TPS22901

• Integrated P-Channel Load Switch
• Low Input Voltage: 1 V to 3.6 V
• ON-Resistance (Typical Values)
  • r_ON = 78 mΩ at V_IN = 3.6 V
  • r_ON = 93 mΩ at V_IN = 2.5 V
  • r_ON = 109 mΩ at V_IN = 1.8 V
  • r_ON = 146 mΩ at V_IN = 1.2 V
• 500 mA Maximum Continuous Switch Current
• Quiescent Current: 82 nA at 1.8 V
• Shutdown Current: 44 nA at 1.8 V
• Low Control Input Thresholds Enable Use of 1.2-V, 1.8-V, 2.5-V, and 3.3-V Logic
• Controlled Slew Rate to Avoid Inrush Currents
  • t_r = 40 µs at V_IN = 1.8 V (TPS22901/2)
  • t_r = 220 µs at V_IN = 1.8 V (TPS22902B)
• Quick Output Discharge (TPS22902/2B)
• ESD Performance Tested Per JESD 22
  • 2000-V Human Body Model (A114-B, Class II)
  • 1000-V Charged-Device Model (C101)
• Four-Pin Wafer-Chip-Scale DSBGA Package
  • 0.8-mm × 0.8-mm, 0.4-mm Pitch, 0.5-mm Height (YFP)

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The TPS22901, TPS22902, and TPS22902B are small, low ON-resistance (r_ON) 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.