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High Side OR-ing FET Controller


Package | PIN: SOT-23-THN (DDC) | 6
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $2.06
10-24 $1.85
25-99 $1.72
100-249 $1.49
250-499 $1.38
500-749 $1.16
750-999 $0.95
1000+ $0.87


  • Available in Standard and AEC-Q100 Qualified
    Versions LM5050Q0MK-1 (up to 150°C TJ) and
    LM5050Q1MK-1 (up to 125°C TJ)
  • Wide Operating Input Voltage Range, VIN: 1 V to
    75 V (VBIAS required for VIN < 5 V)
  • 100-V Transient Capability
  • Charge Pump Gate Driver for External N-Channel
  • Fast 50-ns Response to Current Reversal
  • 2-A Peak Gate Turnoff Current
  • Minimum VDS Clamp for Faster Turnoff
  • Package: SOT-6 (Thin SOT-23-6)

Texas Instruments  LM5050MK-1/NOPB

The LM5050-1/-Q1 High Side OR-ing FET Controller operates in conjunction with an external MOSFET as an ideal diode rectifier when connected in series with a power source. This ORing controller allows MOSFETs to replace diode rectifiers in power distribution networks thus reducing both power loss and voltage drops.

The LM5050-1/-Q1 controller provides charge pump gate drive for an external N-Channel MOSFET and a fast response comparator to turn off the FET when current flows in the reverse direction. The LM5050-1/-Q1 can connect power supplies ranging from 5 V to 75 V and can withstand transients up to 100 V.