MAX8903B
19-4502; Rev 1; 11/09 EVAALVUAAILTAIOBNLEKIT
2A, 1-Cell Li+ DC-DC Charger for USB and Adapter Power
General Description
The MAX8903B is an integrated 1-cell Li+ charger and Smart Power Selectorâ„¢ with dual (AC adapter and USB) power inputs.
The switch mode charger uses a high switching frequency to eliminate heat and allow for tiny external components.
It can operate with either separate inputs for USB and AC adapter power, or from a single input that accepts both.
All power switches for charging and switching the load between battery and external power are included on-chip.
No external
MOSFETs, blocking diodes, or current-sense resistors are required.
The MAX8903B features optimi...