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| Part Number | FDMF6821B | FDMF6821C | FDMF6823B | FDMF6824B | FDMF6820B | FDMF6821A |
|---|---|---|---|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor | onsemi | Fairchild Semiconductor | onsemi |
| Product Status | Active | Active | Active | Active | Active | Active |
| Output Configuration | Half Bridge | Half Bridge | Half Bridge | Half Bridge | Half Bridge | Half Bridge |
| Applications | Synchronous Buck Converters | Synchronous Buck Converters | Synchronous Buck Converters | Synchronous Buck Converters | Synchronous Buck Converters | Synchronous Buck Converters |
| Interface | Logic, PWM | Logic, PWM | Logic, PWM | PWM | PWM | PWM |
| Load Type | Inductive, Capacitive, Resistive | Inductive | Inductive, Capacitive, Resistive | Inductive | Inductive | Inductive |
| Technology | DrMOS, Power MOSFET | DrMOS | DrMOS, Power MOSFET | DrMOS | DrMOS | DrMOS |
| Rds On (Typ) | 1Ohm LS, 1Ohm HS | - | 1Ohm LS, 1Ohm HS | 1Ohm LS, 1Ohm HS | 1Ohm LS, 1Ohm HS | 1Ohm LS, 1Ohm HS |
| Current - Output / Channel | 55A | 50A | 55A | 55A | 55A | 60A |
| Current - Peak Output | 55A | - | 55A | - | - | - |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Voltage - Load | 4.5V ~ 5.5V | 3V ~ 16V | 4.5V ~ 5.5V | 3V ~ 16V | 3V ~ 16V | 3V ~ 16V |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Features | Bootstrap Circuit | Bootstrap Circuit, Status Flag | Bootstrap Circuit | Bootstrap Circuit, Status Flag | Bootstrap Circuit, Status Flag | Bootstrap Circuit, Status Flag |
| Fault Protection | Over Temperature, Shoot-Through, UVLO | Over Temperature, Shoot-Through, UVLO | Over Temperature, Shoot-Through, UVLO | Over Temperature, Shoot-Through, UVLO | Over Temperature, Shoot-Through, UVLO | Over Temperature, Shoot-Through, UVLO |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 40-TFQFN Exposed Pad | 40-TFQFN Exposed Pad | 40-TFQFN Exposed Pad | 40-PowerTFQFN | 40-TFQFN Exposed Pad | 40-PowerTFQFN |
| Supplier Device Package | 40-PQFN (6x6) | 40-PQFN (6x6) | 40-PQFN (6x6) | 40-PQFN (6x6) | 40-PQFN (6x6) | 40-PQFN (6x6) |
