Pololu 3.3V Step-Up Step-Down Spannungsregler S7V8F3

Artikelnummer: PO2122

EAN: 4060137015656

Hersteller-Artikelnr.: 2122

The S7V8F3 switching step-up/step-down regulator efficiently produces a fixed 3.3V output from input voltages between 2.7V and 11.8V. Its ability to convert both higher and lower input voltages makes it useful for applications where the power supply voltage can vary greatly, as with batteries that start above but discharge below the regulated voltage. The compact (0.45"x0.65") module has a typical efficiency of over 90% and can deliver 500mA to 1A across most of the input voltage range.

Kategorie: Spannungsregler


5,94 €

inkl. 19% USt.,

sofort verfügbar

Lieferzeit: 1 bis 2 Tage



Beschreibung

Overview

The Pololu step-up/step-down voltage regulator S7V8F3 is a switching regulator (also called a switched-mode power supply (SMPS) or DC-to-DC converter) that uses a buck-boost topology. It takes an input voltage from 2.7 V to 11.8 V and increases or decreases the voltage to a fixed 3.3 V output with a typical efficiency of over 90%. The input voltage can be higher than, lower than, or equal to the set output voltage, and the voltage is regulated to achieve a steady 3.3 V.

This flexibility in input voltage is especially well-suited for battery-powered applications in which the battery voltage begins above the desired output voltage and drops below the target as the battery discharges. Without the typical restriction on the battery voltage staying above the required voltage throughout its life, new battery packs and form factors can be considered. For example:

  • A 3-cell battery holder, which might have a 4.5 V output with fresh alkalines or a 3.0 V output with partially discharged NiMH cells, can be used with this regulator to power a 3.3 V circuit.
  • A single lithium-polymer cell can run a 3.3 V device through its whole discharge cycle.

In typical applications, this regulator can deliver up to 1 A continuous when the input voltage is higher than 3.3 V (stepping down). When the input voltage is lower than 3.3 V (stepping up), the available current decreases as the difference between the voltages increases; please see the graphs at the bottom of this page for a more detailed characterization. The regulator has short-circuit protection, and thermal shutdown prevents damage from overheating; the board does not have reverse-voltage protection.

This regulator is also available with a fixed 5 V output and with a user-adjustable output.

Features

  • input voltage: 2.7 V to 11.8 V
  • fixed 3.3 V output with +5/-3% accuracy
  • typical continuous output current: 500 mA to 1 A across most combinations of input and output voltages (Actual continuous output current depends on input and output voltages. See Typical Efficiency and Output Current section below for details.)
  • power-saving feature maintains high efficiency at low currents (quiescent current is less than 0.1 mA)
  • integrated over-temperature and short-circuit protection
  • small size: 0.45" × 0.65" × 0.1" (11 × 17 × 3 mm)

Document

Bewertungen (0)

Durchschnittliche Artikelbewertung

Geben Sie die erste Bewertung für diesen Artikel ab und helfen Sie Anderen bei der Kaufenscheidung:

Frage zum Produkt

Kontaktdaten
Frage zum Produkt
max. 500 Zeichen

ähnliche Produkte:
Pololu 3.3V Step-Up Spannungsregler U1V11F3 Pololu 3.3V Step-Up Spannungsregler U1V11F3
sofort verfügbar
Pololu 5V Step-Up Spannungsregler U3V12F5 Pololu 5V Step-Up Spannungsregler U3V12F5
sofort verfügbar
Pololu 5V Step-Up Step-Down Spannungsregler S10V4F5 Pololu 5V Step-Up Step-Down Spannungsregler S10V4F5
sofort verfügbar
Pololu 5V Step-Up Step-Down Spannungsregler S7V7F5 Pololu 5V Step-Up Step-Down Spannungsregler S7V7F5
sofort verfügbar
Pololu 5V Step-Up Step-Down Spannungsregler S7V8F5 Pololu 5V Step-Up Step-Down Spannungsregler S7V8F5
sofort verfügbar
Pololu 5V, 5A Step-Down Spannungsregler D24V50F5 Pololu 5V, 5A Step-Down Spannungsregler D24V50F5
sofort verfügbar
Pololu Adjustable Step-Up Step-Down Spannungsregler S7V8A Pololu Adjustable Step-Up Step-Down Spannungsregler S7V8A
Lange Lieferzeit beachten!
Pololu Adjustable Step-Up Step-Down Spannungsregler S8V3A Pololu Adjustable Step-Up Step-Down Spannungsregler S8V3A
sofort verfügbar
Pololu Step-Down Spannungsregler D24V3ALV Pololu Step-Down Spannungsregler D24V3ALV
sofort verfügbar
Kunden kauften dazu folgende Produkte
Pololu 5V Step-Up Step-Down Spannungsregler S7V7F5 Pololu 5V Step-Up Step-Down Spannungsregler S7V7F5
sofort verfügbar
Jumper Wire 10x1P female to female 20cm
sofort verfügbar
SparkFun Logic Level Converter - Bi-Directiona Shifter... SparkFun Logic Level Converter - Bi-Directiona Shifter...
sofort verfügbar
Pololu 3.3V Step-Up Spannungsregler U1V10F3 Pololu 3.3V Step-Up Spannungsregler U1V10F3
sofort verfügbar
MB-102 Steckbrett Breadboard 830 Pins MB-102 Steckbrett Breadboard 830 Pins
sofort verfügbar
Jumper Wire 10x1P female to male 20cm Jumper Wire 10x1P female to male 20cm
sofort verfügbar
Kaufen Sie diesen Artikel im Bundle

Preis für alle: 5,94 €