MAX6470UT18AD3

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

The MAX6470UT18AD3 is a low-dropout linear regulator with an integrated microprocessor reset circuit, manufactured by Analog Devices Inc. (Maxim Integrated). It delivers up to 300mA of load current and features a fixed 1.8V output voltage. The device operates within an input voltage range of 2.5V to 5.5V. Key electrical specifications include a dropout voltage of 210mV at full load, a supply current of 82µA, and shutdown current of 0.1µA. It provides ±2.0% accuracy over temperature and includes protections against reverse current, thermal overload, and short circuits.

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

• Integrates a low-dropout linear regulator with a fully functional microprocessor reset circuit in a single package.
• Offers guaranteed 300mA output current capability with low quiescent supply current for battery-powered applications.
• Includes comprehensive protection mechanisms such as input reverse current blocking, thermal shutdown, and short-circuit limiting.

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

• Microprocessor power supply systems requiring integrated reset functionality
• Battery-operated portable electronic devices
• Embedded systems with strict space constraints

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

Verify the specific suffix AD3 corresponds to the TDFN-8 package variant when sourcing. Confirm RoHS compliance status as legacy Maxim parts may have varying environmental declarations. Check manufacturer lifecycle status for availability assurance. Ensure the selected distributor handles lead-free components if required by assembly processes. Validate pinout compatibility during board layout finalization.

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

Select this component when a compact solution combining regulation and reset timing is required. The fixed 1.8V output suits core voltages for many logic families. Consider the 210mV dropout voltage against minimum input supply levels. The 82µA operating current makes it suitable for energy-efficient designs. Verify that the integrated reset timeout options meet system startup requirements without external components.

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

This part belongs to the MAX6469–MAX6484 family of 300mA LDO regulators with internal reset circuits. These devices are designed to simplify power management in microprocessor-based systems by reducing component count. The family offers various preset output voltages and package options including UCSP, SOT23, and TDFN.

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

Other members of the MAX64xx family with compatible output voltages and packages may serve as substitutes. Verify that alternative parts maintain similar reset timeout characteristics and protection features. Cross-reference package dimensions for mechanical fit.