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KF33BD-TR Breakout
IC REG LINEAR 3.3V 500MA 8-SOIC
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Design a Custom BoardAbout This Component
Low-dropout linear voltage regulator providing 3.3V at up to 500mA output current. Features 0.4V typical dropout voltage, ultra-low 500µA quiescent current in ON mode, and logic-controlled shutdown capability. Ideal for battery-powered and low-noise applications requiring minimal external components and thermal management.
Package: SOIC-8 (3.9×4.9mm) · 8 pins
Why does this need a breakout?
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | STMicroelectronics |
| Part Number | KF33BD-TR |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 1 mA |
| Current - Supply (Max) | 12 mA |
| Number of Regulators | 1 |
| Output Configuration | Positive |
| Output Type | Fixed |
| Voltage Dropout (Max) | 0.7V @ 500mA |
| Voltage - Input (Max) | 20V |
What's Included
BILL OF MATERIALS
- 1x KF33BD-TR 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