L5300GJ

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

The L5300GJ is a low dropout linear regulator with microprocessor control functions, including power on reset, low voltage reset, early warning, and ON/OFF control. It features a typical quiescent current of 55 μA in very low output current mode when enabled, dropping to 5 μA when disabled. The device offers high output voltage accuracy of 2% due to on-chip trimming, maintained over wide temperature, line, and load variations. It supports an operating DC supply voltage range from 5.6 V to 40 V, with a maximum output current of 300 mA. Stability is ensured with only low value ceramic capacitors (≥220 nF) on the output.

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

• Integrated microprocessor control functions including power on reset, low voltage reset, and early warning circuits
• Very low consumption mode with quiescent current dropping to 5 μA when not enabled
• Precision output voltage with 2% accuracy maintained across wide temperature ranges
• Wide stability range requiring only low value ceramic capacitors for operation

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

• Automotive systems requiring AEC-Q100 qualified components
• Microprocessor power supply monitoring and control
• Low dropout voltage regulation in automotive electronics
• Systems requiring early warning for input voltage drops

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

Verify component authenticity through authorized STMicroelectronics distributors or official channels. Confirm RoHS and REACH compliance status via official documentation before integration. Check for moisture sensitivity handling requirements during storage and assembly. Ensure ordering suffixes match specific package and tape/reel configurations if applicable. Validate datasheet revisions to ensure compatibility with design specifications.

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

Select this regulator for applications requiring integrated reset and monitoring functions alongside voltage regulation. Consider the 5V fixed output and 300 mA current capability for powering microprocessors. Evaluate the 5.6 V minimum input voltage requirement against system supply rails. Assess thermal performance given the -40°C to +150°C operating range and internal thermal shutdown protection.

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

The L5300GJ belongs to STMicroelectronics' family of low dropout regulators designed for automotive applications. It integrates power management features typically found in separate components, reducing board space. The device is part of the broader PMIC portfolio, focusing on reliability and precision for critical automotive electronic systems.

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

Official substitute part numbers are not explicitly confirmed in the provided source material. Consult STMicroelectronics documentation for direct replacements or cross-reference with similar AEC-Q100 qualified LDOs featuring integrated reset functions.