---
product_id: 683930990
title: "Buck Regulator Module, Ultra-light Ultra-thin DC 3.5-5V to 3.3V DC-DC Step Down Buck Regulator Module"
brand: "tyenaza"
price: "$20.92"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/683930990-buck-regulator-module-ultra-light-ultra-thin-dc-3-5
store_origin: US
region: United States of America
---

# Ultra-efficient 3.5-5V to 3.3V step-down Supports up to 400mA peak output current Ultra-light & ultra-thin design Buck Regulator Module, Ultra-light Ultra-thin DC 3.5-5V to 3.3V DC-DC Step Down Buck Regulator Module

**Brand:** tyenaza
**Price:** $20.92
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your innovation with featherlight precision!

## Quick Answers

- **What is this?** Buck Regulator Module, Ultra-light Ultra-thin DC 3.5-5V to 3.3V DC-DC Step Down Buck Regulator Module by tyenaza
- **How much does it cost?** $20.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/683930990-buck-regulator-module-ultra-light-ultra-thin-dc-3-5)

## Best For

- tyenaza enthusiasts

## Why This Product

- Trusted tyenaza brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Featherweight & Slim:** Ultra-thin, ultra-light form factor fits discreetly into any compact, battery-powered project.
- • **Energy-Smart Efficiency:** Low ESR capacitor and low power consumption ensure longer battery life and cooler operation.
- • **Robust Current Delivery:** Delivers a reliable 300mA continuous current with 400mA short bursts to power demanding modules.
- • **Versatile Compatibility:** Optimized for lithium battery systems, MCUs, WiFi modules, smart home devices, and more.
- • **Seamless Power Conversion:** Effortlessly steps down 3.5-5V input to a stable 3.3V output, perfect for sensitive electronics.

## Overview

The Buck Regulator Module by Tyenaza is a high-quality, ultra-thin DC-DC step-down converter that efficiently transforms 3.5-5V input into a stable 3.3V output. Designed for lithium battery-powered systems, it supports continuous currents up to 300mA and short bursts up to 400mA, making it ideal for MCUs, WiFi modules, smart home automation, and more—all while maintaining low power consumption and compact size.

## Description

Specification: Input voltage :DC 3.5-6v  Output voltage :DC 3.3v  The maximum output current for a long time is 300mA  The maximum output current in short time is 400mA  High precision: plus or minus 2%  Resting current :8uA  Short circuit current :30mA  Current protection :500mA  Working temperature: 25℃~ + 85℃  Weight: Approx.0.5g/0oz   Package list: 1 x Buck Regulator Module Attention :  This is a DC-DC voltage converter module,Must be noted when using:  1 Input voltage can not be greater than the maximum input range 2 Output power can not be greater than the maximum load for a long time 3 Input power must be greater than the output power, because the power consumption of the module itself

## Features

- Low ESR Cap.Compatible DD0403MA Series LDO Module,Very suitable for lithium battery-powered
- Applications: 3.3V MCU ARM CPU FPGA/CPLD ,5V 3.7V TO 3.3V lithium battery-powered systems ,3.3V Motor Toy ,WIFI esp8266 Module ,CCTV camera ,Wireless Module:Nrf24l01 CC1101 CC2500 CC2530 Zigbee ,Smart home / home automation ,Battery Charger ,Pre-Regulato
- Long time maximum output current 300mA
- Short time maximum output current 400mA
- 100% brand new and high qualityLow power consumption

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Tyenaza |
| Part number | Tyenazak3r4fz086o |
| Manufacturer reference | Tyenazak3r4fz086o |
| Item Package Quantity | 1 |

## Images

![Buck Regulator Module, Ultra-light Ultra-thin DC 3.5-5V to 3.3V DC-DC Step Down Buck Regulator Module - Image 1](https://m.media-amazon.com/images/I/71LTe1oO0zL.jpg)
![Buck Regulator Module, Ultra-light Ultra-thin DC 3.5-5V to 3.3V DC-DC Step Down Buck Regulator Module - Image 2](https://m.media-amazon.com/images/I/61gCPDBJg5L.jpg)
![Buck Regulator Module, Ultra-light Ultra-thin DC 3.5-5V to 3.3V DC-DC Step Down Buck Regulator Module - Image 3](https://m.media-amazon.com/images/I/715lpiVDHSL.jpg)
![Buck Regulator Module, Ultra-light Ultra-thin DC 3.5-5V to 3.3V DC-DC Step Down Buck Regulator Module - Image 4](https://m.media-amazon.com/images/I/71oron+KU+L.jpg)
![Buck Regulator Module, Ultra-light Ultra-thin DC 3.5-5V to 3.3V DC-DC Step Down Buck Regulator Module - Image 5](https://m.media-amazon.com/images/I/71yKVWoSlZL.jpg)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-07*