Pololu 5V Step-Up Spændingsregulator U1V10F5 - 0,5-5,5v IN 5v UDT
U1V10F5 switching step-up (eller boost) spændingsregulator genererer effektivt 5V fra indgangsspændinger så lave som 0,5V. I modsætning til de fleste boost-regulatorer skifter U1V10F5 automatisk til en lineær nedreguleringstilstand, når indgangsspændingen overstiger udgangsspændingen. Stifterne har en 0,1" afstand, hvilket gør dette kort kompatibelt med standard loddefri breadboards og perfboards.
Denne 5V boost (step-up) spændingsregulator genererer højere udgangsspændinger fra indgangsspændinger så lave som 0,5V, og den skifter også automatisk til en lineær nedreguleringstilstand, når indgangsspændingen overstiger udgangsspændingen. Dette gør den fremragende til at drive 5V elektronikprojekter fra 1 til 3 NiMH-, NiCd- eller alkaliske celler eller fra en enkelt lithium-ion-celle.
Ved boosting fungerer dette modul som en switching-regulator (også kaldet switched-mode strømforsyninger (SMPS) eller DC-til-DC-konvertere) og har en typisk effektivitet på mellem 70 % og 90 %. Den tilgængelige udgangsstrøm er en funktion af indgangsspændingen, udgangsspændingen og effektiviteten (se afsnittet Typisk effektivitet og udgangsstrøm nedenfor), men indgangsstrømmen kan typisk være så høj som 1,2 A.
Regulatorens termiske afbrydelse aktiveres ved omkring 140 °C og hjælper med at forhindre skader forårsaget af overophedning, men den har ikke beskyttelse mod omvendt spænding.
Funktioner
- Indgangsspænding: 0,5 V til 5,5 V
- Fast 5 V udgang med 4% nøjagtighed
- Automatisk lineær nedregulering, når indgangsspændingen er større end udgangsspændingen
- 1,2 A-switch tillader indgangsstrømme på op til 1,2 A
- God effektivitet ved let belastning: <1 mA typisk hvilestrøm uden belastning, selvom den kan overstige 1 mA ved meget lave indgangsspændinger
- Integreret overtemperaturafbryder
- Lille størrelse: 9 × 11,5 × 2,5 mm
| Minimum driftsspænding | 0,5 V |
| Maksimal driftsspænding | 5,5 V |
| Maksimal indgangsstrøm | 1,2 A |
| Udgangsspænding | 5 V |
| Beskyttelse mod omvendt spænding? | N |
| Maksimal hvilestrøm | 1 mA |
| Størrelse | 0,35″ × 0,45″ × 0,1″ |
| Vægt | 0,4 g |
Ingen anmeldelser fundet
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