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Buck Converter
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  • Model No. :

    CX8571

  • Withstand voltage :

    40V

  • Output voltage :

    ADJ

  • Output current :

    8A

  • Working mode :

    synchronous

  • Packaging :

    MSOP10
Free Sample
Datesheet

CATEGORY
  • product details

Summary:

CX8571 is a step-down PWM controller that can drive dual output 8A (4A+4A) load current, and is designed to operate within a wide input voltage range of 9V to 40V.

CX8571 achieves external shutdown function by lowering the logic level of the COMP/EN pin and entering standby mode. External compensation enables the feedback control loop to have good line voltage adjustment rate and load adjustment rate, and the peripheral design is flexible.

CX8571 can operate in CC (constant current output) or CV (constant voltage output) modes, and the overcurrent protection (OCP) current value can be set through external current detection resistance.

CX8571 is suitable for DCDC switching power supplies with limited current requirements. The chip is packaged in MSOP10 and requires fewer external components.

Characteristic:

  • Voltage input range: 9-40V

  • Output voltage accuracy (Vref=1.0V): ± 2.0%

  • Dual channel CC/CV mode

  • Dual channel external current limiting

  • Over temperature protection (OTP) with built-in soft start time of 3ms

  • Fixed frequency 120KHz

  • Input undervoltage protection (minimum 7V, typical 7.5V, maximum 8V)

  • Duty cycle range: 0-90%

  • One pin can achieve external compensation and shutdown control

  • Output can use ceramic capacitors

  • Built in adjustable line voltage compensation

  • MSOP10 packaging

Application:

  • Car charger

  • High brightness lighting

  • Portable device power supply


product tag :
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