuitry with built-in 50mΩ high side switch and 50mΩ low side switch make this regulator highly power efficient. The internal compensation network also minimizes as much as 6 external component counts. The non-inverting input of error amplifier connects to a 0.6V precision reference voltage and internal soft-start function can reduce the inrush current.

Features
 Current mode with PWM/PSM control
 Input Voltage range: 2.4V~4.5V
 Shutdown current: <1uA
 Oscillator frequency: 500KHz
 Reference voltage: 0.6V +/-2%
 Load disconnect during shutdown
 Cycle-by-cycle current limit
 Low RDS(on): Low side 50mΩ, High side50mΩ.
 Protection: OTP, Output OVP, SCP
 Internal Compensation
 Internal Soft-start: 7ms
 Package: SOP8(EP)

Applications
 Chargers
 Handheld Devices
 Portable Products
 Power Bank

 

FP6276B效率测试表

 

 

Vin

Iin

Vout

Iout

效率

 

3.0V

3.65A

4.95V

2A

90.4%

 

3.3V

3.33A

5.04V

2A

91.7%

 

3.7V

2.95A

5.05V

2A

92.5%

 

4.2V

2.56A

5.05V

2A

93.9%

 

 

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