Step-up switching converter integrates a 1.2 A, 0.2 ohm power switch for adjustable boost regulation. The device operates from 2.5 V to 5.5 V input supplies and can generate output voltages up to 12 V. Pin-selectable PWM switching frequencies of 700 kHz and 1.2 MHz support compact external inductors and capacitors. The Pb-free 8-lead MSOP package operates across a -40°C to +85°C ambient temperature range.
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| Topology | Step-up switching converter |
| Input Voltage | 2.5 to 5.5V |
| Output Voltage | Up to 12V |
| Integrated Switch Current | 1.2A |
| Switch On Resistance | 200 typical, 400 maximummΩ |
| Oscillator Frequency Low Setting | 0.7 typicalMHz |
| Oscillator Frequency High Setting | 1.23 typicalMHz |
| Efficiency | Up to 92% |
| Overall Regulation Accuracy | ±3% |
| Feedback Voltage | 1.230 typicalV |
| Quiescent Current Nonswitching | 390 typical, 600 maximumµA |
| Shutdown Current | 0.01 typical, 10 maximumµA |
| Peak Current Limit | 2.0A |
| Maximum Duty Cycle | 83 typical% |
| UVLO Threshold | 2.4 typicalV |
| Operating Ambient Temperature | -40 to +85°C |
| Package | 8-lead MSOP |
| Pb-free | Yes |
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