Overview
The TPS745-Q1, produced by Texas Instruments, is a 500-mA ultra-low-dropout regulator (LDO) designed for automotive applications. This device is AEC-Q100 qualified, ensuring it meets the stringent requirements for automotive use. It is available in small packages, including a 6-pin WSON and an 8-pin VSON, both with wettable flanks for optical inspection. The regulator supports an input voltage range from 1.5 V to 6.0 V and an externally adjustable output range of 0.55 V to 5.5 V, making it highly flexible for various power regulation needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 1.5 to 6.0 | V |
| Output Current | 500 | mA |
| Output Voltage Range | 0.55 to 5.5 | V |
| Quiescent Current | 50 | nA |
| Temperature Range | -40 to 125 | °C |
| Package Types | 6-pin WSON, 8-pin VSON | |
| Package Size (WSON) | 2.00 mm × 2.00 mm | |
| Package Size (VSON) | 3.00 mm × 3.00 mm | |
| Thermal Shutdown | 170 °C (shutdown), 155 °C (reset) | °C |
| Accuracy at 25°C | ±0.85% | |
| Accuracy over Temperature | ±1.5% |
Key Features
- AEC-Q100 qualified for automotive applications with a temperature grade 1: -40°C to +125°C.
- Low quiescent current of 50 nA.
- Fast line and load transient performance.
- Externally adjustable output voltage range from 0.55 V to 5.5 V.
- Fixed output voltages for common voltage rails.
- Power-good (PG) output to monitor the status of the output voltage.
- EN input and PG output for sequencing multiple power supplies.
- Stable with small ceramic output capacitors.
- Integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) features.
- Internal foldback current limit to reduce thermal dissipation during short-circuit events.
Applications
- Automotive head units.
- Front and rear cameras.
- Automotive cluster displays.
- Telematics control units.
- Medium and short-range radar systems.
Q & A
- What is the input voltage range of the TPS745-Q1?
The input voltage range is from 1.5 V to 6.0 V. - What is the maximum output current of the TPS745-Q1?
The maximum output current is 500 mA. - What are the package options for the TPS745-Q1?
The device is available in 6-pin WSON and 8-pin VSON packages. - What is the temperature range for the TPS745-Q1?
The operating temperature range is -40°C to 125°C. - Does the TPS745-Q1 have power-good functionality?
Yes, it has a power-good (PG) output to monitor the status of the output voltage. - What safety features does the TPS745-Q1 include?
The device includes integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) features. - Is the TPS745-Q1 suitable for automotive applications?
Yes, it is AEC-Q100 qualified for automotive use. - What is the quiescent current of the TPS745-Q1?
The quiescent current is 50 nA. - Can the output voltage be adjusted?
Yes, the output voltage is externally adjustable from 0.55 V to 5.5 V. - Does the TPS745-Q1 support sequencing of multiple power supplies?
Yes, the EN input and PG output can be used for sequencing multiple power supplies.
