Switching regulators make use of the energy storage properties of capacitors and inductors. A transistor, or switch, controls the charging and discharging. This method makes for an efficient regulator, but can be difficult to design.
Here are links to the products mentioned in AddOhms #18:
- LM3671 Buck Controller from Texas Instruments
- LM3671 Breakout board from Adafruit
- PowerBoost 1000 (boost converter) from Adafruit
- VERTER (buck-boost converter) from Adafruit
These are articles related to designing with switching regulators, which I found interesting.
- Voltage Regulator Tutorial and Basics from baldengineer.com
- MOSFET Switching Losses and Efficiency App note from Texas Instruments
- Layout Guidelines on EE Times (by a TI Apps Engineer)
- TI AN-1229 - Simple Switcher® PCB Layout Guidelines (TI)
This is part 2 on regulators. The first one, AddOhms #17, covered Linear Voltage Regulators.