NT3875A - Noveltek

NT3875A Wide Input Range CC/CV Step Down Converter

The NT3875 is a step down PWM converter with driving a output current up to 2A (NT3875A) a nd 1A (NT3875B) without a dditional tra nsistor. It is de signed to allow f or operating a wide supply voltage ra nge from 8V to 40V . The external shutdown function ca n be controlled by logic level to pull COMP/EN pin down, and then comes into standby mode. The exter.

Features

 VIN Operate with 8V ~ 40V Supply V oltage  V OUT Accura cy (Vref =1.2V) +1.0% Over Line Voltage  CC / CV Mode Control (Constant Current and Constant Voltage)  +/- 5% Current Limit Accuracy  Output Short Circuit Protection  Output Over Voltage Protection (~120%)  Over Temperature Prote ction  Internal Soft Start ~ 7ms  Fixed Frequency 120 KHz  UVLO Protection (min=6V, typ=7V, max=8V)  Duty Cycle Range (0~90%)  Single Pin to External Compensation and Shutdown Control  Integrated Power N-MOSFET
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 Rds_on=150m ohm for NT3875A Rds_on=240m ohm for NT3875B Applications  Car Charger .