MAX6473TA30AD3+

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

The MAX6473TA30AD3+T is a low-dropout linear regulator with an integrated microprocessor reset circuit. It delivers up to 300mA of load current and features a fixed 3.0V output voltage. The device operates within an input voltage range of 2.5V to 5.5V and consumes only 82µA of supply current, reducing to 0.1µA in shutdown mode. It includes manual reset capability via the MR pin and offers four selectable reset timeout periods. The component is housed in an 8-pin TDFN-EP package and is specified for operation from -40°C to +85°C.

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

• Integrated microprocessor reset circuit with selectable timeout options
• Manual reset input (MR) for asserting reset while output is within specification
• Low dropout voltage ensuring stable regulation under varying load conditions
• Input reverse current protection and thermal shutdown capabilities

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

• Handheld Instruments such as PDAs and Palmtops
• PCMCIA Cards and USB Devices
• Cellular and Cordless Telephones
• Notebook Computers and Digital Cameras
• Bluetooth Modules and Wireless LAN applications

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

Verify the specific suffix AD3 corresponds to the required reset threshold accuracy and timeout delay before ordering. Confirm that the TDFN-EP package variant meets your board layout thermal requirements. Ensure compatibility with lead-free manufacturing processes if RoHS compliance is mandatory for your assembly line. Cross-reference the exact part number with the manufacturer's latest datasheet revision to confirm availability status.

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

Select this component when a fixed 3.0V output is required alongside manual reset functionality. The inclusion of the MR pin distinguishes it from variants lacking manual control. Consider the 8-pin TDFN package for its thermal dissipation advantages over smaller footprints. Verify that the 300mA current rating sufficiently covers the peak load demands of the target microprocessor system.

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

This device belongs to the MAX6469–MAX6484 family of ultra-low quiescent current LDO regulators. The family shares common core features including integrated reset supervisors and low dropout characteristics. Variants within the series differ primarily by output voltage presets, reset thresholds, timeout delays, and specific feature sets like manual reset or remote feedback sense pins.

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

Direct replacements within the same family include MAX6473TA19AD3+T, MAX6473TA22AD3+T, and MAX6473TA26AD3+T, which share identical packages and features but offer different preset output voltages.