2.7V-4.2V input to 3.3V output Buck-Boost Converter
https://www.electronics-lab.com/2-7v-4-2v-input-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 frequency core material should […]
Benefits of Using A Buck-Boost Converter As A Pre-regulator For LDOs
https://www.electronics-lab.com/benefits-using-buck-boost-converter-pre-regulator-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 powered from a battery may have voltage brownout when they are subjected to a burst current […]
ISL91128 – A New Buck-Boost Regulator With I2C Interface From Intersil
https://www.electronics-lab.com/isl91128-new-buck-boost-regulator-i2c-interface-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 the need of feedback resistors and allows the […]
Basic Switching Voltage Regulator Tutorial
https://www.electronics-lab.com/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 inductor being useful! Switching regulators are incredibly efficient when designed […]
LT8391 – 60V Synchronous 4-Switch Buck-Boost LED Controller
https://www.electronics-lab.com/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 frequency operation, or internal ±15% triangle spread spectrum operation for low EMI. With 4V to […]
LTC3335 – Nanopower Buck-Boost DC/DC with Integrated Coulomb Counter
https://www.electronics-lab.com/ltc3335-nanopower-buck-boost-dcdc-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 provides eight pin-selectable output voltages with up to 50mA of output current. The coulomb […]