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Enhanced single channel power switches

Quantity $ per Unit Savings
1 - 9$1.380%
10 - 24$1.2410%
25 - 99$1.1815%
100 - 249$0.9730%
250 - 499$0.9134%
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In stock
Parameter NameParameter Value
Supply Voltage Min Volt2.7
Supply Voltage Max Volt5.5
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
Packing TypeTape And Reel
RoHs compliantEcopack3
Package NameSO-8

The STMPS2141, STMPS2151, STMPS2161, STMPS2171 power distribution switches are intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. These devices incorporate 90 mΩ N-channel MOSFET high-side power switches for power distribution. These switches are controlled by a logic enable input.

When the output load exceeds the current limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant current mode. When continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts the switch off to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until a valid input voltage is present.

Key features
  • 90 mΩ high-side MOSFET switch
  • 500/1000 mA continuous current
  • Thermal and short-circuit protection with overcurrent logic output
  • Operating range from 2.7 to 5.5 V
  • CMOS and TTL compatible enable input
  • Undervoltage lockout (UVLO)
  • 12 μA maximum standby supply current
  • Ambient temperature range, -40 to 85 °C
  • ESD protection: 8 kV HBM
  • Reverse current protection
  • Fault blanking
  • UL recognized components (UL file number: E354278)