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UM1660 - Low Power DC/DC Boost Converter

Datasheet Summary

Description

The UM1660 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.

Features

  • LCD Bias Supply.
  • White LED Supply for LCD Backlights.
  • Digital Still Camera.
  • PDAs, Organizers and Handheld PCs.
  • Cellular Phones.
  • Standard 3.3V/5V to 12V Conversion.
  • 2.0V to 6.0V Input Voltage Range.
  • Adjustable Output Voltage up to 28V.
  • 400mA Internal Switch Current.
  • Up to 1MHz Switching Frequency.
  • 36µA Typical No Load Quiescent Current.
  • 1µA Maximum Shutdown Current.
  • Internal Soft-Start.
  • Available in Tiny SOT23-5 and DFN6 2.0.

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Datasheet preview – UM1660

Datasheet Details

Part number UM1660
Manufacturer UniON Semiconductor
File Size 540.71 KB
Description Low Power DC/DC Boost Converter
Datasheet download datasheet UM1660 Datasheet
Additional preview pages of the UM1660 datasheet.

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Full PDF Text Transcription

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UM1660 Low Power DC/DC Boost Converter UM1660S SOT23-5 UM1660DA DFN6 2.0×2.0 General Description The UM1660 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 UM1660 has an internal 400mA switch current limit, offering lower output voltage ripple.
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