MIC38C44YMM

Duty Cycle:	50%
Base Part Number:	MIC38C44
Mounting Type:	Surface Mount
Supplier Device Package:	8-MSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Operating Temperature:	-40°C ~ 150°C (TJ)
Control Features:	Frequency Control
Fault Protection:	--
Frequency - Switching:	500kHz
Series:	--
Voltage - Supply (Vcc/Vdd):	9 V ~ 20 V
Voltage - Start Up:	14.5V
Topology:	Boost, Buck, Flyback, Forward
Voltage - Breakdown:	--
Internal Switch(s):	Yes
Output Isolation:	Isolated
Part Status:	Active
Packaging:	Tube

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MIC38C44YMM - AC DC Converters, Offline Switchers

The MIC38C44YMM is an Integrated Circuit (IC) from ON Semiconductor that provides comprehensive AC/DC power management. This highly efficient IC use a synchronous buck topology to regulate and provide power in the most efficient manner possible.

General Overview

The MIC38C44YMM is the ideal power management solution for multiple applications in computing, communication, home automation and industrial automation. It operates over an input voltage range of zero to 85V AC, and can provide an output voltage range of 0.6 to 5.5V DC. Moreover, it offers high power conversion efficiency at both light-load and heavy-load conditions, along with good electrical noise immunity. Due to its low standby power consumption, the MIC38C44YMM is well suited for Energy Efficient System designs. It is equipped with advanced protection features like Over Voltage Protection (OVP), Over Current Protection (OCP), and Short-Circuit Protection (SCP). In addition, the device provides programmable soft-start and low-power Latch Mode of operations.

Applications

The MIC38C44YMM is widely used in applications such as servers, data centers, computing desks and laptops, LEDs, LCDs, relay drivers, remote sensing, data acquisition systems, energy efficient household appliances and industrial control systems.

Working Principle

The MIC38C44YMM consists of a high-frequency power switching regulator, arranged in a synchronous buck topology. Symmetrical pulse width modulation (PWM) is used to convert AC input power to the desired DC output voltage.The buck regulator contains an internal power switch, controlled by a Pulse Width Modulator, to regulate output voltage and minimize power losses. A power supply operating over a wide AC input range is implemented by a patented Active Voltage Positioning (AVP) technology. It positions the switching regulator\'s switch node voltage to a level close to Vdc, which is independent of input voltage. The AVP technology maintains output voltage during varying line conditions, for example, during low-line or high-line AC input.

Conclusion

The MIC38C44YMM is a high-efficiency, multifunctional integrated circuit designed for AC/DC power management applications. It is well suited for efficient system designs, providing output voltages ranging from 0.6 V to 5.5V DC. Due to its advanced protection features and wide range of applications, the MIC38C44YMM is a reliable, safe and cost-effective solution for a variety of AC and DC power management requirements.

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