Input voltage | 0.5...5 V |
Output voltage | Fixed |
Package | MSOP-8 |
Output voltage | 5 V |
Operating temperature | -40...+85 °C |
Switching frequency | 1 MHz |
Output current | 550 mA |
MCP1643 is a compact, high-efficiency, fixed frequency, synchronous step-up converter optimized to drive one LED with constant current, that operates from one and two-cell alkaline and NiMH/NiCd batteries. The device can also drive two red/green/yellow series connection LEDs.