ROHM BUS1DJC3GWZ-E2, PWM Controller, 5 V 4-Pin, UCSP

BUS1DJC3GWZ is low ON-Resistance high-side power switch P-channel MOSFETs. It comes in ultra-small package for portable digital applications. This switch IC operates on low input voltages ranging from 1.1V to 5.0V and exhibits a typical ON-resistance of 63 mΩ at 3.3V. The turn ON time of the device can be controlled to avoid inrush current.

P-MOSFET high-side load switch
Low input voltage
Ultra low bias current
Ultra low standby current
Built-in discharge circuit
Built-in soft start circuit
Built-in short circuit protection
Input logic : Active-High
Ultra small package
ESD protection