DESCRIPTION
   A7442A is a High Efficiency, Dual Outputs Synchronous DC-DC Buck Converters with CV/CC modes, which can output up to 21 W in a wide range input from 6 V to 36 V. A7442A operates either in Constant Output Voltage (CV) mode or Constant Output Current (CC) mode and provides a separated current limit function for each channel. In order to achieve better EMI performance and comply with Apple’s MFi standard, the switching frequency was fixed at 130 kHz. A7442A is capable to operate in CC mode down to 3 V output voltage to protect the soft-short condition that is from the over current of the portable device

FEATURES
● Wide Range Input Supply Voltage from 6V - 40V
● Up to 4.2 A Output Current
● up to 94 % Efficiency
● 130 kHz Fixed Switching Frequency, Easy EMI
   design
● Internal Soft-start Circuitry
● Built-in Input OVP, UVLO
● Compensation for Output Cord Voltage Drop
● Adjustable Constant Current Limits
● Output Over Voltage Protection
● Cycle by cycle Peak current Limit
● Hiccup Mode Output UVP for Soft-short < 3 V
● Thermal Shutdown
● Available in PSOP8 Package

APPLICATION
● Car Charger
● Portable Charging Devices
● CV/CC regulation DC/DC converter