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Micropower Step-up DC/DC Converter with 150mA Peak Current Limit

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


  • 2.2-V to 7-V Input Range
  • 150-mA, 0.7-Ω Internal Switch
  • Adjustable Output Voltage up to 20 V
  • Input Undervoltage Lockout
  • 0.01-µA Shutdown Current
  • Uses Small Surface-Mount Components
  • Small 5-Pin SOT-23 Package

Texas Instruments  LM2705MFX-ADJ/NOPB

The LM2705 is a micropower step-up DC-DC converter in a small 5-pin SOT-23 package. A current-limited, fixed-off-time control scheme conserves operating current, which results in high efficiency over a wide range of load conditions. The 21-V switch allows for output voltages as high as 20 V. The low 400-ns off-time permits the use of tiny, low-profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications. The LM2705 is ideal for LCD panels requiring low current and high efficiency as well as white-LED applications for cellular phone back-lighting. The LM2705 device can drive up to 3 white LEDs from a single Li-Ion battery. The low peak-inductor current of the LM2705 makes it ideal for USB applications.

For all available packages, see the orderable addendum at the end of the data sheet.