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TPS22917

ACTIVE

5.5-V, 2-A, 80-mΩ , 10-nA leakage load switch adj. rise time and adj output discharge

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Data sheet

TPS22917

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Vin (min) (V) 1 Vin (max) (V) 5.5 Imax (A) 2 Ron (typ) (mΩ) 80 Shutdown current (ISD) (typ) (µA) 0.01 Quiescent current (Iq) (typ) (µA) 0.5 Soft start Adjustable Rise Time Current limit type None Features Quick output discharge, Reverse current protection Rating Catalog Operating temperature range (°C) -45 to 125 FET Internal Device type Load switches Function Inrush current control, Reverse current blocking
Number of channels 1 Vin (min) (V) 1 Vin (max) (V) 5.5 Imax (A) 2 Ron (typ) (mΩ) 80 Shutdown current (ISD) (typ) (µA) 0.01 Quiescent current (Iq) (typ) (µA) 0.5 Soft start Adjustable Rise Time Current limit type None Features Quick output discharge, Reverse current protection Rating Catalog Operating temperature range (°C) -45 to 125 FET Internal Device type Load switches Function Inrush current control, Reverse current blocking
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Input operating voltage range (VIN): 1 V to 5.5 V
  • Maximum continuous current (IMAX): 2 A
  • On-resistance (RON):
    • 5 VIN = 80 mΩ (typical)
    • 1.8 VIN = 120 mΩ (typical)
    • 1 VIN = 220 mΩ (typical)
  • Ultra-low power consumption:
    • ON state (IQ): 0.5 µA (typical)
    • OFF state (ISD): 10 nA (typical)
  • Smart ON pin pulldown (RPD):
    • ON ≥ VIH (ION): 10 nA (maximum)
    • ON ≤ VIL (RPD): 750 kΩ (typical)
  • Adjustable turn ON limits inrush current (tON):
    • 5-V tON = 100 µs at 72 mV/µs (CT = open)
    • 5-V tON = 4000 µs at 2.3 mV/µs (CT = 1000 pF)
  • Adjustable output discharge and fall time:
    • Optional QOD resistance ≥ 150 Ω (internal)
  • Always-ON true Reverse Current Blocking (RCB):
    • Activation current (IRCB): –500 mA (typical)
    • Reverse leakage (IIN,RCB): –1 µA (maximum)
  • Input operating voltage range (VIN): 1 V to 5.5 V
  • Maximum continuous current (IMAX): 2 A
  • On-resistance (RON):
    • 5 VIN = 80 mΩ (typical)
    • 1.8 VIN = 120 mΩ (typical)
    • 1 VIN = 220 mΩ (typical)
  • Ultra-low power consumption:
    • ON state (IQ): 0.5 µA (typical)
    • OFF state (ISD): 10 nA (typical)
  • Smart ON pin pulldown (RPD):
    • ON ≥ VIH (ION): 10 nA (maximum)
    • ON ≤ VIL (RPD): 750 kΩ (typical)
  • Adjustable turn ON limits inrush current (tON):
    • 5-V tON = 100 µs at 72 mV/µs (CT = open)
    • 5-V tON = 4000 µs at 2.3 mV/µs (CT = 1000 pF)
  • Adjustable output discharge and fall time:
    • Optional QOD resistance ≥ 150 Ω (internal)
  • Always-ON true Reverse Current Blocking (RCB):
    • Activation current (IRCB): –500 mA (typical)
    • Reverse leakage (IIN,RCB): –1 µA (maximum)

The TPS22917x device is a small, single channel load switch using a low leakage P-Channel MOSFET for minimum power loss. Advanced gate control design supports operating voltages as low as 1 V with minimal increase in ON-Resistance and power loss.

The Rise and Fall times can be independently adjusted with external components for system level optimizations. The timing capacitor (CT) and turn on time can be adjusted to manage inrush current without adding unnecessary system delays. The output discharge resistance (QOD) can be used to adjust the output fall time. Connect the QOD pin directly to the output for a fastest fall time or leave it open for the slowest fall time.

The switch ON state is controlled by a digital input that can interface directly with low-voltage control signals. The TPS22917 uses active high enable logic, while the TPS22917L uses active low. When power is first applied, a Smart Pulldown is used to keep the ON pin from floating until system sequencing is complete. After the ON pin is deliberately driven high (≥VIH), the Smart Pulldown (RPD) is disconnected to prevent unnecessary power loss.

The TPS22917x device is available in a leaded SOT-23 package (DBV) which allows visual inspection of solder joints. The device is characterized for operation over a temperature range of –40°C to 125°C.

The TPS22917x device is a small, single channel load switch using a low leakage P-Channel MOSFET for minimum power loss. Advanced gate control design supports operating voltages as low as 1 V with minimal increase in ON-Resistance and power loss.

The Rise and Fall times can be independently adjusted with external components for system level optimizations. The timing capacitor (CT) and turn on time can be adjusted to manage inrush current without adding unnecessary system delays. The output discharge resistance (QOD) can be used to adjust the output fall time. Connect the QOD pin directly to the output for a fastest fall time or leave it open for the slowest fall time.

The switch ON state is controlled by a digital input that can interface directly with low-voltage control signals. The TPS22917 uses active high enable logic, while the TPS22917L uses active low. When power is first applied, a Smart Pulldown is used to keep the ON pin from floating until system sequencing is complete. After the ON pin is deliberately driven high (≥VIH), the Smart Pulldown (RPD) is disconnected to prevent unnecessary power loss.

The TPS22917x device is available in a leaded SOT-23 package (DBV) which allows visual inspection of solder joints. The device is characterized for operation over a temperature range of –40°C to 125°C.
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Technical documentation

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Type Title Date
* Data sheet TPS22917x 1 V–5.5-V, 2-A, 80-mΩ Ultra-Low Leakage Load Switch datasheet (Rev. B) PDF | HTML 15 Dec 2021
E-book 11 Ways to Protect Your Power Path 03 Jul 2019
Application brief Making the Switch to an Integrated Load Switch 11 Jun 2019
Application note Integrated Load Switches Versus Discrete MOSFETs (Rev. A) 06 May 2019
Application note Load Switch Thermal Considerations (Rev. A) 11 Oct 2018
Application note Basics of Load Switches (Rev. A) 05 Sep 2018
User guide TPS22917 Load Switch Evaluation Module 05 Oct 2017
Application note Selecting a Load Switch to Replace a Discrete Solution 30 Apr 2017
Application note Timing of Load Switches 27 Apr 2017
Application note Fundamentals of On-Resistance in Load Switches 09 Jun 2016
Application note Quiescent Current vs Shutdown Current for Load Switch Power Consumption 30 Mar 2016
Application note Managing Inrush Current (Rev. A) 28 May 2015

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