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0.6/1.6 MHz Boost Converters With 22V Internal FET Switch in SOT-23

Availability: 14,089


Package | PIN: SOT-23 (DBV) | 5
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $1.82
10-24 $1.63
25-99 $1.52
100-249 $1.32
250-499 $1.22
500-749 $1.02
750-999 $0.84
1000+ $0.77


  • 22-V DMOS FET Switch
  • 1.6-MHz (X Option), 0.6-MHz (Y Option)
    Switching Frequency
  • Switch Current Up to 1.8 A
  • Wide Input Voltage Range (2.7 V to 14 V)
  • Low Shutdown Current (<1 µA)
  • 5-Lead SOT-23 Package
  • Uses Tiny Capacitors and Inductors
  • Cycle-by-Cycle Current Limiting
  • Internally Compensated

Texas Instruments  LM2731XMFX/NOPB

The LM2731 switching regulators are current-mode boost converters operating at fixed frequencies of 1.6 MHz (X option) and 600 kHz (Y option).

The use of SOT-23 package, made possible by the minimal power loss of the internal 1.8-A switch, and use of small inductors and capacitors result in the highest power density of the industry. The 22-V internal switch makes these solutions perfect for boosting to voltages up to 20 V.

These parts have a logic-level shutdown pin that can reduce quiescent current and extend battery life.

Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.