MIC5365-1.8YMT-TZ

Product Overview

The MIC5365-1.8YMT-TZ from Microchip Technology is a positive fixed-output linear voltage regulator intended for compact surface-mount power regulation. The device provides a 1.8 V output at up to 150 mA from an input voltage up to 5.5 V, with a maximum dropout of 0.38 V at 150 mA. It includes enable control and protection against over-current and over-temperature conditions. The 4-TMLF (1x1) package with exposed pad supports space-constrained board layouts, and the operating range is -40°C to 125°C. Quiescent current is 39 µA, while PSRR is 80 dB to 65 dB from 1 kHz to 10 kHz.

Key Features

• Fixed positive 1.8 V output from a single regulator
• 150 mA maximum output current
• Maximum input voltage of 5.5 V
• 0.38 V maximum dropout at 150 mA
• 39 µA quiescent current
• 80 dB to 65 dB PSRR from 1 kHz to 10 kHz
• Enable control feature
• Over-current and over-temperature protection
• Operating temperature range of -40°C to 125°C
• 4-TMLF (1x1) exposed-pad surface-mount package

Applications

• Local 1.8 V rail for low-current digital logic in embedded boards
• Battery-operated portable devices that use enable control to manage a 1.8 V regulator output
• Compact sensor circuits requiring a fixed positive voltage from an input up to 5.5 V

Design & Procurement Notes

Designers should confirm that the input source remains at or below 5.5 V and that headroom is sufficient for the 0.38 V dropout at 150 mA. The enable control feature allows the regulator to be enabled or disabled, so control levels should be checked against the system voltage. The 4-TMLF (1x1) exposed-pad package requires attention to pad layout and thermal management, especially when operating within the -40°C to 125°C range or near 150 mA. The 39 µA quiescent current and 80 dB to 65 dB PSRR from 1 kHz to 10 kHz support low-power regulation, and the device includes over-current and over-temperature protection. For selection, verify that the fixed 1.8 V output and 150 mA rating match the load requirement.