Q-pump an alternative to inductor charge pump boost regulator for low power and sleepy microcontroller from Silicon Labs. Link here (PDF) In the switch-mode power supply world, capacitor-based charge pumps (or Q-pumps) generally aren’t useful for heavy lifting, but work well in niche micropower applications where space is at a premium. They work best in […]
Tag Archives: charge pump
App note: A microwatt charge pump boosts 1 V to 1.8 V at 90% efficiency, providing “Always On” standby power for microcontrollers
Silicon Labs’ app note featuring low power boost for microcontrollers. Link here (PDF) Boosting the output voltage of common alkaline button-cells to at least 1.8 V needed by microcontrollers provides an “always on” standby power source sufficient for low-power oscillator interrupt/sleep state operation. Two ultralow power op amps are used in a charge pump configuration […]
App note: Charge pump DC-DC converters
Here is an app note from Maxim describing the theory behind, and implementation of charge pump based DC-DC converters. Charge pumps are often the best choice for powering an application that requires both low power and low cost. This application note discusses integrated charge pumps and explains how to calculate power dissipation in a charge […]
7400 competition entry: Charge pump voltage inverter
Daniel built a charge pump voltage inverter for the Open 7400 Logic competition. It uses the 74LV14 Schmitt trigger to provide a clocked signal, which is then connected to the inverted charge pump circuit to provide a -5V supply. Via the contact form.