Texas Instruments TPS7B4253QDDARQ1
| Parameters | |
|---|---|
| Series | Automotive, AEC-Q100 |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-PowerSOIC (0.154", 3.90mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 150°C |
| Voltage - Input (Max) | 40V |
| Output Type | Adjustable |
| Current - Output | 300mA |
| Supplier Device Package | 8-SO PowerPad |
| Output Configuration | Positive |
| Current - Quiescent (Iq) | 18 µA |
| Current - Supply (Max) | 400 µA |
| Control Features | - |
| Voltage - Output (Min/Fixed) | 1.5V |
| Voltage - Output (Max) | 40V |
| Number of Regulators | 1 |
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) |
| PSRR | 70dB (100Hz) |
| Voltage Dropout (Max) | 0.52V @ 200mA |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TPS7B4253 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TPS7B4253QDDARQ1 Automotive LDO Regulator 45V Input
The TPS7B4253QDDARQ1 from Texas Instruments is a high-reliability, 150mA low-dropout (LDO) voltage regulator specifically designed for automotive applications, featuring exceptional accuracy, low noise performance, and robust protection in a 8-pin SO PowerPAD package. This AEC-Q100 qualified device delivers a fixed 5.0V output with maximum input voltage capability of 45V, making it ideally suited for automotive systems requiring stable voltage regulation under harsh electrical environments including load-dump conditions. Its combination of high voltage tolerance, precision regulation, and automotive-grade reliability makes it perfect for powering microcontrollers, sensors, and infotainment systems in vehicles where operational safety and long-term durability are paramount.
Key Features & Applications
This LDO regulator operates with a remarkably low dropout voltage of typically 300mV at full load while maintaining high accuracy (±1.5% over temperature) and excellent line/load regulation. It features ultra-low noise performance (40μVRMS typical) and high power supply rejection ratio (60dB at 1kHz), ensuring clean power delivery to noise-sensitive applications. The device incorporates comprehensive protection features including current limit, thermal shutdown, and reverse current protection, along with an enable pin for power management control. Its wide input voltage range (3V to 45V) withstands automotive transients, while the low quiescent current of 40μA (typical) minimizes power consumption during operation.
The TPS7B4253QDDARQ1 is specifically designed for automotive electronics including engine control units, advanced driver assistance systems (ADAS), body control modules, and in-vehicle networking systems. It provides stable power to sensors, microcontrollers, and communication interfaces in automotive infotainment and cluster displays. The regulator is also used in automotive lighting systems, power steering systems, and battery management systems where reliable voltage regulation under extreme conditions is essential. Its robustness makes it suitable for industrial applications requiring high-voltage tolerance and reliability in harsh environments.
Alternative Low-Dropout Regulators
● NCV4264-5.0CST33T3G (ON Semiconductor): A 150mA automotive LDO regulator with 45V input capability and fault protection features for harsh automotive environments.
● LM2936HVBMA-5.0/NOPB (Texas Instruments): A 50mA high-voltage LDO regulator with ultra-low quiescent current, designed for automotive battery-connected applications.
● TLF30684QV50ATMA1 (Infineon Technologies): A 350mA safety-qualified LDO regulator with comprehensive diagnostic features for automotive safety applications.
● BD00FC0WEFJ-LB (ROHM Semiconductor): A 500mA high-voltage LDO regulator with wide input range and low dropout voltage for automotive power systems.
