L4949EP013TR

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

The L4949EP013TR is a monolithic multifunction low-dropout voltage regulator manufactured by STMicroelectronics, designed for automotive microcomputer systems. It provides a fixed 5V output with an operating DC supply range of 5V to 28V and withstands transient voltages up to 40V. The device delivers up to 100mA output current with a dropout voltage below 0.5V at full load. Integrated features include a power-on reset circuit with programmable delay, an input voltage sense comparator, thermal shutdown, and short-circuit protection. It is housed in a SO-20W package.

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

• Monolithic integrated 5V voltage regulator with very low dropout characteristics
• Integrated power-on reset circuit with externally programmable pulse delay
• Input voltage sense comparator for supervising system conditions
• Robust protection against thermal overload and short circuits

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

• Automotive microcomputer controlled systems
• Power-on reset generation for embedded processors
• Input voltage supervision and low-voltage warning circuits

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

Verify component authenticity through authorized channels as the datasheet indicates this product line may be obsolete or restricted. Confirm specific ordering suffixes match required packaging formats. Ensure compliance with environmental directives such as RoHS before integration. Review absolute maximum ratings carefully to prevent damage during installation.

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

Select this component when a fixed 5V regulation with auxiliary monitoring functions is required. The SO-20W package accommodates multiple pins for reset and sense outputs. Consider the 100mA current limit and dropout specifications relative to the load requirements. Evaluate the need for external capacitors to program reset delays and ensure stability under varying supply conditions.

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

This part belongs to the L4949E family of multifunction regulators from STMicroelectronics. It shares core electrical characteristics with variants like the L4949EDTR-E but utilizes a different package configuration. The series is engineered specifically for demanding environments where integrated supervision reduces external component count.

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

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