| PartNumber | IR3842AMTRPBF | IR3842MTR1PBF | IR3842AMTR1PBF |
| Description | Voltage Regulators - Switching Regulators 6A SupIRBuck Reg 250-1200kHz, 1.5-21V | Voltage Regulators - Switching Regulators 4A SupIRBuck Reg 250-1500kHz, 1.5-16V | IC REG BUCK ADJUSTABLE 6A PQFN |
| Manufacturer | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Product Category | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators |
| Series | SupIRBuck | SupIRBuck | SupIRBuck |
| Packaging | Tape & Reel (TR) | Digi-ReelR Alternate Packaging | Digi-ReelR Alternate Packaging |
| Package Case | 15-PowerVQFN | 15-PowerVQFN | 15-PowerVQFN |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Output Type | Adjustable | Adjustable | Adjustable |
| Function | Step-Down | Step-Down | Step-Down |
| Supplier Device Package | PQFN (5x6) | PQFN (5x6) | PQFN (5x6) |
| Number of Outputs | 1 | 1 | 1 |
| Topology | Buck | Buck | Buck |
| Frequency Switching | 225kHz ~ 1.32MHz | 225kHz ~ 1.65MHz | 225kHz ~ 1.32MHz |
| Current Output | 6A | 4A | 6A |
| Output Configuration | Positive | Positive | Positive |
| Voltage Output Min Fixed | 0.7V | 0.7V | 0.7V |
| Voltage Output Max | 18.9V | 14.4V | 18.9V |
| Synchronous Rectifier | Yes | Yes | Yes |
| Voltage Input Min | 1.5V | 1.5V | 1.5V |
| Voltage Input Max | 21V | 16V | 21V |