Synchronous step-down DC-DC converter supplies up to 3A for portable 2-cell and 3-cell battery applications. The input range spans 2.6V to 14V, and the adjustable output range is 0.6V to 6V using external feedback resistors. Fixed switching-frequency options cover 0.5MHz to 1.5MHz, with external clock synchronization available on supported variants. Low-IQ SKIP mode supports light-load efficiency, and protection features include cycle-by-cycle current limit, UVLO, thermal shutdown, soft-start, and short-circuit hiccup mode. Package options include a 16-bump WLP and a 12-lead FC2QFN.
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| Regulator topology | Synchronous step-down buck |
| Output channels | 1 |
| Output current | 3A |
| Input voltage range | 2.6 to 14V |
| Output voltage range | 0.6 to 6V |
| Switching frequency options | 0.5, 0.75, 1.0, 1.5MHz |
| Peak efficiency | 94 typical at 7.4V input and 3.3V output% |
| Shutdown current | 1.2 typical, 3 maximumµA |
| Supply current in SKIP mode | 12 typical at 1.8V outputµA |
| Undervoltage lockout threshold | 2.5 typical risingV |
| Feedback voltage | 0.6 typicalV |
| High-side MOSFET on-resistance | 50 typicalmΩ |
| Low-side MOSFET on-resistance | 27 typicalmΩ |
| High-side peak current limit | 4 typicalA |
| Operating junction temperature range | -40 to 125°C |
| Thermal shutdown | 165 typical°C |
| WLP package size | 1.7 x 1.7, 16-bump, 0.4mm pitchmm |
| FC2QFN package size | 2.5 x 2.5, 12-lead, 0.5mm pitchmm |
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