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| PartNumber | RT9172-15GM | RT9172-18CG | RT9172-18GM |
| Description | IC REG LINEAR 1.5V 3A TO263-3 | 1.8V FIXED POSITIVE LDO REGULATOR, 0.7V DROPOUT, PDSO3 | IC REG LINEAR 1.8V 3A TO263-3 |
| Manufacturer | Richtek USA Inc. | RICHTEK | Richtek USA Inc. |
| Product Category | PMIC - Voltage Regulators - Linear | IC Chips | PMIC - Voltage Regulators - Linear |
| Series | - | - | - |
| Packaging | Tape & Reel (TR) | - | Tape & Reel (TR) |
| Package Case | TO-263-4, D2Pak (3 Leads + Tab), TO-263AA | - | TO-263-4, D2Pak (3 Leads + Tab), TO-263AA |
| Operating Temperature | -40°C ~ 125°C | - | -40°C ~ 125°C |
| Mounting Type | Surface Mount | - | Surface Mount |
| Supplier Device Package | TO-263-3 | - | TO-263-3 |
| Voltage Input | 2.25 V ~ 5.5 V | - | 2.25 V ~ 5.5 V |
| Current Output | 3A | - | 3A |
| Voltage Output | 1.5V | - | 1.8V |
| Regulator Topology | Positive Fixed | - | Positive Fixed |
| Voltage Dropout Typical | 0.4V @ 3A | - | 0.4V @ 3A |
| Number of Regulators | 1 | - | 1 |
| Current Limit Min | 3.5A | - | 3.5A |