| PartNumber | R1171S401B-E2-FE | R1171S451A-E2-FE | R1171S421B-E2-FE |
| Description | LDO Voltage Regulators 2A/1.5A Voltage Regulator (LDO Regulator) | LDO Voltage Regulators 2A/1.5A Voltage Regulator (LDO Regulator) | LDO Voltage Regulators 2A/1.5A Voltage Regulator (LDO Regulator) |
| Manufacturer | Ricoh Electronics | Ricoh Electronics | Ricoh Electronics |
| Product Category | LDO Voltage Regulators | LDO Voltage Regulators | LDO Voltage Regulators |
| RoHS | Y | Y | Y |
| Package / Case | HSOP-6J-6 | HSOP-6J-6 | HSOP-6J-6 |
| Packaging | Reel | Reel | Reel |
| Brand | Ricoh Electronic Devices Company | Ricoh Electronic Devices Company | Ricoh Electronic Devices Company |
| Product Type | LDO Voltage Regulators | LDO Voltage Regulators | LDO Voltage Regulators |
| Factory Pack Quantity | 1000 | 1000 | 1000 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Mounting Style | - | - | SMD/SMT |
| Output Voltage | - | - | 4.2 V |
| Output Current | - | - | 1.5 A |
| Number of Outputs | - | - | 1 Output |
| Input Voltage MAX | - | - | 6 V |
| Input Voltage MIN | - | - | 2.1 V |
| Output Type | - | - | Fixed |
| Minimum Operating Temperature | - | - | - 40 C |
| Maximum Operating Temperature | - | - | + 85 C |
| Dropout Voltage | - | - | 90 mV |
| Series | - | - | R1171S |
| Product | - | - | LDO Voltage Regulators |
| Type | - | - | CMOS LDO Regulator |
| Dropout Voltage Max | - | - | 180 mV |
| Output Voltage Range | - | - | - |
| PSRR / Ripple Rejection Typ | - | - | 50 dB |
| Voltage Regulation Accuracy | - | - | 2 % |
| Line Regulation | - | - | 0.05 %/V |
| Load Regulation | - | - | 10 mV |
| Operating Supply Current | - | - | 130 uA |
| Pd Power Dissipation | - | - | 1.7 W |