This document describes the features and characteristics of the complete DDR2/3 memory power supply controller evaluation board based on the PM6670S, including input voltage range, output voltage range, adjustable output voltage, load transient response, etc.
The STEVAL-ISA051V1 is an evaluation board designed as a complete DDR2/3 memory power supply regulator for portable applications. It is built around the PM6670S chip and integrates a constant on-time buck controller, a low drop-out regulator, and a buffered reference to meet JEDEC specifications.
The board features a 4.5 V to 28 V input voltage range with selectable output voltages of 1.8 V for DDR2 or 1.5 V for DDR3. It includes advanced protection mechanisms such as latched over-voltage and under-voltage shutdown, negative current limiting, and thermal shutdown.
| Input voltage range | 4.5 V to 28 V |
|---|---|
| Output voltages (fixed) | 1.8 V (DDR2) or 1.5 V (DDR3) |
| Output voltage range (adjustable) | 0.9 V to 2.6 V |
| Base controller | PM6670S |
It is designed for portable applications to meet JEDEC specifications.
Yes, it is fully compliant with system sleep states S3 and S4/S5.