 |  | | |
| PartNumber | LM27403SQ/NOPB | LM27403SQE | LM27403SQ |
| Description | Switching Controllers High Perf Sync Buck Controller | ||
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Switching Controllers | PMIC - Voltage Regulators - DC DC Switching Controllers | PMIC - Voltage Regulators - DC DC Switching Controllers |
| RoHS | Y | - | - |
| Topology | Buck | Buck | Buck |
| Number of Outputs | 1 Output | 1 | 1 |
| Switching Frequency | 1050 kHz | 1050 kHz | 1050 kHz |
| Duty Cycle Max | 93 % | - | - |
| Input Voltage | 20 V | 3 V to 20 V | 20 V |
| Output Voltage | 4.7 V | 19 V | 4.7 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | WQFN-24 | - | - |
| Packaging | Reel | Digi-ReelR Alternate Packaging | Digi-ReelR Alternate Packaging |
| Description/Function | Synchronous buck controller offering exceptional levels of integration and performance for superior efficiency in high power density, point-of-load DC-DC regulator solutions | - | - |
| Operating Temperature Range | - 40 C to + 125 C | - | - |
| Output Type | Fixed | Transistor Driver | Transistor Driver |
| Product | Voltage Controllers | - | Voltage Controllers |
| Series | LM27403 | LM27403 | LM27403 |
| Type | Synchronous Buck Controller | - | - |
| Brand | Texas Instruments | - | - |
| Shutdown | Shutdown | - | Yes |
| Development Kit | LM27403EVM | LM27403EVM | LM27403EVM |
| Fall Time | 20 us | - | 20 us |
| Operating Supply Current | 3.5 mA | 3.5 mA | 3.5 mA |
| Operating Supply Voltage | 3 V to 20 V | 3 V to 20 V | 3 V to 20 V |
| Product Type | Switching Controllers | - | - |
| Rise Time | 20 us | - | 20 us |
| Factory Pack Quantity | 1000 | - | - |
| Subcategory | PMIC - Power Management ICs | - | - |
| Unit Weight | 0.001411 oz | - | - |
| Package Case | - | WQFN-24 | WQFN-24 |
| Operating Temperature | - | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Function | - | Step-Down | Step-Down |
| Supplier Device Package | - | 24-WQFN (4x4) | 24-WQFN (4x4) |
| Voltage Supply Vcc Vdd | - | 3 V ~ 20 V | 3 V ~ 20 V |
| Frequency Switching | - | 200kHz ~ 1.2MHz | 200kHz ~ 1.2MHz |
| Control Features | - | Enable, Frequency Control, Power Good, Soft Start, Tracking | Enable, Frequency Control, Power Good, Soft Start, Tracking |
| Output Configuration | - | Positive | Positive |
| Output Phases | - | 1 | 1 |
| Duty Cycle Max | - | 93 % | 93 % |
| Synchronous Rectifier | - | Yes | Yes |
| Clock Sync | - | Yes | Yes |
| Serial Interfaces | - | - | - |
| Isolation | - | Non-Isolated | - |
| Description Function | - | High performance synchronous buck controller with temperature-compensated DCR current sensing | Buck Regulator Positive Output Step-Down DC-DC Controller IC 24-WQFN (4x4) |
| Output Current | - | 25 A | - |