Overview
The FPF2495C, produced by onsemi, is an advanced load-management switch designed for applications that require a highly integrated solution. It is particularly suited for disconnecting loads powered from the DC power rail, especially in scenarios with stringent off-state current targets and high load capacitances. The device features a slew-rate controlled low-impedance MOSFET switch with a maximum on-resistance of 100 mΩ, along with integrated analog features. This design prevents inrush current and excessive voltage droop on power rails, ensuring stable and efficient power management.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VIN Input Voltage | 2.5 | 5.5 | V | |
| VOUT Absolute Ratings | 28 | V | ||
| Current Capability | 2 | A | ||
| Adjustable Current Limit | 0.05 | 0.1-1.5 | 2 | A |
| RON On Resistance | 70 | 100 | 105 | mΩ |
| Output OVP | 5.6 | 5.8 | 6 | V |
| IQ(OFF) Off Supply Current | 1 | 2 | µA | |
| IQ Quiescent Current | 65 | 100 | µA | |
| VIH ON Input Logic HIGH Voltage | 1.15 | V | ||
| VIL ON Input Logic LOW Voltage | 0.65 | V |
Key Features
- Slew-rate controlled low-impedance MOSFET switch to prevent inrush current and voltage droop.
- Over-voltage protection (OVP) and over-temperature protection.
- True Reverse-Current Blocking (TRCB) to prevent unwanted reverse current.
- Adjustable current limit set via an external resistor.
- Logic CMOS input compatible with GPIO, meeting JESD76 standard.
- Under-voltage lockout (UVLO) and thermal shutdown.
- Exceptionally low off-state current drain (<2 µA maximum).
- Package: 1.21 mm x 1.21 mm Wafer-Level Chip-Scale Package (WLCSP), fully “green” compliant.
Applications
- Smart Phones and Tablet PCs.
- Storage devices, DSLR cameras, and portable devices.
- Mobile handsets and wireless LAN cards.
- PMP/MP3 players and broadband access devices.
- Consumer, optical, medical, and industrial devices.
Q & A
- What is the input voltage range of the FPF2495C? The input voltage range is from 2.5 V to 5.5 VDC.
- What is the maximum current capability of the FPF2495C? The maximum current capability is 2 A.
- How is the current limit set in the FPF2495C? The current limit is set using an external resistor connected between the ISET and GND pins.
- What type of protection does the FPF2495C offer? The FPF2495C offers over-voltage protection, over-temperature protection, and true reverse-current blocking.
- What is the significance of the slew-rate controlled turn-on characteristic? The slew-rate controlled turn-on characteristic prevents inrush current and excessive voltage droop on power rails.
- What is the package type of the FPF2495C? The device is packaged in a 1.21 mm x 1.21 mm Wafer-Level Chip-Scale Package (WLCSP).
- How does the FPF2495C handle fault reporting? The device reports faults through an active LOW, open-drain output on the OC_FLAGB pin.
- What is the recommended operating temperature range for the FPF2495C? The recommended operating temperature range is from -40°C to 85°C.
- Does the FPF2495C support GPIO interface? Yes, the device supports logic CMOS input compatible with GPIO, meeting JESD76 standard.
- What is the purpose of the output capacitor in the FPF2495C application? The output capacitor prevents parasitic board inductance from forcing VOUT below GND and prevents reverse inrush current from creating voltage spikes.
