Description
The Texas Instruments TPS73533QDRBRQ1 is a low-dropout (LDO) voltage regulator designed for automotive applications. It features a high power supply rejection ratio (PSRR) of 68 dB at 1 kHz, making it suitable for noise-sensitive systems. The device has a low quiescent current of 46 µA and can deliver up to 500 mA of output current.
The TPS73533QDRBRQ1 is available in a small 3-mm × 3-mm VSON-8 package and offers multiple output voltage options, including fixed and adjustable outputs. It has a fast startup time of 45 µs and is stable with a low-ESR output capacitor. The device also features excellent load and line transient response.
Overall, the TPS73533QDRBRQ1 is an efficient and reliable LDO regulator suitable for automotive applications where noise immunity and high PSRR are critical.
Features
According to the product information, the features of the TPS73533QDRBRQ1 are:
- Qualified for automotive applications (AEC-Q100 qualified)
- Low quiescent current: 46 µA
- High power supply rejection ratio (PSRR): 68 dB at 1 kHz
- Low noise: 13.2 µV RMS
- Fast startup time: 45 µs
- Stable with a low-ESR, 2-µF output capacitor
- Excellent load and line transient response
- 2% overall accuracy (load, line, temperature, VOUT > 2.2 V)
- Low dropout voltage: 280 mV at 500 mA
These features make it suitable for applications requiring low noise, high PSRR, and fast startup time in automotive or other harsh environments.
Package
The package type of TPS73533QDRBRQ1 is SON-8 (3mm x 3mm).
Pinout
The TPS73533QDRBRQ1 has a pin count of 8 (SON-8 package). The pin functions are:
- IN: Input voltage
- EN: Enable input (active low)
- VOUT: Output voltage
- GND: Ground
- VIN: Input voltage sense
- PGOOD: Power good indicator
- FB: Feedback input
- INTVCC: Internal voltage supply
Note that the pinout is specific to the SON-8 package, and may vary for other packages.
Manufacturer
The manufacturer of the TPS73533QDRBRQ1 is Texas Instruments (TI). Texas Instruments is a leading global semiconductor company that designs, manufactures, tests, and sells analog and embedded processing chips for a wide range of applications. The company was founded in 1930 and is headquartered in Dallas, Texas, USA.
Applications
The TPS73533QDRBRQ1 LDO voltage regulator is suitable for various automotive applications, including:
- Automotive infotainment systems
- Power management in vehicles
- Battery-powered devices
- Portable electronics
- Industrial control systems
Its AEC-Q100 qualification and high PSRR make it an excellent choice for noise-sensitive applications.
Equivalent
Based on the features and specifications, some equivalent products to TPS73533QDRBRQ1 could be:
- Linear Technology TLV7065 (similar low-dropout regulator with adjustable output range)
- Analog Devices ADM1030 (matching input and output voltage ranges, low noise and PSRR)
- Maxim Integrated MAX8907 (comparable power consumption and output accuracy)
Please note that this is not an exhaustive list, as equivalent products can have subtle differences in specifications or performance characteristics.
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