The MIC28515 is a 75 V/5 A synchronous buck regulator with Hyper Speed Control, adjustable 0.6‑32 V output and up to 95 % efficiency.
The MIC28515 is a frequency‑tunable synchronous buck regulator that uses Microchip’s Hyper Speed Control® architecture. It operates from 4.5 V to 75 V input, delivers up to 5 A continuous output, and provides an adjustable output voltage from 0.6 V to 32 V with ±1 % accuracy. The device features selectable HLL or CCM modes, internal compensation, a built‑in 5 V LDO, and a wide switching‑frequency range of 270 kHz to 800 kHz.
Typical applications include distributed power systems, communication/network infrastructure, industrial power supplies, and solar‑energy converters where high efficiency, fast transient response, and robust protection are required. This manual is written in Chinese.
| Input voltage range | 4.5 V – 75 V |
|---|---|
| Maximum output current | 5 A |
| Adjustable output voltage range | 0.6 V – 32 V |
| Efficiency (typical) | up to 95 % |
| Switching frequency range | 270 kHz – 800 kHz |
| Operating temperature range | -40 °C – +125 °C |
| Package | 32‑pin 6 mm × 6 mm VQFN |
The device operates from 4.5 V up to 75 V input.
It can provide up to 5 A of continuous output current.
The regulator can achieve up to 95 % efficiency.