DC/DC Voltage Regulator 2.7V-11.8V To 2.5V-8V S10V3F9 (STEP UP/DOWN)

The Pololu step-up/step-down voltage regulator S7V8A 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 user-adjustable output between 2.5 V and 8 V 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 the set output voltage.

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 4-cell battery holder, which might have a 6 V output with fresh alkalines or a 4.0 V output with partially discharged NiMH cells, can be used with this regulator to power a 5 V circuit.
• A single lithium-polymer cell can run a 3.3 V device through its whole discharge cycle.
• A disposable 9 V battery powering a 5 V circuit can be discharged to under 3 V instead of cutting out at 6 V, as with typical linear or step-down regulators.

In typical applications, this regulator can deliver up to 1 A continuous when the input voltage is higher than the output voltage (stepping down). When the input voltage is lower than the output voltage (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 3.3 V output or a fixed 5 V output.

Features

• Input voltage: 2.7 V to 11.8 V
• Output voltage adjustable from 2.5 V to 8 V
• 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 0.3 mA)
• Integrated over-temperature and short-circuit protection
• Small size: 0.45″ × 0.65″ × 0.1″ (11 × 17 × 3 mm)
• Complete schematic provided

Claim orders from Stores

You can claim your purchased items within 1 - 4 work days after making an order (if product is in local warehouse).

Please wait for an email notification regarding Your order status update.

Vilnius Store address: Vytenio g. 20, LT-03229 Vilnius, Lietuva

Kaunas Store address: Pramonės pr. 4D, LT-51329, Kaunas, Lietuva

Local delivery in Lithuania

Purchased items are delivered locally through Venipak service. Depending on availability of items, orders are processed within 1-3 work days. Orders made until 1AM are shipped the same day.

Local delivery  (1-4 w.d.) price for items of any size is through through courier service is 4.90€ (incl. VAT), if the amount of the shopping cart exceeds 70€ - delivery is free.

Local delivery price to Venipak parcel terminals (1-3w.d.) is 2.90€ incl. VAT, if the amount of the shopping cart exceeds 50€ - delivery is free.

Local delivery price to Omniva parcel terminals (1-3w.d.) is 3.90€ incl. VAT,if the amount of the shopping cart exceeds 70€ - delivery is free.

Payment on delivery (COD) +2.00€ (incl. VAT).

You can pay for the goods at the time of delivery to the courier in cash or by credit card. Payment to Omniva parcel terminals is only possible by bank card.

International delivery pricing through courier service

International shipping prices depend on geographic location:

Latvia - 5.50€ (incl. VAT)

Estonia - 6.50€ (incl. VAT)

other countries - negiotiated individually.

International delivery pricing to Omniva/Venipak parcel terminals

Latvia - 6.00€ (incl. VAT)

Estonia - 8.50€ (incl. VAT)

Payments:

We accept payments via PayPal for orders over 20€.

Paid orders of more than 100€ are shipped for free to Latvia and Estonia.

Product availability status:

Vilnius Store In Stock - the product is at the store, Vytenio str. 20 in Vilnius and can be picked up / purchased at same day;

Kaunas Store In Stock - the product is at the store, Pramonės pr. 4D in Kaunas and can be picked up / purchased the same day;

Central Warehouse In Stock - In stock, product will be shipped in a short time 1-2 work days;

1-2 work days - product will be shipped in a short time - 1-2 business days;

2-3 work days – we don’t have selected product in local warehouse. Shipping time is only 2-3 work days;

3-5 work days – we don’t have selected product in local warehouse. Shipping time is between 3-5 work days;

3-7 work days – we don’t have selected product in local warehouse. Shipping time is between 3-7 work days;

Out of Stock – selected product is sold out at the moment, but you can apply for automatic alert by email when product will be in stock.