TPS22921
3.6V，2A，14mΩ 负载开关
, TPS22922, and TPS22922B are small, low rON load switches with controlled turnon. The TPS22921/2/2B contains a P-channel MOSFET that can operate over an input voltage range of 0.9 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 TPS22922 and in TPS22922B, a 65-Ω on-chip load resistor is added for output quick discharge when the switch is turned off. The rise time slew rate of the device is internally controlled in order to avoid inrush current: TPS22921 and TPS22922 feature a 30-µs rise time, whereas TPS22922B is 200 µs.
TPS22921, TPS22922, and TPS22922B feature low quiescent and shutdown currents and are available in space-saving 6-pin wafer-chip-scale packages DSBGA WCSP: YZP and YZT with 0.5-mm pitch and YFP with 0.4-mm pitch which make them ideal for portable electronics. The 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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- Input Voltage: 0.9 V to 3.6 V
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- ON-Resistance Typical Values
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- rON = 14 mΩ at VIN = 3.6 V
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- rON = 20 mΩ at VIN = 2.5 V
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- rON = 33 mΩ at VIN = 1.8 V
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- rON = 67 mΩ at VIN = 1.2 V
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- rON = 116 mΩ at VIN = 1.0 V
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- 2-A Maximum Continuous Switch Current
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- Quiescent Current:
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- Typical 78 nA at 1.8 V
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- Shutdown Current:
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- Typical 35 nA at 1.8 V
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- Low Threshold Control Input Enable the use of
1.2 V, 1.8 V, 2.5 V, or 3.3 V Logic
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- Controlled Slew Rate to Avoid Inrush Currents
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- tR = 30 µs at VIN = 1.8 V
TPS22921/2
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- tR = 200 µs at VIN = 1.8 V
TPS22922B
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- Quick Output Discharge TPS22922/2B
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- ESD Performance Tested Per JESD 22
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- 3000-V Human Body Model
A114-B, Class II
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- 1000-V Charged-Device Model C101
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- Six Terminal Wafer-Chip-Scale DSBGA Package
nominal dimensions shown - see _Mechanical,
Packaging, and Orderable Information_ for details
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- 0.9-mm × 1.4-mm, 0.5-mm Pitch,
0.5 mm Height YZP
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- 0.9-mm × 1.4-mm, 0.5-mm Pitch,
0.625 mm Height YZT
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- 0.8-mm × 1.2-mm, 0.4-mm Pitch,
0.5-mm Height YFP
