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| SUM31XX | 1 | fixed 1.2 ~ 4.5 | 1.9 ~ 5.5 | 300 | ±2% | 180@3.3V/300mA | Y | 14 | 10 | 83 | UTDFN1.0×1.0-4; DFN1.0×1.0-4; SOT23-5 |  |
| SUM33XX | 1 | 1.1, 1.2, 1.5, 1.8, 2.5, 2.8, 3.0, 3.3, 3.6 | 1.6 ~ 6.0 | 300 | ±2% | 260@2.8V/300mA | Y | 45 | 70 | 70 | UTDFN1.0×1.0-4; DFN1.0×1.0-4; SC70-5; SOT23-3; SOT23-5 | |
| SUM3452 | 1 | fixed 1.2 ~ 4.5 | 2.1 ~ 5.5 | 500 | ±2% | 180@3.3V/300mA | Y | 18 | 20 | 76 | DFN1.0×1.0-4; SOT23-5; SOT89-3 | |
| SUM3473 | 1 | 1.2, 1.8, 3.0, 3.3 | 2.0 ~ 6.0 | 600 | ±2% | 185@3.3V/300mA | Y | 50 | 60 | 60 | DFN1.0×1.0-4; SOT23-5 | |
