FPF1039: Low On-Resistance, Slew-Rate-Controlled Load Switch

The FPF1039 advanced load management switch targets applications requiring a highly integrated solution for disconnecting loads powered from DC Power Rail (<6 V) with stringent shutdown current targets and high load capacitances (up to 200 µF). The FPF1039 consists of slew-rate controlled low-impedance MOSFET switch (21 mΩ typical) and other integrated analog features. The slew-rate controlled turn-on characteristic prevents inrush-current and the resulting excessive voltage droop on power rails.

This device has exceptionally low shutdown current drain (<1 µA maximum) that facilitate compliance in very low standby power applications. The input voltage range operates from 1.2 V to 5.5 V DC to fulfill a wide range of applications in consumer, optical, medical, storage, portable, and industrial device power management.

Switch control is managed by a logic input (active HIGH) capable of interfacing directly with low-voltage control signal/GPIO with no external pull-up required. The device is packaged in advanced fully "green" 1 mm x 1.5 mm Wafer-Level Chip-Scale Packaging (WLCSP); providing excellent thermal conductivity, small footprint, and low electrical resistance for wider application usage.

Features

• 1.2 to 5.5 V Input Voltage Operating Range
• Typical R_DS(ON):
  • 20 mΩ at VIN=5.5 V
  • 21 mΩ at VIN=4.5 V
  • 37 mΩ at VIN=1.8 V
  • 75 mΩ at VIN=1.2 V
• 20 mΩ at V_IN=5.5 V
• 21 mΩ at V_IN=4.5 V
• 37 mΩ at V_IN=1.8 V
• 75 mΩ at V_IN=1.2 V
• Slew Rate/Inrush Control with t_R: 2.7 ms (Typical)
• 3 A Maximum Continuous Current Capability
• Output Discharge Function
• Low <1 µA Quiescent Current
• ESD Protected: Above 8 kV HBM, 1.5 kV CDM
• GPIO/CMOS-Compatible Enable Circuitry