Table Of Contents
- Typical Body Applications
- Typical Powertrain Applications
- Typical Safety Applications
- Automotive MOSFETs
- Small Signal MOSFETs
- Power MOSFETs
- TEMPFET™: Temperature Protected Switches
- HITFET™: Low-Side Protected Switches
- Smart Multichannel Switches
- PROFET ™: Smart High-Side Switches
- SPOC™: SPI Power Controller
- Infineon® Auto LED Driver
- Motor Drivers
- Power Supply
- Automotive Transceivers
- System Basis Chips (SBCs)
- Powertrain System ICs
- Restraint System ICs
- Glossary
- Packages
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www.infineon.com/voltage-regulators
Power Supply
Why do we need linear voltage regulators?
In automotive ECUs, microcontrollers and other parts
of the system have to be supplied by a stable and reliable
voltage that is lower than the battery voltage (e.g. 3.3V
or 5V) and works over the entire temperature range
(from -40°C to 150°C).
A linear voltage regulator converts a DC input voltage
(e.g. battery line) into a pre-defined lower DC output
voltage (e.g. 5V). In spite of input voltage variations,
the output voltage remains steady and stable, as long as
the input voltage is greater than the output voltage.
Linear voltage regulators are the most frequently used
electronic power supplies in automotive applications.
Linear Voltage Regulators