A synchronous step-down (buck) regulator from Microchip featuring a unique adaptive ON-time control architecture. This highly integrated device incorporates a DC/DC controller, power MOSFETs, bootstrap diode, bootstrap capacitor, and an inductor in a single package. The internal inductor and MOSFETs are optimized to achieve high efficiency operation at a low output voltages. The device can deliver up to 6A of load current over an input voltage range of 4.75V to 20V without the need for any additional cooling.
Feature
- Up to 6A output current
- >93% peak efficiency
- Output voltage: 0.8V to 85% of input with ±1% accuracy
- Fixed 600kHz switching frequency
- Enable input and open-drain power good output
- Hyper Speed Control®(MIC45116-2) architecture enables fast transient response
- HyperLight Load® (MIC45116-1) improves light load efficiency
- Supports safe start-up into pre-biased output
- -40°C to +125°C junction temperature range
- Thermal-shutdown protection
- Short-circuit protection with hiccup mode
- Adjustable current limit
- Available in 52-pin 8mm x 8mm x 3mm QFN package
