LM338T Adjustable Voltage Regulator Module 5A Power Supply Board
LM338T Adjustable Voltage Regulator Module 5A Power Supply Board
LM338T Linear Adjustable Voltage Regulator Module — 5A Power Supply Board
Take precise control of your bench power supply with this versatile LM338T Linear Adjustable Voltage Regulator Module. Whether you're prototyping circuits, testing electronics, powering DIY amplifiers, or running lab experiments, this compact and robust board delivers smooth, continuously adjustable DC output with up to 5A of current — all in a reliable FR4 package with a thickened heat sink.
Made in Mainland China.
Key Features
- Wide Input Compatibility: Accepts AC 0–24V or DC 0–35V input, making it adaptable to a broad range of transformer and power source setups.
- Continuously Adjustable Output: Dial in any DC voltage from 1.5V to 30V with smooth, linear control — perfect for powering devices with varying voltage needs.
- High Current Capacity: Delivers up to 5A maximum output current via the proven LM338T voltage stabilizing design, ensuring stable and dependable power delivery.
- Durable Construction: Built on a dual-sided FR4 circuit board combined with a thickened aluminum heat sink for enhanced thermal management and long-term durability.
- Power LED Indicator: Built-in LED gives you instant visual confirmation that the board is powered and operating.
- Versatile Applications: Ideal for electronic repair, laboratory testing, DIY power supplies, audio amplifier projects, and general equipment power needs.
Specifications
| Input Voltage | AC 0–24V or DC 0–35V |
| Output Voltage | DC 1.5V–30V (continuously adjustable) |
| Maximum Output Current | 5A |
| Board Material | FR4 (dual-sided) |
| Board Dimensions | 60 × 48 × 38 mm |
| Indicator | Power LED |
| Regulation Type | Linear (LM338T IC) |
Package Includes
- 1 × LM338T Adjustable Voltage Regulator Power Supply Board
Notes
- Due to varying availability, audio capacitors may be sourced from different high-quality brands. Product images are for reference only.
- Colors may appear slightly different due to monitor/screen settings.
- Please allow ±1mm–10mm variance due to manual measurement.
For guidance on electrical safety standards and low-voltage equipment, visit the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: What input types does the LM338T voltage regulator module support?
A: This module supports both AC input (0–24V) and DC input (0–35V), making it compatible with a wide range of transformers and power sources commonly used in lab and DIY electronics environments.
Q: What is the output voltage range of this adjustable power supply board?
A: The output is continuously and linearly adjustable from DC 1.5V to DC 30V, allowing you to fine-tune the voltage for virtually any electronic device or circuit under test.
Q: Is the LM338T module suitable for audio amplifier projects?
A: Yes — the board's stable 5A output and use of high-quality audio capacitors make it well-suited for powering audio amplifiers, in addition to lab testing, electronic repair, and other DIY power supply applications.
Q: How does the module handle heat during high-current operation?
A: The module is equipped with a thickened aluminum heat sink mounted on the dual-sided FR4 circuit board, which efficiently dissipates heat during sustained or high-current operation to keep the regulator running reliably.