FPF3040: IntelliMAX™ 18 V-Rated Dual Input Single Output Power-Source-Selector Switch

The FPF3040 is a 18 V-rated Dual-Input Single-Output (DISO) load switch consisting of two channels of slew-rate-controlled, low-on-resistance, N-channel MOSFET switches with protection features. The slew-rate-controlled turn-on characteristic prevents inrush current and the resulting excessive voltage droop on the input power rails. The input voltage range operates from 4 V to 6.5 V at VBUS and from 4 V to 10.5 V at VIN to align with the needs of low-voltage portable device power rails.

VIN and VBUS have the over-voltage protection functionality of typical 12 V and 7.5 V, respectively, to avoid unwanted damage to system.

VIN and VBUS bi-directional switching allows reverse current from VOUT to VIN or VBUS for On-The-Go, (OTG) Mode. The switching is controlled by logic input EN and VIN_SEL is capable of interfacing directly with low-voltage control signal General-Purpose Input / Output (GPIO).

FPF3040 is available in 1.8 mm x 2.0 mm Wafer-Level Chip-Scale Package (WLCSP), 16-bump, 0.4 mm pitch.

Features

• Dual-Input, Single-Output Load Switch
• Input Supply Operating Range:
  • 4~10.5 V at VIN
  • 4~6.5 V at VBUS
• 4~10.5 V at V_IN
• 4~6.5 V at V_BUS
• Typical R_ON:
  • 95 mΩ at VIN=5 V
  • 70 mΩ at VBUS=5 V
• 95 mΩ at V_IN=5 V
• 70 mΩ at V_BUS=5 V
• Bi-Directional Switch for V_IN and V_BUS
• Slew Rate Controlled:
  • 50 µs at VIN for < 4.7 µF COUT
  • 90 µs at VBUS for < 4.7 µF COUT
• 50 µs at VIN for < 4.7 µF C_OUT
• 90 µs at VBUS for < 4.7 µF C_OUT
• Maximum ISW: 2 A Per Channel
• Break-Before-Make Transition
• Under-Voltage Lockout (UVLO)
• Over-Voltage Lockout (OVLO)
• Thermal Shutdown
• Logic CMOS IO Meets JESD76 Standard for GPIO Interface and Related Power Supply Requirements