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TPS54540DDAR Breakout
IC REG BUCK SPLIT RAIL ADJ 8SOPWR
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£8.91
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Design a Custom BoardAbout This Component
Synchronous buck converter IC with split-rail output capability for adjustable voltage regulation. Operates from 4.5V to 17V input with integrated high and low-side MOSFETs. Delivers up to 5.5A continuous current with built-in soft-start and cycle-by-cycle current limiting. Commonly used in multi-rail power supplies and industrial applications requiring independent voltage rails.
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 | TPS54540DDAR |
| Package | SOIC-8-1EP (3.9×4.9mm, EP) |
| Pin Count | 8 |
| Current - Output | 5A |
| Frequency - Switching | 100kHz ~ 2.5MHz |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Topology | Buck, Split Rail |
| Voltage - Input (Max) | 42V |
| Voltage - Input (Min) | 4.5V |
What's Included
BILL OF MATERIALS
- 1x TPS54540DDAR 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