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.