MIC69303YML-TR

Product Overview

The MIC69303YML-TR from Microchip Technology is a single-output linear voltage regulator for positive adjustable output rails. It operates from an input up to 5.5 V and provides an adjustable output from 1.63 V to 4.5 V at up to 3 A. The device uses a surface-mount 12-VFDFN exposed-pad package (12-VDFN (4x4)) and is specified for operation from -40°C to 125°C. Control and monitoring features include enable and error flag functions, while over-current and over-temperature protection are included.

Key Features

• Positive adjustable linear regulator with one output
• Input voltage up to 5.5 V
• Adjustable output range of 1.63 V to 4.5 V
• Output current rating of 3 A
• Maximum dropout voltage of 0.5 V at 3 A
• Quiescent current of 5 mA and maximum supply current of 75 mA
• Enable and error flag control features
• Over-current and over-temperature protection
• Operating temperature range of -40°C to 125°C
• Surface-mount 12-VFDFN exposed-pad package (12-VDFN (4x4))

Applications

• Board-level positive-rail regulation in general-purpose electronic assemblies
• Adjustable post-regulation downstream of an upstream supply
• Power delivery to low-voltage digital, mixed-signal, or peripheral circuit blocks
• Embedded and instrumentation power supplies requiring an adjustable output

Design & Procurement Notes

Design considerations should center on the allowable input and output window: the regulator accepts inputs up to 5.5 V and can produce an adjustable output from 1.63 V to 4.5 V, so the input-to-output differential must remain adequate for the required load current while accounting for the specified 0.5 V maximum dropout at 3 A. The enable and error flag functions can be used for supply sequencing and status monitoring in a board power architecture. The 5 mA quiescent current and 75 mA maximum supply current should be included in the power budget when the input source is limited. The surface-mount 12-VFDFN exposed-pad package (12-VDFN (4x4)) should be incorporated into the PCB layout with attention to current handling and thermal dissipation paths. The over-current and over-temperature features are device-level protections and should be evaluated alongside system-level requirements, and the -40°C to 125°C operating range should be checked against the intended ambient conditions. For procurement, verify that the target assembly process supports the surface-mount package.