The LTC3553 a micropower multifunction PMIC features a pin-selectable standby mode that reduces battery drain current to 12 µA while keeping all outputs in regulation. It integrates a USB-compatible PowerPath manager, a stand-alone battery charger, a synchronous buck regulator, an LDO linear regulator and a pushbutton controller in an 0.55-mm-high QFN package.
The PMIC targets personal navigation devices, media players and handheld medical and industrial devices. The device delivers up to 400-mA battery charge current from a USB port or a 5-V wall adapter input. It delivers up to 200-mA output current with a regulated output voltage that is adjustable down to 0.8 V. The LDO regulator provides up to 150–mA output current. Regulated output voltage is adjustable down to 0.8 V. ($2.25 ea/1,000 — available now.)
Typical Application
