Fingerprint Sensor AS608 - A Beginner's Guide
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5V that survives battery sag. This Pololu buck-boost regulator holds a steady 5V while the input swings anywhere from 2.8V to 22V, so a battery pack can discharge right through 5V without browning out your logic.
Good for around 3A continuous depending on input voltage and cooling, at 85 to 95% typical efficiency.
Specs
| Model | Pololu S13V30F5 |
| Type | Buck-boost (step-up/step-down) regulator |
| Input voltage | 2.8V to 22V |
| Output voltage | 5V fixed (±3%) |
| Continuous output current | Up to ~3A (input voltage + thermal dependent) |
| Typical efficiency | 85% to 95% |
| Protection | Reverse-voltage (to 20V), under-voltage lockout, over-current, over-temp shutoff |
| Size | 22.9 × 22.9 × 9.7mm |
| Mounting | 2 holes for #2 or M2 screws |
Pull the EN pin low to shut the regulator down for low-power standby - useful on battery builds.
FAQ
Will this ship from Manila?
Yes — all stock ships from our Quezon City warehouse. Order before 4 PM weekdays for same-day cutoff via J&T or LBC.
Do you ship nationwide?
Yes. Metro Manila usually arrives next-day; provincial 1–3 working days.
Can I get this on a school PO or class order?
Yes — we accept Purchase Orders from accredited schools and universities. Contact us with your PO details and we'll process it.
Is this compatible with Arduino, ESP32, or Raspberry Pi?
Most parts work with common maker boards — check the description for specific pinout / voltage notes. If you're unsure, send us a message before ordering.
What's your return policy?
7-day inspection window for DOA units. Email proof of issue and we'll ship a replacement or refund. Used / installed parts are not returnable unless faulty.
Do you offer technical support?
Yes — questions land on our forum or via email, weekday or weekend. We've actually wired up most of what we sell.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
Compatibility & downloads
// downloads
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