MAX8550/MAX8551 is an integrated voltage regulator and power supply solution for DDR memory applications in desktop, notebook, and graphics cards.
The MAX8550 and MAX8551 are integrated buck PWM controllers with an on‑chip LDO, designed for DDR memory systems. They operate from a wide input range, feature Quick‑PWM technology up to 600 kHz, and include UVP/OVP protection.
The document contains detailed electrical characteristics, absolute maximum ratings, pin‑out tables, package dimensions (5 mm × 5 mm Thin QFN), and graphs showing efficiency, load transients, and switching frequency under various conditions. This manual is written in Chinese.
| Switching Frequency (TON = GND) | 600 kHz |
|---|---|
| Operating Temperature Range | -40 °C to +85 °C |
| Package Type | 5 mm × 5 mm Thin QFN |
It can switch at up to 600 kHz.
It is supplied in a 5 mm × 5 mm Thin QFN package.