Power management circuits

Low dropout voltage regulators with accurate fixed or programmable output voltage levels and load current limits. May have additional over-temperature protection with or without auto recovery.
High-efficiency voltage regulators on switched inductors. DC-DC, AC-DC, and DC-AC types. DC-DC converters may provide output voltage lower than input (buck), higher than input (boost), or may work with a range of input voltages both higher and lower than output (buck-boost type). Circuits have accurate fixed or programmable output voltage levels and load current protection limits with all the required protections.
Switched-capacitor voltage boosters especially suitable for supplying power to a series string of Light Emitting Diodes (LEDs).
Battery charges for various battery types including constant-voltage and constant-current (CVCC) linear chargers for lithium-ion-polymer batteries with safe constant- or pulsed-precharge regime and all safety features for current, voltage, temperature and time.
Special types of power supply circuits such as envelope-tracking regulators for RF power amplifiers, or for high-fidelity audio circuits.