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Infineon TLS850B0TE High Performance 3.3 V Low Dropout Linear Voltage Regulators

Shenzhen Mingjiada Electronics Co., Ltd., as a professional distributor of electronic components, leverages its extensive industry experience and broad supply chain resources to provide customers with Infineon's high-performance TLS850B0TE 3.3 V low-dropout linear voltage regulator (LDO). This product, renowned for its exceptional performance and reliability, finds extensive application in automotive electronics, industrial control, communication equipment, and other fields.

TLS850B0TE Product Overview and Technical Features

The Infineon TLS850B0TE is a high-performance low-dropout linear voltage regulator specifically designed for demanding application environments, featuring a fixed output voltage of 3.3 V, providing stable and clean power supply for various electronic systems.

The TLS850B0TE has an input voltage range of 3 V to 40 V and a quiescent current of only 20 μA, making it an ideal choice for automotive or other power systems permanently connected to a battery. A new loop concept combines fast regulation with extremely high stability. When the output current is below 100 mA, the typical dropout voltage is less than 120 mV. The operating range starts at just 3 V input voltage (extended operating range). This makes the TLS850B0TE suitable for automotive systems operating under startup conditions. The TLS850B0TE device can be switched on/off via an enable function. Internal protection features, such as output current limiting and over-temperature shutdown, prevent immediate device damage caused by faults such as output short-circuit to ground, overcurrent, or over-temperature.

Key performance parameters of the TLS850B0TE:

Output voltage: 3.3V fixed output with accuracy up to ±2%

Output current capability: Maximum 500mA continuous output current

Low dropout characteristic: Typical dropout voltage of only 200mV at 300mA load current

Wide input voltage range: 3.8V to 40V, suitable for various power supply environments

Ultra-low quiescent current: Typical value of only 40μA, suitable for battery-powered applications

Operating temperature range: -40°C to +150°C, meeting automotive-grade application requirements

Protection features: Integrated over-temperature protection, short-circuit protection, and reverse polarity protection

Package type: PG-TO252-3 (DPAK) package, facilitating PCB layout and thermal design

The TLS850B0TE employs Infineon's advanced BCD (Bipolar-CMOS-DMOS) process technology, integrating high-performance power devices and precision analog circuits on a single chip to achieve a perfect balance of high efficiency and high reliability. Its internal architecture includes a precision reference voltage source, error amplifier, overcurrent and overheat protection circuits, and power adjustment transistors, forming a complete linear voltage regulator solution.

Features of the TLS850B0TE:

Wide input voltage range: 3.0 V to 40 V

Fixed output voltage: 3.3 V

Output voltage accuracy ≤ ±2%

Output current capability up to 500 mA

Ultra-low current consumption, typical value 20 μA

Very low dropout voltage, typical value 120 mV @100mA

Stable with a 1 μF ceramic output capacitor

Enable

Over-temperature shutdown

Output current limit

Wide temperature range

Green product (compliant with RoHS standards)

AEC certification

Advantages of TLS850B0TE:

Suitable for extremely low start-up voltage (supports start-up and shutdown from Vin = 3 V)

Energy-saving: extends battery life

Low inrush: no reset required

Reduced external components: reduces PCB size and bill of materials cost

Typical application areas for TLS850B0TE

Infineon TLS850B0TE, with its wide input voltage range, high-precision output, and exceptional reliability, is widely used across multiple industries.

Automotive electronic systems

As an automotive-grade device compliant with the AEC-Q100 standard, the TLS850B0TE is particularly suitable for various automotive electronic applications:

Body control modules (BCM): Provides stable power supply for microcontrollers, CAN/LIN bus interfaces, and sensors

Infotainment systems: Power management for navigation hosts, displays, and audio systems

Advanced driver-assistance systems (ADAS): Power regulation for radar and camera modules

Automotive Lighting Systems: Pre-regulation for LED driver circuits

Electric Window and Seat Control: Logic power supply for motor driver circuits

In automotive applications, the TLS850B0TE can withstand harsh conditions such as cold starts and sudden load drops, ensuring stable system operation under various operating conditions.

Industrial Automation Equipment

Industrial environments demand high reliability and interference resistance from power supplies, making the TLS850B0TE an ideal choice:

PLCs and industrial controllers: Clean power supply for CPUs and I/O modules

Variable frequency drives and servo drives: Power management for control circuits and sensors

Industrial communication equipment: Power regulation for RS485/CAN bus interfaces

HMI panels: Power supply for touchscreens and display drivers

Field instruments: Power processing for pressure and temperature transmitters

Communication infrastructure

In communication equipment, the TLS850B0TE provides low-noise power supply for sensitive circuits:

5G base station equipment: Power management for RF front-end and baseband processing

Optical modules and fibre optic equipment: Power regulation for laser drive circuits

Network switches and routers: Power supply for ASIC and PHY chips

Data centre power systems: Auxiliary power supply for management controllers

Consumer Electronics and Smart Home

Although an automotive-grade device, the TLS850B0TE is also suitable for high-end consumer applications:

Smart home appliance control boards: Power management for Wi-Fi/Bluetooth modules

Security cameras: Power regulation for image sensors and processors

Smart lighting systems: Power supply for LED drivers and control circuits

Portable medical devices: Power management for battery-powered devices