> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# DC/DC Converter - 5V 5W (R-78E)

**Type:** Product page · **SKU:** COM-14453 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/dc-dc-converter-5v-5w-r-78e.html ([markdown](https://core-electronics.com.au/dc-dc-converter-5v-5w-r-78e.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: POLOLU-2831.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/POLOLU-2831

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

This R-78E DC/DC Converter is a switching regulator module that has been designed to offer all the advantages of a switching regulator (high efficiency, wide input range, accurate output voltage regulation) but at an economic cost with the ease of adding it to your project.

Due to the R-78E’s high efficiency of up to 91 percent at an output voltage of 5V/1A at the output, no heat sink is required. The compact TO-220 compatible SIP3 package measures only 11.6mm x 8.5mm x 10.4mm, saving precious board space.

**Features**

- Efficiency up to 91%, no need for heatsinks!
- Pin-out compatible with LM78XX linear regs
- Low profile
- Wide input range (7V–28V)
- Short-circuit protection
- IEC/EN60950-1, Am2 certified

**Documents**

[Datasheet](https://cdn.sparkfun.com/assets/0/f/7/3/e/R-78Exx-1.0.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/4/14453-01.jpg)