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LM3489MMX/NOPB Breakout
IC BUCK REGULATOR CONTROLLER 8-VSSOP
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Design a Custom BoardAbout This Component
PWM buck converter controller IC in 8-pin VSSOP package. Operates from 4.5V to 28V input, designed for offline and isolated DC-DC applications with external power switches. Includes adjustable output voltage, current limiting, and thermal shutdown protection for efficient step-down power supply designs.
Package: MSOP-8 · 8 pins
Why does this need a breakout?
The 0.65mm pitch and tiny 3×3mm form factor make hand soldering challenging and impractical for breadboard prototyping. A breakout board converts this compact SMD package into a standard header layout, enabling reliable connections and rapid iteration without specialized soldering equipment or rework risk.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | LM3489MMX/NOPB |
| Package | MSOP-8 |
| Pin Count | 8 |
| Frequency - Switching | Up to 1MHz |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Output Type | Transistor Driver |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 35V |
What's Included
BILL OF MATERIALS
- 1x LM3489MMX/NOPB 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