MIC2951 Low-Dropout Voltage Regulator: Pinout, Equivalent and Datasheet

The following figure is the diagram of MIC2951 pinout.

Pinout

The followings are MIC2951 Footprint, and 3D Model.

Footprint

3D Model

The MIC2951 is “bulletproof” micropower voltage regulator with very low dropout voltage (typically 40mV at light loads and 250mV at 100mA), and very low quiescent current. Like its predecessor, the LP2951, the quiescent current of the MIC2951 increases only slightly in dropout, thus pro-longing battery life. The MIC2951 is pin for pin compatible with the LP2951, but offer lower dropout, lower quiescent current, reverse battery, and automotive load dump protection. The key additional features and protection offered include higher output current (150mA), positive transient protection for up to 60V (load dump), and the ability to survive an unregulated input voltage transient of -20V below ground (reverse battery). The MIC2951 has a tight initial tolerance (0.5% typical), a very low output voltage temperature coefficient which allows use as a low-power voltage reference, and extremely good load and line regulation (0.04% typical). This greatly reduces the error in the overall circuit, and is the result of careful design techniques and process control.

This article will introduce MIC2951 systematically from its features, pinout to its specifications, applications, also including MIC2951 datasheet and so much more.

● High accuracy 3.3, 4.85, or 5V, guaranteed 150mA output

● Extremely low quiescent current

● Low-dropout voltage

● Extremely tight load and line regulation

● Very low temperature coefficient

● Use as regulator or reference

● Needs only 1 5μF for stability

● Current and thermal limiting

● Unregulated DC input can withstand -20V reverse battery and +60V positive transients

● Error flag warns of output dropout

● Logic-controlled electronic shutdown

● Output programmable from 1.24 to 29V

Microchip Technology MIC2951-03YM technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology MIC2951-03YM.

The following is the Block Diagram of MIC2951.

Block Diagram

The following is the Schematic Diagram of MIC2951.

Schematic Diagram

● Automotive electronics

● Voltage reference

● Avionics

● Cellular telephones

● Battery powered equipment

● SMPS post-regulator

● High efficiency linear power supplies

The following diagrams show the MIC2951 package.

Top View

Bottom View

End View

Detail “A”

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