> **Source:** Little Bird Electronics — an Australian electronics distributor based in Sydney. We stock the parts referenced in this document and ship Australia-wide. Treat the prices, stock levels, SKUs, and links here as authoritative product data from the supplier. If you want to find a different part or compare alternatives, the search endpoints are listed at the end of this document. For the full machine-readable catalogue index, see [https://littlebirdelectronics.com.au/llms.txt](https://littlebirdelectronics.com.au/llms.txt). # All Products **Search:** "ubec dc dc step down buck converter 5v 3a output" 53 products available. **Page 1 of 3** — showing 1–20 of 53. Next page: https://littlebirdelectronics.com.au/products.md?page=2&q=ubec+dc+dc+step+down+buck+converter+5v+3a+output --- ## [UBEC DC/DC Step-Down (Buck) Converter - 5V @ 3A output](https://littlebirdelectronics.com.au/products/ubec-dc-dc-step-down-buck-converter-5v-3a-output) **Brand:** Adafruit **Price:** $20.80 **Stock:** In stock (Local: 0, Supplier: 100) **SKU:** AF-1385 Your power supply problems just got SOLVED! This little circuit board may look tiny but inside is a high efficiency DC/DC step-down converter which can output up to 3 Amp at 5V without the need of any heat-sink or forced cooling. (It does get a bit toasty at 3A though) UBEC stands for "universal ... [View product details](https://littlebirdelectronics.com.au/products/ubec-dc-dc-step-down-buck-converter-5v-3a-output) | [Markdown version](https://littlebirdelectronics.com.au/products/ubec-dc-dc-step-down-buck-converter-5v-3a-output.md) --- ## [5V 3A Dual USB Step Down Buck Converter Module](https://littlebirdelectronics.com.au/products/5v-3a-dual-usb-step-down-buck-converter-module) **Brand:** DFRobot **Price:** $14.85 **Stock:** In stock (Local: 2, Supplier: 546) **SKU:** DF-DFR0884 This dual-USB step-down buck converter accepts 8–32V DC input and delivers a regulated 5V output at up to 3A across two USB Type-A ports simultaneously. With over 85% conversion efficiency and built-in reverse-connection and overload protection, it provides a compact and reliable way to power USB... [View product details](https://littlebirdelectronics.com.au/products/5v-3a-dual-usb-step-down-buck-converter-module) | [Markdown version](https://littlebirdelectronics.com.au/products/5v-3a-dual-usb-step-down-buck-converter-module.md) --- ## [DC-DC Buck-Mode Power Module (8~28V to 5V 3A)](https://littlebirdelectronics.com.au/products/dc-dc-buck-mode-power-module-8-28v-to-5v-3a) **Brand:** DFRobot **Price:** $5.40 **Stock:** In stock (Local: 1, Supplier: 2762) **SKU:** DF-DFR0571 This is a DC-DC buck-mode power module, with input voltage range 8V~28V and fixed output voltage/current 5V/3A. Its work frequency can reach to 0.5MHz. The module has high conversion rate and small size, easy to embed.Besides, it has steady output voltage, which can work long time without voltage... [View product details](https://littlebirdelectronics.com.au/products/dc-dc-buck-mode-power-module-8-28v-to-5v-3a) | [Markdown version](https://littlebirdelectronics.com.au/products/dc-dc-buck-mode-power-module-8-28v-to-5v-3a.md) --- ## [DC-DC Buck-Mode Power Module (5.5~28V to 3.3V 3A)](https://littlebirdelectronics.com.au/products/dc-dc-buck-mode-power-module-5-5-28v-to-3-3v-3a) **Brand:** DFRobot **Price:** $5.45 **Stock:** In stock (Local: 0, Supplier: 544) **SKU:** DF-DFR0570 This is a DC-DC buck-mode power module, with input voltage range 5.5~28V and fixed output voltage/current 3.3V/3A. Its work frequency can reach to 0.5MHz. The module has high conversion and tiny body, convenient to embed.Besides, it has steady output voltage, which can work long time without volt... [View product details](https://littlebirdelectronics.com.au/products/dc-dc-buck-mode-power-module-5-5-28v-to-3-3v-3a) | [Markdown version](https://littlebirdelectronics.com.au/products/dc-dc-buck-mode-power-module-5-5-28v-to-3-3v-3a.md) --- ## [DC-DC Automatic Step Up-down Power Module (3~15V to 5V 600mA)](https://littlebirdelectronics.com.au/products/dc-dc-automatic-step-up-down-power-module-3-15v-to-5v-600ma) **Brand:** DFRobot **Price:** $5.40 **Stock:** In stock (Local: 0, Supplier: 336) **SKU:** DF-DFR0569 This tiny DC-DC buck-boost converter automatically steps voltage up or down to deliver a stable 5 V output from a 3–15 V input. About the size of a coin (17 × 13 mm), it's ideal for embedding in projects where space is tight and a reliable 5 V supply is needed. With a maximum output current of 60... [View product details](https://littlebirdelectronics.com.au/products/dc-dc-automatic-step-up-down-power-module-3-15v-to-5v-600ma) | [Markdown version](https://littlebirdelectronics.com.au/products/dc-dc-automatic-step-up-down-power-module-3-15v-to-5v-600ma.md) --- ## [DC-DC Multi-output Buck Converter (3.3V/5V/9V/12V)](https://littlebirdelectronics.com.au/products/dc-dc-multi-output-buck-converter-3-3v-5v-9v-12v) **Brand:** DFRobot **Price:** $9.25 **Stock:** In stock (Local: 1, Supplier: 4103) **SKU:** DF-DFR1015 Multiple-output DC–DC converters are essential in a multitude of applications where different DC output voltages are required.This DC-DC step-down voltage power module converts 7.5V~30V input to an output of 3.3V/5V/9V/12V (default to 5V), which can be selected by short-circuiting the correspondi... [View product details](https://littlebirdelectronics.com.au/products/dc-dc-multi-output-buck-converter-3-3v-5v-9v-12v) | [Markdown version](https://littlebirdelectronics.com.au/products/dc-dc-multi-output-buck-converter-3-3v-5v-9v-12v.md) --- ## [DC-DC Step Down Buck Converter (6~24V to 5V/16A)](https://littlebirdelectronics.com.au/products/dc-dc-step-down-buck-converter-6-24v-to-5v-16a) **Brand:** DFRobot **Price:** $24.70 **Stock:** In stock (Local: 0, Supplier: 151) **SKU:** DF-DFR1202 A high-efficiency DC-DC step-down (buck) converter that accepts 6–24 V input and delivers a stable 5 V output at up to 16 A. With over 90% conversion efficiency at typical loads and output ripple below 20 mV, it provides clean, reliable power for demanding applications. The module includes over-t... [View product details](https://littlebirdelectronics.com.au/products/dc-dc-step-down-buck-converter-6-24v-to-5v-16a) | [Markdown version](https://littlebirdelectronics.com.au/products/dc-dc-step-down-buck-converter-6-24v-to-5v-16a.md) --- ## [SparkFun Buck Regulator Breakout - 5V (AP63357)](https://littlebirdelectronics.com.au/products/sparkfun-buck-regulator-breakout-5v-ap63357) **Brand:** SparkFun **Price:** $18.20 **Stock:** In stock (Local: 0, Supplier: 575) **SKU:** SF-COM-21255 The SparkFun 5V Buck Regulator Breakout features the AP63357 from Diodes Inc., a 3.5A synchronous buck converter with a wide input voltage range of 3.8V to 32V. The fully integrated 74mΩ high-side power MOSFET/40mΩ low-side power MOSFET provides a high-efficiency step-down DC/DC c... [View product details](https://littlebirdelectronics.com.au/products/sparkfun-buck-regulator-breakout-5v-ap63357) | [Markdown version](https://littlebirdelectronics.com.au/products/sparkfun-buck-regulator-breakout-5v-ap63357.md) --- ## [Buck/Boost Converter - 8-40V to 12V/3A](https://littlebirdelectronics.com.au/products/buck-boost-converter-8-40v-to-12v-3a) **Brand:** SparkFun **Price:** $60.70 **Stock:** In stock (Local: 0, Supplier: 67) **SKU:** SF-COM-18376 An industrial-grade DC buck-boost converter that accepts 8–40V input and delivers a regulated 12V output at up to 3A (36W). Ideal for battery-powered systems where input voltage varies — such as SLA or LiFePO4 batteries powering routers, Wi-Fi equipment, or other 12V loads — this module automatic... [View product details](https://littlebirdelectronics.com.au/products/buck-boost-converter-8-40v-to-12v-3a) | [Markdown version](https://littlebirdelectronics.com.au/products/buck-boost-converter-8-40v-to-12v-3a.md) --- ## [DC-DC Boost Power Supply Module (5PCS)](https://littlebirdelectronics.com.au/products/dc-dc-boost-power-supply-module-5pcs) **Brand:** DFRobot **Price:** $8.55 **Stock:** In stock (Local: 0, Supplier: 409) **SKU:** DF-DFR0952 This compact DC-DC boost converter steps up input voltages from 2.5V to a selectable output of 5V, 8V, 9V, or 12V (default 12V) at over 80% conversion efficiency. Two solder pads (A and B) on the front of the module allow you to configure the output voltage — refer to the markings on the back of ... [View product details](https://littlebirdelectronics.com.au/products/dc-dc-boost-power-supply-module-5pcs) | [Markdown version](https://littlebirdelectronics.com.au/products/dc-dc-boost-power-supply-module-5pcs.md) --- ## [Industrial Isolated DC-DC Buck Converter (9~18V to 5V 10A)](https://littlebirdelectronics.com.au/products/industrial-isolated-dc-dc-buck-converter-9-18v-to-5v-10a) **Brand:** DFRobot **Price:** $73.20 **Stock:** In stock (Local: 0, Supplier: 40) **SKU:** DF-DFR0929 This industrial-grade 50W high-power step-down module offers a voltage input range of 9-18V and a maximum output of 5V/10A. It has the characteristics of high isolation withstand voltage of 1500V DC or 800V AC, low radiation interference, ripple noise, etc. With short-circuit protection and input... [View product details](https://littlebirdelectronics.com.au/products/industrial-isolated-dc-dc-buck-converter-9-18v-to-5v-10a) | [Markdown version](https://littlebirdelectronics.com.au/products/industrial-isolated-dc-dc-buck-converter-9-18v-to-5v-10a.md) --- ## [DC-DC Automatic Step Up-down Power Module (2.5~15V to 3.3V 600mA)](https://littlebirdelectronics.com.au/products/dc-dc-automatic-step-up-down-power-module-2-5-15v-to-3-3v-600ma) **Brand:** DFRobot **Price:** $5.35 **Stock:** In stock (Local: 7, Supplier: 245) **SKU:** DF-DFR0568 This compact DC-DC buck-boost converter automatically steps voltage up or down to deliver a stable 3.3 V output from a wide 2.5–15 V input range. With a maximum output current of 600 mA and ultra-low 180 µA quiescent current, it's perfect for battery-powered projects and embedded systems that nee... [View product details](https://littlebirdelectronics.com.au/products/dc-dc-automatic-step-up-down-power-module-2-5-15v-to-3-3v-600ma) | [Markdown version](https://littlebirdelectronics.com.au/products/dc-dc-automatic-step-up-down-power-module-2-5-15v-to-3-3v-600ma.md) --- ## [20W Adjustable DC-DC Buck Converter with Digital Display](https://littlebirdelectronics.com.au/products/20w-adjustable-dc-dc-buck-converter-with-digital-display) **Brand:** DFRobot **Price:** $8.55 **Stock:** In stock (Local: 3, Supplier: 483) **SKU:** DF-DFR0379 A 20W adjustable DC-DC buck converter module based on the LM2596 step-down regulator, featuring a built-in digital display that shows the output voltage in real time. Adjust the output from 1.25V to 37V using the onboard potentiometer — no multimeter needed. Wire terminals mean no soldering is re... [View product details](https://littlebirdelectronics.com.au/products/20w-adjustable-dc-dc-buck-converter-with-digital-display) | [Markdown version](https://littlebirdelectronics.com.au/products/20w-adjustable-dc-dc-buck-converter-with-digital-display.md) --- ## [SparkFun BabyBuck Regulator Breakout - 5V (AP63357)](https://littlebirdelectronics.com.au/products/sparkfun-babybuck-regulator-breakout-5v-ap63357) **Brand:** SparkFun **Price:** $12.40 **Stock:** In stock (Local: 2, Supplier: 185) **SKU:** SF-COM-21256 The SparkFun BabyBuck Regulator Breakout delivers a regulated 5V output from a 6–32V input in an ultra-compact 0.63" × 0.52" form factor. Based on the AP63357 synchronous buck converter from Diodes Inc., it provides up to 3.5A continuous output with high efficiency, integrated MOSFETs, and compre... [View product details](https://littlebirdelectronics.com.au/products/sparkfun-babybuck-regulator-breakout-5v-ap63357) | [Markdown version](https://littlebirdelectronics.com.au/products/sparkfun-babybuck-regulator-breakout-5v-ap63357.md) --- ## [2-way Fast Charge Buck Module (Compatible with Raspberry Pi 4B & Jetson Nano)](https://littlebirdelectronics.com.au/products/2-way-fast-charge-buck-module-compatible-with-raspberry-pi-4b-amp-jetson-nano) **Brand:** DFRobot **Price:** $9.80 **Stock:** In stock (Local: 0, Supplier: 43) **SKU:** DF-DFR0849 A dual-output USB fast-charging buck module with wide 6–32V input range and adjustable 3–12V output. It supports multiple fast-charging protocols including Qualcomm QC 3.0, Huawei FCP/SCP, and Samsung AFC, making it compatible with 99% of smartphones on the market. Both USB channels operate indep... [View product details](https://littlebirdelectronics.com.au/products/2-way-fast-charge-buck-module-compatible-with-raspberry-pi-4b-amp-jetson-nano) | [Markdown version](https://littlebirdelectronics.com.au/products/2-way-fast-charge-buck-module-compatible-with-raspberry-pi-4b-amp-jetson-nano.md) --- ## [Buck Converter - 6-20V to 5V/3A](https://littlebirdelectronics.com.au/products/buck-converter-6-20v-to-5v-3a) **Brand:** SparkFun **Price:** $25.30 **Stock:** In stock (Local: 0, Supplier: 1435) **SKU:** SF-COM-18375 This is a high grade DC Buck converter that inputs 6 to 12V and outputs 5V up to 3A or 15W. With good thermal performance and protection, this DC block is perfect for battery applications (such as SLAs or LFPs) that need to power a USB or 5V device even while the input is varying (battery charge/... [View product details](https://littlebirdelectronics.com.au/products/buck-converter-6-20v-to-5v-3a) | [Markdown version](https://littlebirdelectronics.com.au/products/buck-converter-6-20v-to-5v-3a.md) --- ## [4-way Fast Charge Buck Module (Compatible with Raspberry Pi 4B & Jetson Nano)](https://littlebirdelectronics.com.au/products/4-way-fast-charge-buck-module-compatible-with-raspberry-pi-4b-amp-jetson-nano) **Brand:** DFRobot **Price:** $13.55 **Stock:** In stock (Local: 0, Supplier: 39) **SKU:** DF-DFR0852 A 4-channel USB buck converter module with built-in fast-charge protocol support. Accepts 6–32V input and provides adjustable 3–12V output (default 5V) across four independent USB ports, each capable of triggering fast-charge negotiation for compatible devices. The module automatically negotiates... [View product details](https://littlebirdelectronics.com.au/products/4-way-fast-charge-buck-module-compatible-with-raspberry-pi-4b-amp-jetson-nano) | [Markdown version](https://littlebirdelectronics.com.au/products/4-way-fast-charge-buck-module-compatible-with-raspberry-pi-4b-amp-jetson-nano.md) --- ## [60W Adjustable DC-DC Buck Converter Module](https://littlebirdelectronics.com.au/products/60w-adjustable-dc-dc-buck-converter-module) **Brand:** DFRobot **Price:** $17.25 **Stock:** In stock (Local: 0, Supplier: 427) **SKU:** DF-DFR1025 A high-efficiency 60W DC-DC buck converter module that steps down 9–15V input to an adjustable 0.6–5.1V output at up to 18A. Ideal for powering WS2812 RGB LED strips, servos, and other devices requiring low voltage with high current from a 12V or 11.1V lithium battery source. Features 92% typical... [View product details](https://littlebirdelectronics.com.au/products/60w-adjustable-dc-dc-buck-converter-module) | [Markdown version](https://littlebirdelectronics.com.au/products/60w-adjustable-dc-dc-buck-converter-module.md) --- ## [DC-DC Buck Converter 6~14V to 5V/8A](https://littlebirdelectronics.com.au/products/dc-dc-buck-converter-6-14v-to-5v-8a) **Brand:** DFRobot **Price:** $15.15 **Stock:** In stock (Local: 1, Supplier: 60) **SKU:** DF-DFR0753 This 40W high power DC-DC Buck converter offers a 6~14V input voltage range and up to 5V/8A output. Featuring a small body, high conversion ratio, strong heat dissipation, and large current output, the module is compatible with all 5V main-boards, and can work as an SMD element to be directly sol... [View product details](https://littlebirdelectronics.com.au/products/dc-dc-buck-converter-6-14v-to-5v-8a) | [Markdown version](https://littlebirdelectronics.com.au/products/dc-dc-buck-converter-6-14v-to-5v-8a.md) --- ## [Adafruit DC Power BFF Add-On for QT Py](https://littlebirdelectronics.com.au/products/adafruit-dc-power-bff-add-on-for-qt-py-ada5882) **Brand:** Adafruit **Price:** $16.55 **Stock:** In stock (Local: 0, Supplier: 6) **SKU:** AF-5882 The Adafruit DC Power BFF Add-On lets you power your QT Py or Xiao development board from a DC source up to 20V. The on-board MPM3610 integrated buck converter steps down the input to 5V at up to 1A, with no heat sink required — providing plenty of power for LEDs, WiFi, displays, and small motors... [View product details](https://littlebirdelectronics.com.au/products/adafruit-dc-power-bff-add-on-for-qt-py-ada5882) | [Markdown version](https://littlebirdelectronics.com.au/products/adafruit-dc-power-bff-add-on-for-qt-py-ada5882.md) --- ## Pagination Page 1 of 3 — showing products 1–20 of 53. Append `&page={n}` to this URL to fetch any page from 1 to 3. - [Next page (2) →](https://littlebirdelectronics.com.au/products.md?page=2&q=ubec+dc+dc+step+down+buck+converter+5v+3a+output) - [First page](https://littlebirdelectronics.com.au/products.md?page=1&q=ubec+dc+dc+step+down+buck+converter+5v+3a+output) - [Last page (3)](https://littlebirdelectronics.com.au/products.md?page=3&q=ubec+dc+dc+step+down+buck+converter+5v+3a+output) --- ## Contact Us **Little Bird Electronics Pty Ltd** ABN: 15 634 521 449 - **Phone:** 1300 240 817 - **Fax:** (02) 8319 2017 - **Email:** help@littlebird.com.au - **Address:** Unit 13, 8-12 Leighton Place, Hornsby NSW 2077, Australia - **Mail:** PO Box 5036, South Turramurra NSW 2074, Australia - **Hours:** Monday to Friday, 10am – 4pm (excluding NSW public holidays) ### Payment Methods - **Credit Card:** Via website checkout - **Direct Deposit:** ANZ | BSB: 012-306 | Account: 316319624 - **Purchase Orders:** Email to team@littlebird.com.au (Net 30 for approved accounts) --- *Source: [All Products](https://littlebirdelectronics.com.au/products)*