DC to DC Power Supplies (Converters)

DC to DC Power Supplies (Converters)

Buck Regulator has triple output design.

Offered in 3 x 4 mm DFN package, LTC3446 combines 1 A step-down dc/dc converter and two 300 mA VLDO regulators. This 1 A synchronous buck regulator IC operates from 2.5-5.5 V and has 2.25 MHz switching frequency. With independent enable pin for each supply, product generates output voltages as low as 0.8 V from buck regulator and 0.4 V for each VLDO. Synchronous buck delivers efficiencies to 90%,...

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Step-Down DC/DC Converter delivers up to 300 mA/channel.
DC to DC Power Supplies (Converters)

Step-Down DC/DC Converter delivers up to 300 mA/channel.

Using constant frequency current mode architecture, dual-channel Model LTC3547 operates from input voltage of 2.5-5.5 V with efficiencies as high as 96%, making it suited for Li-Ion/Polymer or multicell alkaline/NiCad/NiMH applications. Housed in 3 x 2 mm DFN package, synchronous buck regulator generates output voltages as low as 0.6 V. Switching frequency of 2.25 MHz enables use of tiny ceramic...

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DC to DC Power Supplies (Converters)

Synchronous Buck Controllers convert 22 V to 0.8 V.

With integrated 5 V LDO bias, Models SP6133 and SP6136 drive pair of external N-channel FETs switching at 300 kHz and 600 kHz frequencies, respectively, from single voltage rail for POL applications. Achieving efficiencies up to 97%, devices have input voltage from 4.5-24 V with duty cycles down to 3.5%, enabling direct conversion from high input voltage to low output voltage in single step....

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Miniature, 1 W DC/DC Converters feature 3 kV isolation.
DC to DC Power Supplies (Converters)

Miniature, 1 W DC/DC Converters feature 3 kV isolation.

Supplied in RoHS-compliant package measuring 20 x 8 x 10 mm, DCH01 series provides up to 85% efficiency and meets UL60950 specifications with EN55022 Class B EMC performance. Unregulated dc/dc converters offer point-of-load power conversion and ground loop elimination for noise-sensitive applications. With open-frame design, plug-in power modules operate from 5 V input and provide single voltages...

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DC/DC Controller does not require sense resistor.
DC to DC Power Supplies (Converters)

DC/DC Controller does not require sense resistor.

Featuring 550 kHz operating frequency, current-mode, step-up Model LTC3872 offers compact solution for converting 2.5-9.8 V input voltage to output voltage up to 60 V. When sense resistor is used, output voltage is limited only by external components. Low operating current of 250 Â-µA and shutdown current of 8 Â-µA extend battery life. Housed in thermally enhanced, 2 x 3 mm DFN package,...

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Step-up DC-DC Converter suits battery-powered products.
DC to DC Power Supplies (Converters)

Step-up DC-DC Converter suits battery-powered products.

Available in 6-pin SOT23 package, AS1325 features fully integrated synchronous rectifier as well as power on reset circuitry. It provides supply voltage of 1.5-3.5 V for 3.3 V output voltage or 1.5-5.0 V for 5.0 V output voltage. Supplied with under 2 V, product is capable of delivering 300 mA output current at 5.0 V output voltage or 185 mA at 3.3 V output voltage for portable products. IC...

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Step-Down DC-DC Controller draws only 40 -µA.
DC to DC Power Supplies (Converters)

Step-Down DC-DC Controller draws only 40 -µA.

With 4-60 V input range, current-mode Model LTC3824 can be programmed to fixed frequency from 100-600 kHz, or synchronized to external clock over same range for noise sensitive requirements. Output voltage is adjustable from 0.8 V to VIN. Housed in 10-pin, thermally enhanced MSOP package, controller offers 100% duty cycle and is suited for automotive applications where 4 V min input voltage...

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