MAX8815A Description
The MAX8815A generates any output voltage from 3.3V to 5V from a 2-cell NiMH/NiCd or a single-cell Li+/Li polymer battery. The MAX8815A uses two modes of operation. The first mode of operation (normal) uses only 30µA (typ) quiescent current and allows the converter to switch only when needed at no load and light loads.
MAX8815A Key Features
- Up to 97% Efficiency with Internal Synchronous Rectifier
- Low 30µA Quiescent Current
- Guaranteed 500mA Output Current at VOUT = 5V from 1.8V Input
- Guaranteed 1A Output Current at 5V from 2.5V Input
- Low-Noise Constant Frequency Operation (FPWM Mode)
- 2MHz PWM Switching Frequency
- Preset (5V) or Adjustable Output
- Controlled Current in Soft-Start Limits Inrush Current
- True Shutdown Internal pensation Overload/Short-Circuit Protection 0.1µA Shutdown Current
- Thermal Shutdown