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LMR14030SQDDARQ1 Breakout
IC REG BUCK ADJ 3.5A 8SOPWR
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Adjustable synchronous buck regulator IC with 3.5A output current capability in an 8-pin SO package with integrated PowerPad for enhanced thermal management. Operates from 4.5V to 42V input with adjustable output voltage programming via external resistor divider. Commonly used in automotive, industrial, and telecom power supplies requiring compact buck conversion with high efficiency and thermal performance.
Package: SOIC-8-1EP (3.9×4.9mm, EP) · 8 pins
Why does this need a breakout?
8-pin SOIC with exposed pad is difficult to hand-solder reliably due to tight 1.27mm pitch and thermal management requirements. A breakout board brings pins to standard 0.1" spacing for breadboard prototyping while providing proper pad routing and thermal dissipation for audio amplifiers and gate drivers.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | LMR14030SQDDARQ1 |
| Package | SOIC-8-1EP (3.9×4.9mm, EP) |
| Pin Count | 8 |
| Current - Output | 3.5A |
| Frequency - Switching | 200kHz ~ 2.5MHz |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Topology | Buck |
| Voltage - Input (Max) | 40V |
| Voltage - Input (Min) | 4V |
| Voltage - Output (Max) | 28V |
| Voltage - Output (Min/Fixed) | 0.8V |
What's Included
BILL OF MATERIALS
- 1x LMR14030SQDDARQ1 soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS