Overview
The TLE42764D is a low-dropout (LDO) voltage regulator manufactured by Infineon Technologies, designed for demanding automotive and industrial applications. It provides a stable output voltage with high accuracy, even under fluctuating input conditions. The device is particularly valued for its low quiescent current and robust protection mechanisms, such as thermal shutdown and reverse polarity protection. As an automotive-grade component, the TLE42764D complies with stringent industry standards, ensuring reliability in harsh environments. Its compact package and efficient performance make it a preferred choice for power management in electronic control units (ECUs), sensors, and other critical systems.
Structure and Working Principle
The TLE42764D integrates a pass transistor, error amplifier, and reference voltage circuit to maintain a stable output voltage. When the input voltage fluctuates, the error amplifier adjusts the pass transistor to compensate, ensuring minimal dropout voltage (the difference between input and output voltage). This design minimizes power loss and heat generation. The device also includes built-in protections like over-temperature shutdown, which disables the regulator if excessive heat is detected, and reverse polarity protection, safeguarding the circuit from damage due to incorrect power supply connections. These features enhance durability in automotive and industrial settings.
Key Features
The TLE42764D stands out for its low quiescent current (typically 40 µA), which reduces power consumption in standby modes—a critical feature for battery-operated systems. Its high accuracy (±2% output voltage tolerance) ensures reliable performance for sensitive electronics. Additional features include a wide operating temperature range (-40°C to +150°C), making it suitable for extreme environments. The device also supports capacitive loads up to 1 µF without requiring external components, simplifying circuit design. These attributes make it a versatile solution for power regulation in vehicles, industrial machinery, and consumer electronics.
Application Areas
The TLE42764D is widely used in automotive systems, such as engine control units (ECUs), infotainment systems, and advanced driver-assistance systems (ADAS). Its robustness and low power consumption make it ideal for always-on applications like keyless entry and tire pressure monitoring. In industrial settings, the regulator is employed in programmable logic controllers (PLCs), sensors, and communication modules. Its ability to operate in wide temperature ranges and resist electrical noise ensures reliable performance in factory automation and IoT devices.
Maintenance and Precautions
To ensure longevity, the TLE42764D should be installed with adequate heat dissipation, especially in high-current applications. A PCB layout with sufficient copper area or a heat sink is recommended. Avoid exceeding the maximum input voltage (40V) to prevent damage. Regular inspection for signs of overheating or voltage instability is advised. If used in automotive systems, ensure compliance with OEM specifications and environmental standards. Proper ESD handling during installation is also critical to avoid electrostatic damage.
B2B Procurement Guide
When sourcing the TLE42764D, verify the supplier’s certifications (e.g., ISO/TS 16949 for automotive components) to ensure quality. Bulk purchases (1,000+ units) typically reduce costs by 10-20%. Lead times vary but average 8-12 weeks for large orders. Consider alternative part numbers (e.g., TLE42764G) for enhanced features if needed. Request samples for testing compatibility before large-scale procurement. Reliable distributors include authorized partners of Infineon Technologies, such as Digi-Key, Mouser, and Arrow Electronics.
Related Manufacturers
- 主营：数字信号IC、NANR闪存、射频晶体管、微控制器-MCU、开关IC、放大器IC、电源管理IC、接口IC、存储器IC、滤波器、电阻器、电容器、集成电路 IC、时钟与定时Ic、驱动器IC、射频放大器IC、以太网 IC、RF 开关 IC、模数转换器-ADC
- 主营：xg-2121ca、ob5282cpa、xv-8000lk、sy7101abc、tps562201、rx-8581sa、pbhv9115t、sy8704fcc、rx-4571nb、sy8823quc、iw1677-03、tpf144-vr、rx-8025nb、ps767d301、rx-4035sa、vc7643-61、sg-210stf、va7310xgr、ra-4574sa、继电器、ln2401ams、rx-8581nb、emf30n02j、me62r332t、ap2005per
- 主营：ST、ADI、恩智浦、ELMOS、xilinx
- 主营：英飞凌IGBT、中车CRRC、传感器、光纤线、晶闸管、富士IGBT、整流桥、模块、驱动、集成IC、SIC 碳化硅