L4989D013TR

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The L4989D013TR is an automotive-grade, low-power voltage regulator manufactured by STMicroelectronics. It provides a fixed 5 V output with a maximum current of 150 mA. The device operates within a DC supply voltage range of 5.6 V to 31 V and features a p-channel MOS regulation element for low drop voltage performance. It includes integrated watchdog and reset circuits suitable for microprocessor systems. The component is qualified to AEC-Q100 standards and supports junction temperatures from -40°C to 150°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrates watchdog and reset functions for reliable microprocessor system supply in automotive environments
• Utilizes a p-channel MOS output stage to achieve very low quiescent current and low drop voltage
• Includes programmable reset delay and watchdog timer via external capacitors
• Provides thermal shutdown and short circuit protection for robust operation

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Supplying microprocessor systems in automotive applications
• Automotive electronic control units requiring AEC-Q100 qualification
• Low power voltage regulation where watchdog functionality is required

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix 'D' against official datasheets to confirm package type and tape/reel specifications. Confirm AEC-Q100 qualification status for your specific automotive application requirements. Check for obsolete status or lifecycle changes as automotive components may have limited availability. Ensure input voltage ranges match your system's 5.6 V to 31 V operating window.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 5 V output with 150 mA capability is needed alongside integrated watchdog and reset features. It is suitable for designs requiring AEC-Q100 compliance and wide temperature operation. Consider the low drop voltage characteristics if input voltage margins are tight. Verify that the SOIC-8 package fits your PCB layout constraints.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

The L4989 series belongs to STMicroelectronics' portfolio of automotive low-power voltage regulators. These devices are designed specifically for demanding automotive environments, offering high precision output voltage and comprehensive protection features. The series integrates essential monitoring functions like watchdogs and resets, reducing the need for external components in microprocessor supply designs.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.