MAX847 Description
The MAX847 is a plete power-supply and monitoring system for two-way pagers or other low-power digital munications devices. It requires few external ponents. A 1-cell input, 80mA output, synchronous-rectified boost DC-DC regulator with a digitally controlled +1.8V to +4.9V output Three low-noise linear-regulator outputs Three DAC-controlled parators for softwaredriven 3-channel A/D conversion SPI™-patible serial...
MAX847 Key Features
- A 1-cell input, 80mA output, synchronous-rectified boost DC-DC regulator with a digitally controlled +1.8V to +4.9V outp
- Three low-noise linear-regulator outputs
- Three DAC-controlled parators for softwaredriven 3-channel A/D conversion
- SPI™-patible serial interface
- Reset and low-battery (LBO) warning outputs
- Charger for NiCd, NiMH, lithium battery, or storage capacitor for RF PA power or system backup
- Two 1.8 Ω (typical) serial-controlled open-drain MOSFET switches An evaluation kit for the MAX847 (MAX847EVKIT) is avail