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AL8861WT-7
IC LED DRIVER BUCK 40V 1A TSOT-25
Diodes Incorporated
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Design a Custom BoardAbout This Component
Hysteresis-mode DC-DC buck converter optimized for LED driver applications, accepting 4.5V to 40V input and delivering up to 1A output current. Integrates power switch and high-side current sensing with external dimming control via DC or PWM signal on VSET pin. Achieves 97% efficiency with integrated protections including LED short, open-circuit, and overtemperature.
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.
Specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Diodes Incorporated |
| Part Number | AL8861WT-7 |
| Package | TSOT-23-5 |
| Pin Count | 5 |
| Current - Output / Channel | 1A |
| Frequency | 1MHz |
| Number of Outputs | 1 |
| Topology | Step-Down (Buck) |
| Type | DC DC Regulator |
| Voltage - Supply (Max) | 40V |
What's Included
BILL OF MATERIALS
- 1x AL8861WT-7 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