SparkFun Buck Regulator Breakout - 3.3V (AP3429A)

SKU: COM-21337 Brand: Sparkfun
The SparkFun 3.3V Buck Regulator Breakout features the AP3429A from Diodes Inc., a 2A step-down DC-DC converter with an input voltage range of 2.7V to 5.5V...
$9.75 AUD, inc GST
$8.86 AUD, exc GST

Available with a lead time
Expect dispatch between Nov 28 and Dec 02

Quantity Discounts:

  • 10-25 $8.60 (exc GST)
  • 25+ $8.42 (exc GST)
- +

0 from local stock, 1 supplier stock; your order will dispatch between Dec 1 to Dec 10. And yes, stock levels and lead times are accurate!

Shipping:

  • $7+ Standard (5+ days*, tracked)
  • $11+ Express (2+ days*, tracked)
  • FREE Pickup (Newcastle only - must order online*)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

The SparkFun 3.3V Buck Regulator Breakout features the AP3429A from Diodes Inc., a 2A step-down DC-DC converter with an input voltage range of 2.7V to 5.5V. This full-size, 1in. x 1in. version of our buck regulator boards is configured to provide a regulated 3.3V output (from a 3.9 to 5.5V input voltage range), which is controlled by an EN (enable) pin. To dissipate excess heat, a 0.6in. x 0.5in. copper pad is provided to attach a heat sink to the bottom of the board.

As a full-size buck regulator breakout, additional options for connecting input and output power are available. There is a pre-assembled screw terminal for a non-permanent connection, the option to solder on a barrel jack for an external power supply, and five PTH pins to create a more permanent installation. Our full-size buck regulators also come with a red, power indication LED that light up when the power output is enabled. This board has four mounting holes compatible with 4-40 hardware.

Get Started with the SparkFun AP3429A Buck Regulator Guide

Features

Buck Board:

  • 1in. x 1in. PCB layout
  • Three power input/output options:
    • Pre-assembled 4-pin screw terminal
    • Five 0.1in. spaced PTH pins
    • Four plated slots for a DC barrel jack (input only)
  • Power connections:
    • VIN - Power In (3.9V to 5.5V)
    • GND - Common Ground
    • VOUT - Power Out (Regulated 3.3V)
    • EN - Enable (Pull high to enable the power output)
  • Red, power LED indicator
  • 0.5in. x 0.6in. Plated copper pad (for heat sinks)

AP3429A:

  • VIN: 2.7V to 5.5V
  • VOUT: 0.6V to VIN
  • 2A Continuous Output Current
  • 90µA No-Load Quiescent Current
  • 1MHz Switching Frequency
  • Protection Circuitry
    • Undervoltage Lockout (UVLO)
    • Input Overvoltage Protection
    • Over Current Protection
      • Cycle-by-Cycle Peak Current Limit
    • Thermal Shutdown (160°C/320°F)

Documents

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

  • $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
  • $7+ for Standard Post (typically 6+ business days, tracked)
  • $11+ for Express Post (typically 2+ business days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $12+ for Pack and Track (3+ days, tracked)
  • $16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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