The MAX8844 has two overvoltage-protected LDO outputs for supplying low-voltage-rated USB or charger inputs, while the MAX8845 has a single overvoltage-protected LDO output. This integration eliminates the need for external overvoltage-protection ICs. Both devices integrate a battery-pack detection circuit that disables the charger when the battery pack is absent.
The MAX8844 is packaged in a 3mm x 3mm, 14-pin TDFN, while the MAX8845 is available in a 3mm x 3mm, 12-pin TQFN package. Prices start at $1.42 (1000-up, FOB USA). User-friendly evaluation kits are available to speed designs.