FPF2496: IntelliMAX™ 28 V, Over-Voltage, Over-Current Protection Load Switch with Adjustable Current-Limit Control

The FPF2496 advanced load-management switch targets applications requiring a highly integrated solution. It disconnects loads powered from the DC power rail (<6 V) with stringent off-state current targets and high load capacitances (<100 µF). The FPF2496 consists of a slew-rate controlled low-impedance MOSFET switch (100 mΩ maximum) and integrated analog features. The slew-rate controlled turn-on characteristic prevents inrush current and the resulting excessive voltage droop on power rails. FPF2496 has over-voltage protection and over-temperature protection.

The FPF2496 has a True Reverse-Current Blocking (TRCB) function that obstructs unwanted reverse current from VOUT to VIN during ON and OFF states. The exceptionally low off-state current drain (<2 µA maximum) facilitates compliance with standby power requirements. The input voltage range operates from 3.5 V to 5.5 VDC to support a wide range of applications in consumer, optical, medical, storage, portable, and industrial-device power management systems. Switch control is managed by a logic input (active LOW) capable of interfacing directly with low-voltage control signal / General-Purpose Input / Output (GPIO) without an external pull-down resistor.

The device is packaged in advanced, fully “green” compliant, 1.21 mm x 1.21 mm, Wafer-Level Chip-Scale Package (WLCSP).

Features

• V_IN: 3.5 V~5.5 V
• 28 V Absolute Ratings at V_IN
• Current Capability: 2.5 A
• Adjustable Current Limit: (Typ.) 0.1 A~2.5 A with 10% Accuracy
• R_ON: Maximum 100 mΩ at 5 V_IN and 1 A I_OUT
• Input OVP: Min.=5.6 V, Typ.=5.8 V, Max.=6 V
• Output Discharge During Off State
• Open-Drain OVP on FLAGB
• Thermal Shutdown
• Under-Voltage Lockout (UVLO)
• True Reverse-Current Blocking (TRCB)
• Logic CMOS IO Meets JESD76 Standard for GPIO Interface and Related Power Supply Requirements