LTC3554EUD#PBF
电池管理 Micropower USB Power Manager with Li-Ion Charger and Two Step Down Regulators
Easy power control is made possible with this false pin count power management IC by . This power management IC has an input voltage of 2.7 to 5.5 V. You can operate this at a switching frequency of 2590 kHz. This power management IC has an operating temperature range of -40 °C to 85 °C.