Microchip Technology MIC45116 20V 6A DC-DC Power Module
Microchip Technology MIC45116 20V 6A DC-DC Power Module is a synchronous step-down regulator featuring a unique adaptive ON-time control architecture. The module incorporates a DC-DC controller, power MOSFETs, bootstrap diode, bootstrap capacitor, and an inductor in a single package, simplifying designs and layout processes. The internal MOSFETs and the inductor are optimized to achieve high efficiency at a low output voltage. The fully optimized design can deliver up to 6A current under a wide input voltage range of 4.75V to 20V without additional cooling. The MIC45116 offers a 1% output accuracy that can be adjusted from 0.8V to 85% of the input (PVIN) with two external resistors. Protections include thermal-shutdown protection, adjustable current limit, and short circuit. The device allows for safe start-up into a pre-biased output. Microchip Technology MIC45116 Power Module is available in a 52-pin QFN package.
Features
- 4.5V to 20V input voltage range
- Output voltage range from 0.8V to 85% of input with ±1% accuracy
- 17.0V maximum output voltage
- >93% peak efficiency
- Up to 6.0A output current
- Fixed 600kHz switching frequency
- Enable input and open-drain PWR good output
- Supports safe start-up into a pre-biased output
- Constant-on-time (COT) control
- Thermal-shutdown protection
- Short-circuit protection with hiccup mode
- Adjustable current limit
- -40°C to +125°C junction temperature range
- 8mm x 8mm x 3mm QFN52 package
Applications
- High-power density point-of-load (POL) conversion
- Servers, routers, networking, and base stations
- FPGAs, DSP, and low-voltage ASIC power supplies
- Industrial and medical equipment
Block Diagram
Typical Application Circuit
Application Notes
Publicado: 2020-09-18
| Atualizado: 2024-08-08