Nisshinbo R1801K Power-Storing Buck DC-DC Converter
Nisshinbo R1801K Power-Storing Buck DC-DC Converters are optimized for photovoltaic energy harvesting applications. The R1801K offers an ultra-low 200nA quiescent current (IQ), a high 80% efficiency at 10μA, and a minimum starting power of 1.00μW (VIN=4.0V, VOUT=3.0V). This device also features a Maximum Power Point Control (MPPC) function and a reverse current protection function. The former function optimizes the efficiency of power supply from a photovoltaic element, and the latter cuts off the reverse-current path when power is off to prevent power loss caused by reverse current.
The R1801K also has a Power Good (PG) function, which monitors the output voltage. The output voltage and the MPPC voltage are adjustable by pin setting, enabling designers the flexibility to either set a default voltage or to vary the MPPC voltage according to the actual environment.
The Nisshinbo R1801K DC-DC Converter is offered in a compact 3.0mm x 2.7mm DFN(PLP)2730-12 package, well suited for high-density mounting.
Features
- 2.3V to 5.5V input voltage range
- 2.3V to 4.5V output voltage range
- 2.7V to 5.3V MPPC voltage range
- ±3.0% output voltage accuracy
- 200nA typical operating quiescent current (Ta =25°C, at no load) at VIN = 4.0V, VOUT = 3.0V
- 1µW starting power at VIN = 4.0V, VOUT = 3.0V
- VIN ≥2.0V reverse current protection
- Adjustable MPPC, adjustable output voltage
- PG Function
- -40°C to +85°C operating temperature range
- 3.0mm x 2.7mm DFN(PLP)2730-12 package
- Halogen-free and RoHS compliant
Applications
- Photovoltaic energy harvesters
- Vibration energy harvesters
Videos
Typical Application Circuit
Package Outline
Dev Tools
Nisshinbo R1801K001A-EV Evaluation Board
Demonstration and development platform for the R1801K Power-Storing Buck DC-DC Converter.
Yayınlandı: 2020-09-11
| Güncellenmiş: 2024-04-25