Synchronous buck controller with voltage mode operation, featuring temperature-compensated DCR current sensing. Accepts input voltages from 3V to 20V, delivering a fixed 4.7V output up to 15A. Operates with a maximum duty cycle of 93% and includes clock synchronization. Packaged in a 4mm x 4mm x 0.8mm WQFN surface-mount package, this lead-free, RoHS-compliant component operates from -40°C to 125°C.
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Texas Instruments LM27403SQ/NOPB technical specifications.
| Clock Sync | Yes |
| Fall Time | 20us |
| Height | 0.8mm |
| Lead Free | Lead Free |
| Length | 4mm |
| Max Duty Cycle | 93% |
| Max Input Voltage | 20V |
| Min Input Voltage | 3V |
| Max Operating Temperature | 125°C |
| Min Operating Temperature | -40°C |
| Max Output Current | 15A |
| Max Output Voltage | 19V |
| Min Output Voltage | 600mV |
| Mount | Surface Mount |
| Number of Output Phases | 1 |
| Number of Outputs | 1 |
| Operating Supply Current | 3.5mA |
| Operating Supply Voltage | 20V |
| Output Configuration | Positive |
| Output Type | Fixed |
| Output Voltage | 4.7V |
| Package Quantity | 1000 |
| Packaging | Tape and Reel |
| Quiescent Current | 3.5mA |
| Radiation Hardening | No |
| RoHS Compliant | Yes |
| Synchronous Rectifier | Yes |
| Thickness | 750um |
| Width | 4mm |
| RoHS | Compliant |
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