> **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).

# Adafruit USB Type C Power Delivery Dummy - I2C or Switchable

**Brand:** Adafruit

**URL:** https://littlebirdelectronics.com.au/products/adafruit-usb-type-c-power-delivery-dummy-i2c-or-switchable-ada5991 — [Markdown](https://littlebirdelectronics.com.au/products/adafruit-usb-type-c-power-delivery-dummy-i2c-or-switchable-ada5991.md)

## Pricing

- **Price:** $20.50
- **Stock:** In stock at supplier
- **Local warehouse:** 0 units
- **Supplier (Adafruit):** 100 units
- **SKU:** AF-5991

## Description

The Adafruit USB Type C Power Delivery Dummy (I2C or Switchable) lets you tap into USB-C Power Delivery to get 5V, 9V, 12V, 15V, 18V, or 20V from any compatible USB-C charger or wall adapter — no soldering required. Built around the HUSB238 PDL003A E-Marker variant, it can request up to 5A for a maximum of 100W over USB-C. Select your desired voltage using the on-board DIP switches for instant, no-code operation, or use the STEMMA QT / Qwiic I2C port to dynamically query available voltages and switch between them programmatically. A screw terminal block provides easy power output to your project. Key Features DIP Switch Voltage Selection – Choose 5V, 9V, 12V, 15V, 18V, or 20V with no microcontroller required I2C Control via STEMMA QT – Dynamically query and select PD voltages using I2C (DIP switch settings used at startup until I2C commands override) Up to 100W – Supports up to 20V at 5A with the E-Marker variant chip Screw Terminal Output – No-solder power connection to your project Power Good LED – Green LED indicates terminal block output is active (can be disabled) On/Off Switch Pads – Solder a switch between two pads to disconnect the internal pass FET USB Data Pads – D+/D- available on solderable pads for data applications No Soldering Required – DIP switches and terminal block for fully solderless setup Ideal For Powering robots, LED strips, displays, and motors from USB-C chargers Converting battery or DC-powered devices to USB-C power Projects needing more than 5V @ 2A — get up to 20V @ 5A Dynamic voltage selection in I2C-controlled power systems Package Contents 1× Adafruit USB Type C Power Delivery Dummy - I2C or Switchable Warning: Always unplug the USB PD cable before changing DIP switch settings to avoid accidentally selecting too high a voltage for your device. Verify that your downstream components can handle the selected voltage. Note: STEMMA QT / Qwiic cable not included. The actual voltage and current available depends on what your USB-C power source supports. Resources Adafruit HUSB238 Arduino Library (GitHub) – I2C query and voltage selection example code What is STEMMA QT?

**Product Type:** physical

## Images

- [Image 1](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCuxBJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--77983f479a929cbe4346e42a2971270f89f39c6e/image_fae0c044-98e1-4962-9f32-1e8fb55bf701.jpg)

- [Image 2](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCvBBJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--047f9859412ff1b5ca21c1d5a4a15ee195287cf4/image_751f3bf3-7674-4c63-a84b-9e184f3d8938.jpg)

- [Image 3](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCvRBJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--804077d1bb88477796a6c8b46e055c5393e71013/image_b8d233ab-23d8-465c-a9be-1f6d1659c081.jpg)

- [Image 4](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCvhBJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--b2f10e89c54f9a5ca54e7f23ae0754a510de6083/image_40af094f-9234-406d-b250-63c80224122b.jpg)

- [Image 5](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCvxBJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--1399743d95d9c11f2cedb085776d76813d097aeb/image_a35dc325-639a-4998-a0d2-d28da5d1725c.jpg)

- [Image 6](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCwBBJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--bcb62ecffff61f56e0ff6ccff8a4cce4395b7d97/image_d9b64457-54ca-4818-bf5d-14b34d5bbe39.jpg)

- [Image 7](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCwRBJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--e083ed1afdd90fa04c2f72ac47aeee53fa898462/image_96a51da3-b7d2-44b3-a55b-a9b93175b69e.jpg)

- [Image 8](https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCwhBJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--c2bb96b9caf0bdfe33d6ba85c74ce6e063d085ef/image_79fac801-a4bd-400c-9aa0-e00ab13cf8b9.jpg)

---

## Finding & Searching Products

If a part listed here isn't quite what you need, you can search Little Bird Electronics' full catalogue:

- **Search by keyword:** `GET https://littlebirdelectronics.com.au/products.md?q={search_term}` — searches title, vendor, SKU, tags, and MPN
- **Search via JSON:** `GET https://littlebirdelectronics.com.au/products.json?q={search_term}` — structured JSON results
- **Browse by collection:** `GET https://littlebirdelectronics.com.au/collections/{handle}.json` — products in a specific collection
- **Filter in-stock only:** `GET https://littlebirdelectronics.com.au/products.md?q={term}&in_stock=1`
- **Individual product detail:** `GET https://littlebirdelectronics.com.au/products/{handle}.md` — full specs, pricing, stock levels, variants

Search supports multi-word queries (AND logic). Examples:

- `https://littlebirdelectronics.com.au/products.md?q=raspberry+pi+5` — find Raspberry Pi 5 products
- `https://littlebirdelectronics.com.au/products.md?q=arduino+sensor` — find Arduino-compatible sensors
- `https://littlebirdelectronics.com.au/products.json?q=micro+bit` — find micro:bit products as JSON

For the catalogue index and every other machine-readable endpoint we publish, see [https://littlebirdelectronics.com.au/llms.txt](https://littlebirdelectronics.com.au/llms.txt).

---

## 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: [Adafruit USB Type C Power Delivery Dummy - I2C or Switchable](https://littlebirdelectronics.com.au/products/adafruit-usb-type-c-power-delivery-dummy-i2c-or-switchable-ada5991) ([Markdown](https://littlebirdelectronics.com.au/products/adafruit-usb-type-c-power-delivery-dummy-i2c-or-switchable-ada5991.md))*