L4995AK

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

The L4995AK is a monolithic integrated 5 V voltage regulator from STMicroelectronics, designed for automotive applications. It delivers up to 500 mA output current with low dropout voltage characteristics. The device operates within an input voltage range of 5.6 V to 31 V and features a p-channel MOS regulating element. It includes integrated watchdog, enable, and externally programmable reset circuits. The component is AEC-Q100 qualified and supports junction temperatures from -40 °C to 150 °C.

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

• Integrates watchdog timer and externally programmable reset circuit for system supervision
• Features enable input for controlling voltage regulator operation
• Provides thermal shutdown and short circuit protection mechanisms

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

• Supplying microprocessor systems in automotive environments
• Automotive electronic control units requiring stable 5 V power
• Systems needing integrated reset and watchdog functionality

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

Verify the specific suffix 'AK' against official STMicroelectronics documentation to confirm package type and tape/reel configuration. Ensure the part number matches the required automotive qualification standards. Confirm availability status as product lifecycles may change. Cross-reference ordering codes with authorized distributors to avoid counterfeit components.

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

Select this component when a fixed 5 V output with 500 mA capability is required for automotive microprocessors. The integrated reset and watchdog features reduce external component count. Consider the POWERSSO-24 package for thermal management if higher power dissipation is expected. Verify input voltage stability does not exceed the 31 V maximum limit.

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

The L4995 belongs to a family of low drop voltage regulators available in 12 and 24 pin packages. Variants include L4995J, L4995R, and L4995A, differing by integrated features such as reset or enable inputs. This family is designed specifically for flexible supply solutions in automotive microprocessor systems.

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

Check for direct substitutes within the L4995 family based on feature requirements. Verify equivalent automotive qualification and package compatibility before substitution.