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High Performance Linear Voltage Regulators for Automotive Applications

Infineon launched two new voltage regulator families targeting automotive applications. New products offer wide input voltage range (2.75V to 40) and very low quiescent 5µA - 40µA (e.g. for systems connected permanently to battery). Its new loop concept combines fast regulation and very good stability requiring only one small ceramic output capacitor of 1µF.

 

Infineon Linear Voltage Regulator for Automobiles

 

Requirement flow

Both families are designed to be operational in harsh automotive environment and implement automotive specific feature sets. To improve further stability and robustness products were designed and tested with LV124 requirements flow, which is unique and helps to improve quality in the field and minimize design effort and cost.

Automotive LTR Diagram

Key Features

  • Ultra-low drop voltage
  • Ultra-low quiescent current
  • Excellent line transient
  • Extended operating range (3V to 40V)
  • Very fast regulation loop
  • Watchdog, Reset features
 

Benefits

  • Suitable for very low cranking (stop and start)
  • Energy efficiency -Save battery life
  • Design for harsh automotive environment
  • Stable operation during cranking or other input voltage variations
  • Smaller output cap
  • Ease of use for automotive power design
 

Applications

  • Automotive General Modules
  • Powertrain
  • Body & Convenience
  • Active Antenna
  • Safety Applications E-Mobility
  • Motor Control
  • Data Processing
  • Automation
 

Part Families

  • TLS805: Optimized for very low quiescent current operation down to 5µA
  • TLS810: Optimized for very low quiescent current operation down to 5µA
  • TLS820: Offer low dropout voltage of 10mV and an extended input operating range down to 3V
  • TLS850: Offer low dropout voltage of 10mV and an extended input operating range down to 3
 

Associated Boards

  • TLS810D1EJV50BOARDTOBO1
  • TLS810C1EJV33BOARDTOBO1
  • TLS805B1SJVBOARDTOBO1
 

Resources

 

Block diagrams

Infineon Voltage Regulators AVR805-8102 Infineon Voltage Regulators AVR805-810

 

Automotive Power Supply

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Resource document

Voltage Regulators

Download Infineon’s Automotive Selection Guide

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Infineon

Linear Voltage Regulator

View Infineon’s new Linear Voltage Regulators

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Infineon

Infineon’s NEW PMBus SupIRBUCK™

Easy-to-use, fully integrated and highly efficient DC-DC regulator with I2C/PMBus interface.