L4995AKTR

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

The L4995AKTR is a monolithic integrated 5 V linear low-dropout (LDO) voltage regulator from STMicroelectronics, designed for automotive microprocessor systems. It delivers up to 500 mA output current with a low dropout voltage and operates within a DC supply voltage range of 5.6 V to 31 V. The device features a p-channel MOS regulating element and pre-trimmed reference voltage for high precision. It includes integrated watchdog, enable, and externally programmable reset circuits. The component is AEC-Q100 qualified and housed in a POWERSSO-24 package.

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

• Integrates externally programmable reset and enable functions for flexible system control
• Includes watchdog timer and reset circuit sensing down to 1 V output
• Provides thermal shutdown and short-circuit protection against high power dissipation
• Operates across a wide junction temperature range suitable for harsh environments

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

• Automotive microprocessor system power supplies
• Engine control units requiring robust voltage regulation
• Body electronics and convenience modules
• Infotainment system power distribution

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

Verify the specific suffix AKTR corresponds to the required package and tape-and-reel configuration. Confirm AEC-Q100 qualification status matches project requirements. Ensure input voltage transients do not exceed the specified limits during operation. Check compatibility with external capacitors for programmable reset and watchdog timing.

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

Select this variant when both enable and externally programmable reset functionalities are required. Compare against L4995JTR or L4995KTR if different package types or feature sets are needed. Consider the 500 mA current capability and 5 V fixed output for standard logic levels. Evaluate thermal performance given the POWERSSO-24 package constraints.

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

The L4995 family consists of monolithic 5 V regulators available in 12-pin and 24-pin packages. Variants include L4995A with enable and reset, L4995R with reset only, and standard versions. The L4995AKTR specifically denotes the Automotive grade version with enabled features in the 24-pin POWERSSO package.

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

Public confirmed substitute part numbers are not provided in the source material.