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LMR51430XDDCR Breakout
IC REG BUCK ADJ 3A SOT23 4.5-36V
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Design a Custom BoardAbout This Component
Synchronous buck converter with 4.5V to 36V input range, 3A continuous output current, and adjustable output voltage. Features 500kHz or 1.1MHz switching frequency, internal compensation, integrated synchronous rectification, and protection including cycle-by-cycle current limit and hiccup-mode short-circuit protection. Designed for industrial applications including motor drives and power supplies with minimal external components.
Package: SOT-23-6 · 6 pins
Why does this need a breakout?
SOT-23-6 packages house precision regulators, voltage references, and level shifters with 0.95mm pin pitch—too fine for hand soldering and incompatible with breadboards. A breakout board provides through-hole headers for prototype work, eliminating soldering difficulty while enabling quick circuit iteration. Essential for developing with compact analog and power management ICs.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | LMR51430XDDCR |
| Package | SOT-23-6 |
| Pin Count | 6 |
| Current - Output | 3A |
| Frequency - Switching | 500kHz |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Topology | Buck |
| Voltage - Input (Max) | 36V |
| Voltage - Input (Min) | 4.5V |
| Voltage - Output (Max) | 34.2V |
| Voltage - Output (Min/Fixed) | 0.6V |
What's Included
BILL OF MATERIALS
- 1x LMR51430XDDCR 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
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL