STMicroelectronics · Other integrated circuits
AST1S31HF
IC REG BUCK ADJ 3A 8VFDFPN
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AST1S31HF specifications
Recorded source facts. Missing values are kept explicit; verify the exact manufacturer document before design approval.
| Manufacturer | STMicroelectronics |
|---|---|
| Ordering code | AST1S31HF |
| Family | Other integrated circuits |
| Package | 8-VDFN Exposed Pad |
| Product Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.8V |
| Voltage - Input (Max) | 4V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 4V |
| Current - Output | 3A |
| Frequency - Switching | 2.3MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 8-VDFN Exposed Pad |
| Supplier Device Package | 8-VFDFPN (3x3) |
Documents and evidence
AST1S31HF ↗Catalog sources
www.ic-components.com · AST1S31HF ↗Source directory identity match; source detail pending. Specifications remain from existing catalog.
Before sourcing AST1S31HF
- Identify the firmware and board baseline
- Check flash, RAM and required peripherals
- Review pin assignment and supply limits
- Keep the full temperature and package suffix
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