EmbeddedRelated.com
    Parts   Power Management  LDO Voltage Regulators    MIC29300-5.0WT
MIC29300-5.0WT

MCHPMIC29300-5.0WT

Microchip Technology
Linear Voltage Regulator IC Positive Fixed 1 Output 3A TO-220-3
Active
Datasheet Digi-Key Mouser Compare Prices

Overview

The MIC29300-5.0WT is a high-current, high-accuracy, low-dropout (LDO) linear voltage regulator capable of providing a 3A output. It features a guaranteed maximum dropout voltage of 0.6V at the full 3A load, making it suitable for high-efficiency power conversion in demanding environments. This device is protected against overcurrent, overtemperature, reverse polarity, and transient voltage spikes.

Why Choose This Part

The primary advantage is the combination of a high 3A current rating with a very low dropout voltage of 0.6V, minimizing power dissipation. It offers comprehensive protection circuitry, including reverse polarity and 60V load dump protection, which simplifies system-level safety design. The TO-220 package ensures excellent thermal management for continuous high-power operation.

Applications

High-Efficiency Linear Power Supplies
Used as a main regulator or high-current post-regulator to provide clean 5V power from a higher voltage DC source.
Battery-Powered Equipment
Ideal for applications requiring high output current with minimal voltage loss to extend battery life.
Automotive Electronics
Robust protection features like transient voltage and reverse polarity protection make it suitable for vehicle power systems.
Post-Regulator for Switching Supplies
Provides a low-noise 5V rail by filtering the ripple from high-current switching DC-DC converters.

Key Specifications

Output Type Fixed
Mounting Type Through Hole
Package / Case TO-220-3
Current - Output 3A
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 @ 3A
Supplier Device Package TO-220-3
Voltage - Output (Min/Fixed) 5V

Getting Started

When designing with the MIC29300-5.0WT, ensure that a high-quality 10 microfarad (or larger) capacitor is placed on the output to maintain stability. The TO-220 package requires an appropriate heatsink if the power dissipation (Vin - Vout * Iout) exceeds the thermal limits of the package in free air. Refer to the datasheet's 'Heatsink Requirements' section to calculate the necessary thermal resistance for your specific ambient temperature.

Also Consider

MIC29500-5.0WT MCHPMicrochip Technology - A higher-current alternative in the same family capable of delivering up to 5A.

Categories

Power Management > LDO Voltage Regulators