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MIC29500-3.3WT

MCHPMIC29500-3.3WT

Microchip Technology
Linear Voltage Regulator IC Positive Fixed 1 Output 5A TO-220-3
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Overview

The MIC29500-3.3WT is a high-current, high-accuracy LDO regulator providing a fixed 3.3V output at up to 5A. It is designed for applications requiring minimal voltage drop and rapid response to load changes, featuring a maximum dropout of 0.6V at full load. This device includes robust protection features such as reverse-battery protection, overcurrent limiting, and thermal shutdown.

Why Choose This Part

This regulator offers an extremely low dropout voltage of 0.6V at the full 5A rating and maintains high precision with a 1 percent guaranteed output voltage tolerance. It features a fast transient response and comprehensive safety mechanisms including 60V transient protection and reverse-lead protection.

Applications

High-Efficiency Linear Supplies
Used in power systems where the efficiency of a linear regulator must be maximized by operating with very low input-to-output voltage differentials.
Battery-Powered Equipment
Ideal for high-current battery applications due to its reverse-polarity protection and low ground current.
Processor Power Rails
Provides clean, stable 3.3V power for digital logic, microprocessors, and FPGAs that exhibit fast current transients.
Automotive Electronics
Utilized in vehicle systems requiring protection against load dump transients and reverse battery conditions.

Key Specifications

Output Type Fixed
Mounting Type Through Hole
Package / Case TO-220-3
Current - Output 5A
Protection Features Over Current, Over Temperature, Reverse Polarity, Transient Voltage
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC
Voltage - Input (Max) 26V
Voltage Dropout (Max) 0.6V @ 5A
Supplier Device Package TO-220-3
Voltage - Output (Min/Fixed) 3.3V

Getting Started

When integrating this TO-220 device, ensure adequate heat sinking to manage power dissipation (Pd = [Vin - Vout] * Iout). Use a minimum 10 microfarad output capacitor with appropriate ESR for stability, as specified in the datasheet for the Super beta PNP process. Connect the input, output, and ground pins directly to low-impedance traces to maintain regulation under high-current 5A loads.

Categories

Power Management > LDO Voltage Regulators