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LDO Functional Safety

Enhance Automotive Safety and Reliability with Robust LDOs for Critical DC-DC Power Conversion

The increasing complexity of functions in today’s cars is driving home the importance of functional safety standards. Driver assistance and safety systems in modern cars need robust and dependable electronic components. The safety risks resulting from random hardware failures or systematic hardware/software errors must be reduced as much as possible throughout the product’s foreseeable lifetime.

Guidelines and standards have been developed for the process, the technology and the methods used for implementing functional safety in embedded designs. The aim of functional safety standards is to prevent unacceptable risks caused by malfunctions in electrical or electronic systems, such as the safety-critical systems that are powered from an automobile's 12V battery. Implementing robust safety measures in these systems can dramatically reduce the risk of malfunction in the automotive DC-DC power conversion applications.

Our LDOs offer a variety of safety features to help you implement a more reliable DC-DC power design.

System Reset, Detect and Manage

Feature

MCP1824

MIC5233

MCP1792
MCP1793
MCP1799

Fault Prevention

Self Diagnostic

System Diagnostic

Fault Mitigation
Power-On Reset (POR) ● ● ● ✔      
VDD Input Undervoltage ● ● ●     ✔  
VREG Output Undervoltage ●         ✔  
Power Good Voltage Check ●            
Overcurrent Protection (OCP) ● ● ●       ✔
Overtemperature Shutdown ● ● ●       ✔

For additional information about our functional safety-enabled products and supporting documentation, please visit our Functional Safety page.

Legend:
● Available in all devices
○ Available in some devices
✔ Functional Safety Feature Available
- Not Available
 		 Definitions:
Fault Prevention - Silicon feature that prevents damage, unintended configuration changes or invalid operation
Self-Diagnostic - Silicon/software feature that identifies if the silicon is working as it should be
System Diagnostic - Silicon/software feature that identifies if the system is working as it should be
Fault Mitigation - Silicon feature that can be used by the system to transition to a safe state after a fault is detected

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