The NCP339A and NCP339B are very low Ron MOSFETs controlled by an external logic pin, allowing optimization of battery life, and portable device autonomy. Indeed, thanks to a current consumption optimization with PMOS structure, leakage currents are eliminated by isolating connected IC on the battery when not used.Reverse blocking control is automatically engage if OUT pin voltage is higher than IN pin voltage, eliminate leakages current from OUT to IN. NCP339B is available with output autodischarge function when part is disable.
Feature
1.2 V - 5.5 V operating range
19 m RDS(ON) at 4.5 V
DC current up to 3 A
Output Auto-discharge for the NCP339B version
Reverse blocking function from OUT to IN
Applications
Load Management
Tablets
Smartphones
The NCP339BFCT2G is a dual current mode high side power switch developed by onsemi. It features a wide input voltage range from 1.2V to 5.5V, a maximum output current rating of 3A, and a typical Rds(on) of 18mΩ. With a built-in reverse current blocking function and output auto-discharge feature, it is suitable for various applications such as automotive electronics, power supplies, and motor control. Housed in a BGA - WLCSP6 package, it offers reliable performance in a compact size.
Benefits
Wide 1.2 V - 5.5 V operating range, adaptable to different power sources
Low 19 mRDS(ON) at 4.5 V for efficient power transfer
Capable of handling DC current up to 3 A, suitable for driving various loads
Output Auto-discharge for the NCP339B version, enhancing safety and functionality
Reverse blocking function from OUT to IN, protecting the circuit from reverse current
Built-in protection against overcurrent, overtemperature, and short circuit conditions
Low quiescent current of 6μA, reducing power consumption in standby mode
Built-in diagnostic feature for fault feedback to the microcontroller
Application Examples
Overcurrent protection in power supplies
DC motor control circuits
Automotive electronic systems
Industrial automation and control
Battery management systems
Robotics
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
