SY21282
Description
The SY21282 high efficiency synchronous step-up regulator operates using adaptive constant off-time and current mode control, and supports a wide input voltage range from 3V to 9V. It integrates switches with low RDS(ON) to minimize conduction loss.
The SY21282 features cycle-by-cycle peak current limit, output short-circuit protection, and true shutdown. It also provides enable control and power-good indicator for system power sequencing. The 1MHz pseudo-constant frequency reduces the output voltage ripple and permits smaller external capacitors and inductor.
The SY21282 is available in a pact QFN3×316 package.
Features
- 3V to 9V Input Voltage Range
- 6A (Min.) Main MOSFET Current Limit
- 7 µA Shutdown Current (Max.)
- 600 µA Quiescent Current (Typ.)
- Programmable Output Current Limit
- Low RDS(ON) for Internal N-Channel
MOSFET: 80mΩ Main, 40mΩ Rectifier, 40mΩ Disconnection
- Synchronous Rectification for High Efficiency
- Pseudoconstant 1MHz Frequency
- Enable Control...
