LT1120MJ8

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

The LT1120MJ8 is a micropower positive linear regulator and free collector comparator integrated on a single monolithic chip by Analog Devices. It operates with an input voltage range of 4.5V to 36V, delivering over 125mA of output current while consuming only 40μA of supply current. The device features a dropout voltage of 0.6V at 125mA load, which decreases with lower currents. It includes a Class B output 2.5V reference capable of sourcing or sinking current for use as a supply splitter or auxiliary output. A shutdown pin allows logic control of the output state.

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

• Integrates a micropower positive regulator and a free collector comparator on a single chip
• Provides high output current capability exceeding 125mA with minimal quiescent power consumption
• Includes a Class B 2.5V reference output that can source or sink current for flexible power distribution

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

• Micropower voltage regulation in battery-operated systems
• Supply splitting and auxiliary output generation using the integrated reference
• Logic-controlled power management via the dedicated shutdown pin

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

Verify the specific suffix 'MJ8' against official Analog Devices documentation to confirm the ceramic DIP package and military-grade temperature rating. Ensure compatibility with existing board layouts for the 8-pin CERDIP footprint. Cross-reference datasheet specifications for line and load regulation to validate performance requirements for the target application environment.

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

Select this component when combining low-power regulation with comparator functionality is required in a single package. The wide input voltage range suits applications with varying supply conditions. Consider the thermal characteristics of the ceramic package and the specific shutdown logic requirements. Verify that the 2.5V reference meets the precision needs for any auxiliary circuitry.

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

The LT1120 series combines linear regulation and comparison functions. The MJ8 suffix typically denotes a military-grade variant in the 8-lead CERDIP package. This family targets applications requiring efficient power management with additional signal processing capabilities without increasing component count.

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

Consult official Analog Devices substitution guides for verified equivalents. Generic LDOs may lack the integrated comparator or specific reference features.