Product Overview
TL1963A-33DCYR from TI is a 1.5A LDO with 40V maximum input. Fixed 3.3V output. 340mV dropout at 1.5A. Fast transient response. SOT-223.
Working Principle
LDO with PNP pass transistor for low dropout. 40V max input for automotive. Fixed 3.3V output. 340mV dropout at 1.5A. Current limit and thermal shutdown protection. Fast transient for digital loads.
Pin Description
| Pin | Name | Function |
|---|---|---|
| 1 | GND/ADJ | Ground |
| 2 | VOUT | 3.3V output |
| 3 | VIN | 2.1-40V input |
| 4 | EN | Enable (optional) |
Applications
- Automotive 3.3V regulation
- Industrial 24V bus POL
- Post-regulation after DC-DC
Alternative Models
| Manufacturer | Part Number | Notes |
|---|---|---|
| TI | TL1963A-ADJDCYR | Adjustable version |