| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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139 pcs
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139 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The UM1660S from Union Semiconductor International Limited is a PFM controlled step-up DC-DC converter. It is designed to generate output voltages for small to medium LCD bias supplies and white LED backlight supplies from a single cell Li-Ion battery. The device can also be used for standard 3.3V/5V to 12V power conversions.
Key electrical specifications include an input voltage range of 2.0V to 6.0V, an adjustable output voltage up to 28V, and an internal switch current limit of 400mA. It operates with a switching frequency up to 1MHz. The typical no-load quiescent current is 36µA, with a maximum shutdown current of 1µA.
The UM1660S is available in a compact SOT-23-5 package, suitable for surface mount applications. Its operating temperature range is -40°C to 85°C.
This converter is ideal for applications such as LCD bias supplies, white LED backlights for LCDs, digital still cameras, PDAs, organizers, handheld PCs, and cellular phones.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.08 | $1.08 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 2V to 6V.
The output voltage is adjustable up to 28V.
The switching frequency is 1MHz.
The switch current limit is 400mA (from datasheet) or 450mA (from manufacturer page).
The operating temperature range is -40°C to 85°C.
The UM1660S is available in SOT-23-5 surface mount package.
The typical quiescent current is 36µA with no load.