FPF2103

FAIRCHILD SEMICONDUCTOR  FPF2103  电源负载开关, IntelliMAX, 高压侧, 高电平有效, 1路输出, 5.5V, 0.3A, SOT-23-5

The is a Full Function Load Switch which provides full protection to systems and loads which may encounter large current conditions. This device contains a 0.125W current-limited P-channel MOSFET which can operate over an input voltage range of 1.8 to 5.5V. Switch control is by a logic input ON capable of interfacing directly with low voltage control signals. Each 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 FPF2103, 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.

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Controlled turn-on

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Undervoltage lockout

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Thermal shutdown

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<1µA shutdown current

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Auto restart

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Fast current limit response time

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3µs to moderate over currents

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20ns to hard shorts

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Fault blanking