The Texas Instruments TPS7B4255QDYBRQ1 is a 300 mA AEC-Q100 automotive tracking LDO in a 5-pin SOT-23 package. It accepts a wide 3 V to 40 V input and keeps the output a fixed offset below it, suiting off-battery sensor rails.
Key Specifications
| Manufacturer | Texas Instruments |
| Exact Manufacturer Part Number | TPS7B4255QDYBRQ1 |
| Product Category | Power Management – Voltage Regulators |
| Series / Family | TPS7B4255-Q1 |
| Package / Case | 5-SOT-23 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C to +150°C |
| Power Supply | 3 V to 40 V (tracking output) |
| Output Current | 300 mA |
| Output | Tracking (follows input) |
| Input | 3 V to 40 V |
| Grade | Automotive AEC-Q100 |
| Lifecycle Status | Active |
| Official Documentation | View official documentation |
Key Features
- 300 mA automotive tracking LDO
- Tracking output follows input
- Wide 3 V to 40 V input
- AEC-Q100 qualified
- Reverse-polarity protection
- 5-pin SOT-23 package
Applications
- Automotive sensor supplies
- Off-battery rails
- Tracking regulators
- Automotive electronics
Sourcing
Availability, lead time, date code and commercial terms are subject to confirmation at the time of quotation.
Quality
CHIPER sources brand-new, unused components and provides quality inspection, shortage and long lead-time sourcing, and one-stop BOM procurement. Every part is verified before shipment.
FAQ
What does a tracking LDO do?
It keeps the output a fixed offset below the input, useful for off-battery automotive rails.
Is it automotive qualified?
Yes, it is AEC-Q100 qualified with an extended -40°C to +150°C range.