Tag: Switching
2.7V-4.2V input to 3.3V output Buck-Boost Converter
This project shows a DC-DC buck boost circuit which can produce an output of 3.3V for an input of 2.7V to 4.2V , for example from a Li-on battery. The Circuit uses LTC3440 Buck boost IC which is a fixed frequency boost converter. To get high efficient results, inductor with high...
Continue ReadingLT8390 – 60V Synchronous 4-Switch Buck-Boost Controller with Spread Spectrum
The LT8390, is a synchronous buck-boost DC/DC controller that can regulate output voltage, and input or output current from input voltages above, below and equal to the output voltage. Its 4V to 60V input voltage range and 0V to 60V output voltage range are ideal for voltage...
Continue ReadingLTC3786 – Efficient boost controller takes the heat
Linear Technology has launched a higher-temperature 150°C version of its LTC3786 step-up DC/DC controller that boasts 98% efficiency. This H-grade device replaces the boost diode with an N-channel MOSFET for higher efficiency and reduced power loss. by Susan Nordyk @ edn.com: The...
Continue Reading$14.5 All-Purpose Switched-Mode Power Supply
Switching technology devices and integrated circuits are growing fast providing solutions that obtain power for different kind of circuits and devices, and they are proposed in different variations. A useful little known kind which is suitable for mixed supply systems is called...
Continue ReadingDual input, 2.5A step-down DC/DC achieves 95% efficiency
by Graham Prophet @ edn.com: LTC3126 is a 2.5A, 2.4V to 42V input, synchronous step-down switching regulator with integrated dual input PowerPath control. Its power stage topology enables operation from either of two independent power sources, with seamless, internally controlled...
Continue ReadingLTC3623 – Switching regulator doubles as Class-D audio amplifier
Clemens Valens @ elektormagazine.com discuss about LTC3623 switching regulator which can be used as Class-D Audio Amplifier. Sure thing, Elektor has published several designs of adjustable power supplies based on switching regulators, so we know that doing this properly in a...
Continue Reading48V/12V DC/DC for automotive dual-rails offers bidirectional power flows
LTC3871 is a 100V/30V bidirectional two phase synchronous buck or boost controller, for 48V/12V automotive dual battery systems; it provides bidirectional DC/DC control and battery charging between the 12V and 48V boardnets, operating in buck mode from the 48V bus to the 12V bus or in...
Continue ReadingLTC7851 – Quad Output, Multiphase Step-Down Voltage Mode DC/DC Controller with Accurate Current Sharing
The LTC7851 is a quad output multiphase synchronous step-down DC/DC controller with accurate current sharing between phases and differential output voltage sensing. This controller works in conjunction with external power train devices such as DrMOS and power blocks as well as...
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