R1800K
OVERVIEW
R1800K is a power-storing buck DC/DC converter for a photovoltaic and vibration energy harvester. A low operating quiescent current allows a harvester to be used under a low-illumination environment, and it is suitable for an equipment with low power supplied from a harvester.
KEY BENEFITS
- Providing a low operating quiescent current (IQ 144 n A) and a high efficiency (approximately 90%@10 µA).
- A Control function that enables a maximum power optimizes a power supply from an energy harvester.
KEY SPECIFICATIONS
- Input Voltage Range: 2.0 V to 5.5 V
- Output Voltage Range: 2.0 V to 4.5 V
- Output Voltage Accuracy: ±3.0%
- Operating Quiescent Current:
Typ.144 n A (Ta = 25°C, at no load)
- Starting Power: 720 n W
- Reverse Current Protection (VIN ≥ 2.0 V)
- Accuracy of Maximum Power Voltage: 200 m V
APPLICATIONS
- Energy harvesting module of a photovoltaic and vibration energy harvester
PACKAGE
Efficiency (%)
TYPICAL CHARACTERISTICS
Efficiency vs. Output Current VSET = 3.3...
