GR6220B331MR-G
Jiangsu Guorui Microelectronics Co., Ltd.
Needs validationmedium risk
GR6220B331MR-G is a possible 3.3V LDO alternative with lower Vin rating.
Best Alternatives to ME6214C33M5G
ME6214C33M5G is a 3.3V 300mA SOT-23-5 LDO. Alternatives must be checked for pinout, enable behavior and 18V input rating.
AI replacement insight
Electrical riskhigh
Vin, Iq, dropout and enable differ.
Package riskmedium
Package matches, pinout missing.
Firmware risklow
No digital interface.
Sourcing riskmedium
Lifecycle data is limited.
Can it be replaced directly?
No pin-compatible replacement is proven from the provided evidence.
Best replacement path
Review 3.3V SOT-23-5 LDOs first; GR6220B331MR-G is closest but limited to 7V input.
Main risk
Candidate pinouts are not verified and most 3.3V options have lower input voltage rating.
Recommended alternatives
1Alternative comparison matrix
| Feature / factor | ME6214C33M5G | GR6220B331MR-G | GR6219B332MR | LT1761ES5-SD#PBF | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23-5 | SOT-23-5 | SOT-23-5 | SOT-23-5 | SOT-23-5 — same package; GR6219B332MR: same package; LT1761ES5-SD#PBF: same package |
| Voltage | 3.3V, Vin 18V | 3.3V, Vin 7V | 3.3V, Vin 7V | 1.22-20V adj, Vin 20V | 3.3V, Vin 7V / 1.22-20V adj, Vin 20V — lower Vin max; GR6219B332MR: lower Vin max; LT1761ES5-SD#PBF: needs resistors |
| Current | 300mA | 300mA | 300mA/500mA | 100mA | 300mA / 300mA/500mA / 100mA — same rating; GR6219B332MR: ES differs; LT1761ES5-SD#PBF: major derating |
| Pinout | enable high | unknown | unknown | unknown | unknown — no pin map; GR6219B332MR: no pin map; LT1761ES5-SD#PBF: no pin map |
| Tolerance | ±2% | ±2.5% | - | - | ±2.5% — less accurate |
| Application | 0.7µA Iq | - | 15µA Iq | - | 15µA Iq — higher standby |
| Temperature | unknown | - | - | -40C to 125C | -40C to 125C — target missing |
Application & sourcing insights
Questions & answers
GR6220B331MR-G is the closest listed 3.3V 300mA LDO, but it is only a review candidate due to 7V Vin and missing pinout.