Car charging solution: CX8571 high current buck dcdc chip; CX8571 external MOS output adjustable 8A dual current limiting vehicle charging scheme; Recommended CX8571 for high current special materials in large factories for car chargers!

CX8571 external CX4520 dual N MOS capable of 4.2A

CX8571 external CX3203 dual N MOS capable of 4.8A

CX8571 external NCE4060K dual N MOS capable of 5-7A

Mature car charging solution in the market, CX8571 high current buck dcdc chip

CX8571 Overview:

CX8571 is a step-down PWM controller that can drive dual output 8A (4A+4A) load current. The design allows CX8571 to operate within a wide input voltage range of 9V to 40V. By lowering the logic level of the COMP/EN pin, the external shutdown function is achieved and the standby mode is entered. 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 DC/DC switching power supplies with limited current requirements. The chip is packaged in MSOP10 and requires fewer external devices.

Mature Market High Current 8A Car Charging Scheme - CX8571

CX8571 Features:

• 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)

• Built-in soft start time 3ms

• Fixed frequency 120KHz

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

• Duty cycle range: 0-95%

• One pin can achieve external compensation and shutdown control

• Ceramic capacitors can be used for output

• Built-in adjustable line voltage compensation

• MSOP10 Packaging

CX8571 is applied to:

• car charger 

• High brightness lighting

• Portable device power supply

• Universal DC/DC controller with current limiting function