MAX769 Description
The MAX769 is a plete buck/boost power supply and monitoring system for two-way pagers or other lowpower digital munications devices. Few external ponents are required. An 80mA output, synchronous-rectified, buck/boost DC-DC converter with a digitally controlled +1.8V to +4.9V output.
MAX769 Key Features
- An 80mA output, synchronous-rectified, buck/boost DC-DC converter with a digitally controlled +1.8V to +4.9V output. The
- 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 for beeper or vibrator drive An evaluation kit for th