MIC2549A-1YM

Voltage - Supply (Vcc/Vdd):	Not Required
Base Part Number:	MIC2549A
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Fault Protection:	Current Limiting (Adjustable), Over Temperature, Reverse Current
Features:	Slew Rate Controlled, Status Flag
Input Type:	Non-Inverting
Rds On (Typ):	35 mOhm
Current - Output (Max):	3A
Series:	--
Voltage - Load:	2.7 V ~ 5.5 V
Interface:	On/Off
Output Type:	N-Channel
Output Configuration:	High Side
Ratio - Input:Output:	1:1
Number of Outputs:	1
Switch Type:	USB Switch
Part Status:	Active
Packaging:	Tube

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MIC2549A-1YM Application Fields & Working Principles

The MIC2549A-1YM is an active power-distribution switch, load driver and system-level power-management integrated circuit (PMIC). This device is designed to provide system-level power control and power-supply sequencing functions, as well as active load driving and ability to sense and monitor voltages.The MIC2549A-1YM is capable of regulating and controlling the power, both in terms of voltage and current, to ensure maximum performance from the system. It provides active high-side and low-side switches, enabling higher flexibility in power-supply sequencing and gating operations. Additionally, it is capable of providing load switching on individual pins and implementing Open Drain outputs, enabling protocol-specific operations. The MIC2549A-1YM is suitable for a variety of applications, such as driving external power devices in battery and digital media fxplasin modules, as well as in motor control, arduino and programmable logic control applications. It is also suitable for active load-switching operations in power management systems and shutdown systems.The MIC2549A-1YM is designed to reduce quiescent current to the absolute minimum while providing superior performance. It features two low-side switches, one high-side switch, two Open Drain (OD) outputs and two pins that are capable of performing active load switching. The device implements high-side load connected in parallel with the two low-side switch and two open-drain output, allowing the MIC2549A-1YM to extend its functionality and flexibility.The MIC2549A-1YM also features integrated voltage and current sensing and monitoring, which provide direct feedback to the system controller. This allows for better control over the system in terms of safety, power management and optimization. The device provides several system-level functions, including for instance, power-up sequencing, system shut down, fault protection and power gating operations. Additionally, the MIC2549A-1YM has various sleep modes such as active idle, standby and deep sleep, to reduce the power dissipation of the device and increase the system efficiency.In terms of applications, the MIC2549A-1YM is suitable for digital and analog applications, as well as audio installations and light industrial control. It is capable of handling high voltage, up to 21V and low-side voltages down to 0.7V, which makes the device suitable for a variety of applications.In conclusion, the MIC2549A-1YM is an enabling integrated device. Thanks to its system-level power-management capabilities, high-side and low-side switches, active load driving, voltage and current sensing and monitoring, as well as its integration of multiple sleep modes, it provides superior performance and superior power efficiency when compared to other available solutions. The MIC2549A-1YM is suitable for various applications, including digital and analog applications, audio installations, light industrial control and power-supply sequencing, making this a wide and versatile device.

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