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MIC29502WT

MCHPMIC29502WT

Microchip Technology
Linear Voltage Regulator IC Positive Adjustable 1 Output 5A TO-220-5
Active3,086 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The MIC29502WT is a high-current, high-accuracy LDO voltage regulator capable of delivering up to 5A of output current with a low dropout voltage. It features an adjustable output voltage and an enable pin for power management, making it suitable for high-power digital logic supplies. The device includes robust protection circuitry such as overcurrent limiting, overtemperature shutdown, and reverse polarity protection.

Why Choose This Part

The regulator offers 1 percent output accuracy and a very low ground current, which remains efficient even at high loads. Its built-in protection against 60V transients and reverse battery installation provides significant system-level reliability in automotive and industrial applications. The TO-220-5 package allows for easy heatsink mounting to manage thermal loads at the maximum 5A rating.

Applications

High-Current Logic Supplies
Providing stable power to FPGAs, ASICs, and high-performance microprocessors requiring up to 5A.
Battery-Powered Systems
Utilizing low dropout voltage to extend the operational life of battery packs as voltage declines.
Industrial Power Regulation
Regulating 12V or 24V rails down to lower voltages in harsh environments with transient protection.
Post-Regulator for Switching Supplies
Reducing ripple and noise from switching converters for sensitive analog or RF circuitry.

Key Specifications

Output Type Adjustable
Mounting Type Through Hole
Package / Case TO-220-5
Control Features Enable
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
Voltage - Output (Max) 25V
Supplier Device Package TO-220-5
Voltage - Output (Min/Fixed) 1.25V

Getting Started

When designing with the MIC29502WT, ensure a minimum output capacitor is used for stability as specified in the datasheet, typically a low-ESR tantalum or electrolytic type. Calculate the feedback resistor divider based on the internal 1.24V reference to set your desired output voltage. For high-current operation, utilize wide PCB traces and a substantial heatsink to maintain a junction temperature below 125 degrees Celsius.

MIC29502 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
MIC29502WT (this part) 5-220 3,086
MIC29502WU 6-263 145
MIC29502WU-TR Tape & Reel 6-263 —