150VIN & VOUT Synchronous 4-Switch Buck-Boost Controller with Integrated Switching Bias Supply
IC

150VIN & VOUT Synchronous 4-Switch Buck-Boost Controller with Integrated Switching Bias Supply

Analog Devices announces the Power by Linear™ LTC3777, a 150V high efficiency (up to 99%) 4-switch synchronous buck-boost DC/DC controller, which operates from input voltages above, below or equal to the regulated output voltage. Its 4.5V to 150V input voltage range operates from...

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2.7V to 38V/500 mA low noise buck-boost charge pump
IC

2.7V to 38V/500 mA low noise buck-boost charge pump

Graham Prophet @ eedesignnewseurope.com discuss about Linear's low noise buck-boost converter LTC3246, able to produce 3.3V, 5V or ADJ regulated with an input range of 2.7V to 38V : LTC3246 is a low noise buck-boost charge pump with integrated watchdog timer capable of up to 500 mA...

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2.7V-4.2V input to 3.3V output Buck-Boost Converter
Power supply

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...

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Benefits of Using A Buck-Boost Converter As A Pre-regulator For LDOs
Power

Benefits of Using A Buck-Boost Converter As A Pre-regulator For LDOs

Intersil published a new white paper titled “Preventing Subsystem Brownouts in Mobile Devices“. This white paper demonstrates the benefit of using a buck-boost converter as a pre-regulator, which leads to better overall system efficiency and enhanced battery life. Systems...

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ISL91128 – A New Buck-Boost Regulator With I2C Interface From Intersil
ICPartsPower

ISL91128 – A New Buck-Boost Regulator With I2C Interface From Intersil

If your application requires a changing supply voltage, then this new IC is ideal for you. Intersil announced the ISL91128, a new buck-boost regulator. The new regulator has an I2C interface to select a broad set of features including output voltage range and slew rate. This eliminates...

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Basic Switching Voltage Regulator Tutorial
Power

Basic Switching Voltage Regulator Tutorial

James Lewis @ baldengineer.com discuss about switching regulator types and uses. A switching voltage regulator is one of my favorite circuits. In school, they were the first circuits I built where I understood how transistors worked. In fact, they were the first circuit I saw an...

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LT8391 – 60V Synchronous 4-Switch Buck-Boost LED Controller
IC

LT8391 – 60V Synchronous 4-Switch Buck-Boost LED Controller

The LT8391 is a synchronous 4-switch buck-boost LED controller that regulates LED current from input voltage above, below, or equal to the output voltage. The proprietary peak-buck peak-boost current mode control scheme allows adjustable and synchronizable 150kHz to 650kHz fixed...

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LTC3335 – Nanopower Buck-Boost DC/DC with Integrated Coulomb Counter
IC

LTC3335 – Nanopower Buck-Boost DC/DC with Integrated Coulomb Counter

The LTC®3335 is a high efficiency, low quiescent current (680nA) buck-boost DC/DC converter with an integrated precision coulomb counter which monitors accumulated battery discharge in long life battery powered applications. The buck-boost can operate down to 1.8V on its input and...

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