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LMR51420XDDCR Breakout
IC REG BUCK ADJ 2A 4.5-36V SOT23-6
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Design a Custom BoardAbout This Component
Synchronous buck converter with 4.5V to 36V input range and 2A continuous output current. Operates at 500kHz or 1.1MHz selectable switching frequency with integrated compensation and soft-start for minimal external components. Includes cycle-by-cycle current limiting, hiccup short-circuit protection, and thermal shutdown; suitable for industrial power supplies, motor drives, and appliances.
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 | LMR51420XDDCR |
| Package | SOT-23-6 |
| Pin Count | 6 |
| Current - Output | 2A |
| 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) |
What's Included
BILL OF MATERIALS
- 1x LMR51420XDDCR 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