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Pololu 12V Step-Up Voltage Regulator U3V12F12 Pololu

Original price was: $ 24.Current price is: $ 14.

SKU: mode_8003719944 Category: Voltage regulator Tag: Power Supplies

Description
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The compact (0.32″×0.515″) U3V12F12 switching step-up (or boost) voltage regulator takes an input voltage as low as 2.5 V and efficiently boosts it to 12 V. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Overview

These boost (step-up) voltage regulators generate higher output voltages from input voltages as low as 2.5 V. They are switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) and have a typical efficiency between 80% to 90%. The available output current is a function of the input voltage, output voltage, and efficiency (see Typical Efficiency and Output Current section below), but the input current can typically be as high as 1.4 A. This regulator is available with a fixed 5 V, 9 V, or 12 V output.

The regulator’s thermal shutdown prevents damage from overheating, but it does not have short-circuit or reverse-voltage protection.

Features

input voltage: 2.5 V – VOUT
fixed 5 V, 9 V, or 12 V output with 4% accuracy
1.4 A switch allows for input currents up to 1.4 A
2 mA typical no-load quiescent current
integrated over-temperature shutoff
small size: 0.515″ × 0.32″ × 0.1″ (13 × 8 × 3 mm)

Using the Regulator

Connections

The boost regulator has three connections: input voltage (VIN), ground (GND), and output voltage (VOUT).

The input voltage, VIN, must be at least 2.5 V and should not exceed the output voltage, VOUT. Please be wary of destructive LC spikes that might cause the input voltage to exceed VOUT (see below for more information).

The three connections are labeled on the back side of the PCB, and they are arranged with a 0.1″ spacing along the edge of the board for compatibility with solderless breadboards, connectors, and other prototyping arrangements that use a 0.1″ grid. You can solder wires directly to the board or solder in either the 3×1 straight male header strip or the 3×1 right-angle male header strip that is included.

Typical Efficiency and Output Current

The efficiency of a voltage regulator, defined as (Power out)/(Power in), is an important measure of its performance, especially when battery life or heat are concerns.

The maximum achievable output current is approximately proportional to the ratio of the input voltage to the output voltage. If the input current exceeds the switch current limit (typically somewhere between 1.4 and 2 A), the output voltage will begin to drop. Additionally, the maximum output current can depend on other factors, including the ambient temperature, air flow, and heat sinking.

LC Voltage Spikes

When connecting voltage to electronic circuits, the initial rush of current can cause damaging voltage spikes that are much higher than the input voltage. In our tests with typical power leads (~30″ test clips), input voltages above 10 V caused voltage spikes in excess of 20 V. You can suppress such spikes by soldering a 33μF or larger electrolytic capacitor close to the regulator between VIN and GND.

Dimensions

Size:	0.32″ × 0.515″ × 0.1″
Weight:	0.4 g

General specifications

Minimum operating voltage:	2.5 V
Maximum operating voltage:	12 V
Maximum input current:	1.4 A
Output voltage:	12 V
Reverse voltage protection?:	N
Maximum quiescent current:	2 mA

Identifying markings

PCB dev codes:	reg10a
Other PCB markings:	0J7032

Notes:

1. Without included optional headers.
2. Regulator may overheat at lower input currents when VIN is much lower than VOUT. Available output current is a function of VIN, VOUT, and the regulator efficiency.

Fast Shipping with Professional Packaging

Due to our longstanding partnership with UPS FedEx DHL as well as other major international carriers, we are able to provide a range of shipping options. Our warehouse staff is highly trained to package your goods exactly according to the specifications we provide. Your items will go through a thorough examination and will be safely packaged prior to being sent out. We deliver to thousands of customers every day from all over the world. The fact that we are determined to become the largest online retailer in the world is obvious. Warehouses and distribution centres can be located in Europe as well as in the USA.

It is important to note that orders with multiple items are subject to a processing period that is based to the particular item.

Prior to shipping, our team will perform an extensive inspection of the products you have ordered. Most orders today are shipped in 48 hours. The expected delivery time will be between 3 and 7 days.

Returns

Due to the multiple parties involved such as the factory and the warehouse, we cannot completely manage our stock. The actual levels of stock can change at any moment. It's possible that you may not receive your order once the order has been made.

Our policy is for 30 days. If 30 days have gone without a trace since the purchase however, we're unable to give you a return or exchange.

You are able to return a product in the event that it is not used and still in the same state as when you first received it. The item must be returned in its original packaging.