(Hong Kong)
Product Summary
The TPS61040DBVR is a high-frequency boost converter dedicated for small to medium LCD bias supply and white LED backlight supplies. The device is ideal to generate output voltages up to 28 V from a dual cell NiMH/NiCd or a single cell Li-Ion battery. The part can also be used to generate standard 3.3-V/5-V to 12-V power conversions. The TPS61040DBVR operates with a switching frequency up to 1 MHz. This allows the use of small external components using ceramic as well as tantalum output capacitors. Together with the thin SON package, the TPS61040DBVR gives a very small overall solution size. The TPS61040DBVR has an internal 400 mA switch current limit, offering lower output voltage ripple and allows the use of a smaller form factor inductor for lower power applications. The low quiescent current (typically 28 μA) together with an optimized control scheme, allows device operation at very high efficiencies over the entire load current range.
Parametrics
Absolute maximum ratings:(1)Supply voltages on pin VIN: -0.3V to 7V;(2)Voltages on pins EN, FB: -0.3V to VIN+0.3 V;(3)Switch voltage on pin SW: 30V;(4)Continuous power dissipation: See Dissipation Rating Table;(5)Operating junction temperature:–40℃ to 150℃;(6)Storage temperature: -65℃ to 150℃;(7)Lead temperature (soldering 10 seconds): 260℃.
Features
Features:(1)1.8-V to 6-V Input Voltage Range; (2)Adjustable Output Voltage Range up to 28 V; (3)400-mA Internal Switch Current; (4)Up to 1-MHz Switching Frequency; (5)28-μA Typical No-Load Quiescent Current; (6)1-μA Typical Shutdown Current; (7)Internal Soft Start; (8)Available in SOT23-5 and 2 x 2 x 0.8-mm SON Packages.
Diagrams
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 TPS61040DBVR |
Texas Instruments |
LED Lighting Drivers 28-V 400-mA Switch Boost Converter |
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TPS61040DBVRG4 |
Texas Instruments |
LED Lighting Drivers 28-V 400-mA Switch Boost Converter |
Data Sheet |
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