MAX1976EZT110+

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

The MAX1976EZT110+ is a fixed positive low-dropout linear regulator manufactured by Analog Devices Inc. (Maxim Integrated). It operates from an input supply voltage range of +1.62V to +3.6V and delivers a guaranteed continuous load current of 300mA. The device features a preset output voltage of 1.1V with high accuracy, utilizing an internal pMOS pass transistor to maintain low supply current independent of the load. It includes an active-low open-drain reset output that asserts for at least 70ms after regulation is reached. The component is housed in a thin SOT-23 package.

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

• Provides a fixed 1.1V output voltage with ±0.5% accuracy
• Delivers 300mA continuous load current with low dropout characteristics
• Includes an active-low open-drain reset output with 70ms delay
• Operates within a wide input voltage range of 1.62V to 3.6V

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

• Portable battery-powered equipment requiring stable low-voltage rails
• Cellular phones and wireless communication devices
• Laptops and notebook computers
• Personal digital assistants (PDAs)
• Handheld instruments

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

Verify the specific suffix '110' confirms the 1.1V output variant when sourcing. Confirm RoHS compliance status as indicated in official documentation. Check for availability constraints or obsolescence notices directly from Analog Devices. Ensure the thin SOT-23 package dimensions match your PCB footprint requirements. Validate the reset pin configuration against your system's power-up sequence needs.

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

Select this component when a fixed 1.1V rail is required with high current capability up to 300mA. Consider the 70ms reset delay for timing-sensitive applications. Evaluate the input voltage range to ensure compatibility with the source supply. Compare dropout performance against other LDOs if operating near minimum input voltages. Verify thermal dissipation capabilities within the SOT-23 package for the expected load conditions.

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

The MAX1976 series belongs to Maxim Integrated's family of low-input-voltage LDO regulators designed for portable electronics. These devices are characterized by their ability to operate from single-cell lithium-ion batteries or NiMH/NiCd packs. The series integrates reset functionality to monitor output voltage stability, making them suitable for microprocessor systems requiring reliable power supervision during brown-out events.

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

Public confirmed substitute part numbers: MAX1976EZT110+T.