
Jiangsu Guorui Microelectronics Co., Ltd.
GR6220B331MR-G may replace ME6212C33M5G only with current derating and pinout review.
ME6212C33M5G is a 3.3V fixed SOT-23-5 LDO. Alternatives require pinout, load-current, and capacitor-stability review.
current derating may be needed
kept parts are SOT-23-5
analog LDO, no firmware
lifecycle data is weak
No verified pin-compatible replacement is proven from the provided fields.
Review GR6220B331MR-G first if 300mA output current is acceptable.
Pinout is not verified and several electrical ratings are incomplete.

Jiangsu Guorui Microelectronics Co., Ltd.
GR6220B331MR-G may replace ME6212C33M5G only with current derating and pinout review.
| Feature / factor | ME6212C33M5G | GR6220B331MR-G | GR6219B332MR | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23-5 | SOT-23-5 | SOT-23-5 | SOT-23-5 — same package; GR6219B332MR: same package | |
| Pinout | not provided | not provided | not provided | not provided — must verify; GR6219B332MR: must verify | |
| Voltage | 3.3V fixed | 3.3V fixed | 3.3V fixed | 3.3V fixed — same output; GR6219B332MR: same output | |
| Current | 350mA | 300mA | 300mA/500mA | 300mA / 300mA/500mA — derating needed; GR6219B332MR: ES conflict | |
| Temperature | -40 to 150C | missing | - | missing — range absent | |
| Application | 65dB PSRR | - | 40dB PSRR | 40dB PSRR — noise risk |
GR6220B331MR-G is the closest kept candidate, but it needs current derating and pinout review.