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RT9078-18GJ5 Breakout
IC REG LDO 1.8V 300MA TSOT-23-5
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Design a Custom BoardAbout This Component
Low-dropout linear regulator with fixed 1.8V output and 300mA maximum load current. Features 2µA quiescent current, 0.15V dropout at 300mA, and operates from 1.2V to 5.5V input. Includes enable control, current limiting, over-temperature protection, and active discharge function for battery-powered and portable applications.
Package: TSOT-23-5 · 5 pins
Why does this need a breakout?
This 0.95 mm pitch SMD package is incompatible with breadboards and difficult to hand-solder. A breakout board brings the five pins to standard 0.1″ spacing, enabling rapid prototyping without reflow equipment. Essential for evaluating precision analog ICs like current-sense amplifiers in development circuits.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Richtek USA Inc. |
| Part Number | RT9078-18GJ5 |
| Package | TSOT-23-5 |
| Pin Count | 5 |
| Current - Output | 300mA |
| Number of Regulators | 1 |
| Output Configuration | Positive |
| Output Type | Fixed |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 1.8V |
What's Included
BILL OF MATERIALS
- 1x RT9078-18GJ5 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