UM1665 Low Power DC/DC Boost Converter UM1665S SOT23-5 UM1665DA TDFN6 3.
0×3.
0 General Description The UM1665 is a PFM controlled step-up DC-DC converter with a switching frequency up to 1MHz.
The device is ideal to generate output voltage for small to medium LCD bias supplies and white LED backlight supplies from a single cell Li-ion battery.
The part can also be used to generate standard 3.
3V/5V to 12V power conversions.
With a high switching frequency of 1MHz, a low profile and small board area solution can be achieved using a chip coil and an ultra small ceramic output capacitor.
The UM1665 has an internal 400mA switch current limit, offering lower output voltage ripple.
The low quiescen...

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