TPS22901

3.6V，0.5A，78mΩ 负载开关

The , TPS22902, and TPS22902B are small, low ON-resistance rON load switches with a controlled turnon. These devices contain a P-channel MOSFET that operates over an input voltage range of 1.0 V to 3.6 V. The switch is controlled by an on/off input ON, which can interface directly with low-voltage control signals. In the TPS22902 and TPS22902B, an 88-Ω on-chip load resistor is added for output quick discharge when the switch is turned off.

The TPS22901, TPS22902, and TPS22902B are available in a space-saving 4-pin DSBGA YFP with 0.4-mm pitch. These devices are characterized for operation over the free-air temperature range of –40°C to 85°C.

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Integrated P-Channel Load Switch

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Low Input Voltage: 1 V to 3.6 V

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ON-Resistance Typical Values

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rON = 78 mΩ at VIN = 3.6 V

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rON = 93 mΩ at VIN = 2.5 V

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rON = 109 mΩ at VIN = 1.8 V

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rON = 146 mΩ at VIN = 1.2 V

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500 mA Maximum Continuous Switch Current

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Quiescent Current: 82 nA at 1.8 V

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Shutdown Current: 44 nA at 1.8 V

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Low Control Input Thresholds Enable Use of

1.2-V, 1.8-V, 2.5-V, and 3.3-V Logic

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Controlled Slew Rate to Avoid Inrush Currents

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tr = 40 µs at VIN = 1.8 V TPS22901/2

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tr = 220 µs at VIN = 1.8 V TPS22902B

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Quick Output Discharge TPS22902/2B

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ESD Performance Tested Per JESD 22

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2000-V Human Body Model

A114-B, Class II

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1000-V Charged-Device Model C101

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Four-Pin Wafer-Chip-Scale DSBGA Package

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0.8-mm × 0.8-mm, 0.4-mm Pitch,

0.5-mm Height YFP