MIC94051YM4-TR Power Switch Controller ?C Integrated Load Switch, SOT-23 Package

MIC94051YM4-TR Overview

The MIC94051YM4-TR is a high-performance power switch designed for efficient load control in industrial and embedded systems. This integrated device delivers precise, low-resistance switching with a compact footprint, making it ideal for space-constrained applications. With robust thermal and electrical characteristics, it supports reliable operation under demanding conditions. Its low on-resistance and fast switching capability reduce power loss and heat generation, enhancing system efficiency. The device is optimized for seamless integration into power management and protection circuits, offering engineers a dependable solution for controlling DC loads. For detailed technical support and purchasing options, visit Fabricant de circuits intégrés.

MIC94051YM4-TR Technical Specifications

Paramètres	Spécifications
Plage de tension de fonctionnement	2,7 V à 5,5 V
Maximum Continuous Load Current	3 A
On-Resistance (RDS(on))	45 m?? at 4.5 V
Reverse Current Blocking	Yes, supports load disconnection
Enable Input Voltage Threshold	Logic compatible with 1.4 V (typical)
Plage de température de fonctionnement	-40 ??C to +125 ??C
Type d'emballage	4-pin SOT-23
Reverse Current Leakage	Typically <1 ??A at 5.5 V

MIC94051YM4-TR Key Features

• Faible résistance à l'allumage : Minimizes power dissipation, reducing heat generation and improving overall system efficiency in power switching applications.
• Large gamme de tensions de fonctionnement : Supports 2.7 V to 5.5 V supply rails, enabling versatile compatibility with various industrial and embedded power systems.
• Reverse Current Blocking Capability: Prevents undesired current flow when the switch is off, enhancing protection for sensitive loads and preventing backfeed.
• Logic-Compatible Enable Input: Simplifies system control by allowing direct interface with low-voltage logic signals without additional level shifting circuitry.
• Boîtier compact SOT-23 : Saves PCB space, allowing integration into compact device designs without compromising thermal performance.
• High Load Current Handling: Delivers continuous current up to 3 A, suitable for moderate power loads in industrial and consumer electronics.
• Wide Temperature Range Support: Ensures reliable operation in harsh environments, from -40 ??C to +125 ??C, suitable for automotive and industrial applications.

MIC94051YM4-TR Advantages vs Typical Alternatives

This device offers a compelling combination of low on-resistance and reverse current blocking in a compact package, outperforming many standard load switches. Its low leakage current and logic-level enable input simplify power management designs while ensuring higher efficiency and improved reliability. Compared to discrete MOSFET solutions, it reduces component count and design complexity, delivering consistent performance across a broad temperature range.

Applications typiques

• Power switching and load control in industrial power management systems, where efficient and reliable DC load switching is critical for system stability and energy savings.
• Battery-powered devices requiring low quiescent current and precise load disconnect functionality to extend operational life.
• Embedded systems that demand compact, high-current switches compatible with low-voltage control logic.
• Automotive electronic modules requiring robust, temperature-tolerant power switches to manage auxiliary loads and protect sensitive circuits.

MIC94051YM4-TR Brand Info

Manufactured by MIC (Microchip Integrated Circuits), the MIC94051YM4-TR is part of a family of advanced power switches designed for efficient load control. MIC is recognized for delivering highly integrated semiconductor solutions with a focus on quality and reliability. This product embodies the brand??s commitment to supporting engineers with devices that combine performance, compactness, and ease of integration, making it a preferred choice in demanding industrial, automotive, and embedded applications.

FAQ

What is the maximum load current the MIC94051YM4-TR can handle?

The device supports a continuous load current of up to 3 A, making it suitable for moderate power applications where reliable switching of DC loads is required.

How does the reverse current blocking feature improve system protection?

Reverse current blocking prevents current from flowing back into the switch when it is turned off. This protects sensitive downstream circuitry from potential damage caused by backfeed currents, enhancing overall system reliability.

Is the enable input compatible with low-voltage logic signals?

Yes, the enable input is designed for logic-level operation, typically activating at voltages as low as 1.4 V, which allows direct interfacing with modern low-voltage microcontrollers and logic devices without additional components.

What operating temperature range does the MIC94051YM4-TR support?

The device is rated for operation from -40 ??C up to +125 ??C, ensuring robust performance in both industrial and automotive environments where temperature extremes are common.

What are the packaging options for this power switch?

This model is offered in a compact 4-pin SOT-23 package, which provides a balance between minimal PCB footprint and effective thermal dissipation, ideal for space-constrained designs.