onsemi FPF1320UCX

The FPF1320/21 is a Dual-Input Single-Output (DISO) load switch consisting of two sets of slew -rate controlled, low on-resistance, P-channel MOSFET switches and integrated analog features. The slew -rate controlled turn-on characteristic prevents inrush current and the resulting excessive voltage droop on the power rails. The input voltage range operates from 1.5 V to 5.5 V to align with the requirements of low -voltage portable device power rails. FPF1320/21 performs seamless power-source transitions between two input power rails using the SEL pin with advanced break - before - make operation. FPF1320/21 has a TRCB function to block unwanted reverse current from output to input during ON/OFF states. The switch is controlled by logic inputs of the SEL and EN pins, which are capable of interfacing directly with low -voltage control signals (GPIO). FPF1321 has 65 Ω on - chip load resistor for output quick discharge when EN is LOW.

• DISO Load Switches
• Input Supply Operating Range: 1.5 V ~ 5.5 V
• R o N ~ 50 mΩ at V₁ₙ = 3.3 V Per Channel (Typical)
• True Reverse - Current Blocking (TRCB)
• Fixed Slew Rate Controlled 130 μs for < 1 μF Cₒᵤₜ
• I_SW: 1.5 A Per Channel (Maximum)
• Quick Discharge Feature on FPF1321
• Logic CMOS IO Meets JESD76 Standard for GPIO Interface and Related Power Supply Requirements
• ESD Protected:
  • Human Body Model: > 6 kV
  • Charged Device Model: > 1.5 kV
  • IEC 61000 - 4 - 2 Air Discharge: > 15 kV
  • IEC 61000 - 4 - 2 Contact Discharge: > 8 kV

• Smart phones / Tablet PCs
• Portable Devices Near Field Communication (NFC) Capable SIM Card Power Supply