FPF2148
FPF2148 Datasheet
FPF2148 Full Function Load Switch
| Part | Datasheet |
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FPF2148 |
FPF2148 (pdf) |
| PDF Datasheet Preview |
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| FPF2148 Full Function Load Switch FPF2148 Full Function Load Switch - to 5.5V Input Voltage Range - Controlled Turn-On - 200mA Current Limit Options - Undervoltage Lockout - Thermal Shutdown - <2µA Shutdown Current - Fast Current limit Response Time - 5µs to Moderate Over Currents - 30ns to Hard Shorts - Fault Blanking - Power Good Function - RoHS Compliant - PDAs - Cell Phones - GPS Devices - MP3 Players - Digital Cameras - Peripheral Ports - Hot Swap Supplies November 2008 The FPF2148 is a load switch which provides full protection to systems and loads which may encounter large current conditions. These devices contain a current-limited P-channel MOSFET which can operate over an input voltage range of 1.8-5.5V. Switch control is by a logic input ONB capable of interfacing directly with low voltage control signals. The part contains thermal shutdown protection which shuts off the switch to prevent damage to the part when a continuous over-current condition causes excessive heating. When the switch current reaches the current limit, the part operates in a constant-current mode to prohibit excessive currents from causing damage. For the FPF2148, a current limit condition will immediately pull the fault signal pin low and the part will remain in the constant-current mode until the switch current falls below the current limit. The minimum current limit is 200mA. The part is available in a space-saving 6 pin 2X2 MLP package. BOTTOM Pin 1 Ordering Information Part FPF2148 Current Limit [mA] 200/300/400 Current Limit Blanking Time [ms] Auto-Restart Time [ms] ONB Pin Activity Active LO 2008 Fairchild Semiconductor Corporation FPF2148 Full Function Load Switch Typical Application Circuit ON OFF VOUT FPF2148 PGOOD FLAGB TO LOAD Functional Block Diagram UVLO THERMAL SHUTDOWN CONTROL LOGIC FLAGB CURRENT LIMIT VOUT PGOOD FPF2148 Full Function Load Switch Pin Configuration ONB 6 1 PGOOD GND 5 2 VIN FLAGB 4 3 VOUT 2X2 MicroFET-6 Pin Description Name PGOOD VOUT FLAGB |
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