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MIC29502WU

MCHPMIC29502WU

Microchip Technology
Linear Voltage Regulator IC Positive Adjustable 1 Output 5A TO-263-5
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Overview

The MIC29502WU is a high-current, low-dropout (LDO) positive voltage regulator capable of providing up to 5A of output current. It features an adjustable output voltage, 1% initial accuracy, and a very low ground current of 70mA at full load. This regulator is designed for high-efficiency power conversion in demanding environments, offering extensive protection against overcurrent, overtemperature, and reverse polarity.

Why Choose This Part

The device offers a robust protection suite, including reverse-battery and 60V transient protection, which eliminates the need for external clamping diodes in many designs. Its extremely fast transient response makes it ideal for powering high-performance processors that experience sudden load changes.

Applications

High-Efficiency Linear Supplies
Providing stable power for high-current digital circuits where switching noise must be minimized.
Battery-Powered Systems
Utilizing the low dropout voltage and reverse battery protection to maximize runtime and safety.
Automotive Power Electronics
Leveraging load dump and transient protection to handle the harsh electrical environment of vehicle power rails.
Logic Supply Post-Regulators
Acting as a clean final stage for high-power switching regulators to reduce ripple for sensitive CPUs and FPGAs.

Key Specifications

Output Type Adjustable
Mounting Type Surface Mount
Package / Case TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
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-263-5
Voltage - Output (Min/Fixed) 1.25V

Getting Started

When designing with the MIC29502WU, ensure a minimum output capacitor of 10 microfarads is used for stability, though larger values may be required for optimal transient response. Use the Enable pin for CMOS/TTL compatible power sequencing and monitor the error flag to detect output dropout or current limiting conditions.

Categories

Power Management > LDO Voltage Regulators