MIC38C45AYM

Frequency - Switching:	500kHz
Base Part Number:	MIC38C45
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	50%
Series:	--
Voltage - Supply (Vcc/Vdd):	7.6 V ~ 20 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck, Boost, Flyback, Forward Converter
Output Configuration:	Positive, Isolation Capable
Function:	Step-Up, Step-Down, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

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MIC38C45AYM Application Field and Working Principle

The MIC38C45AYM is an isolated DC-DC switchmode controller with a wide range of applications. It is a versatile part that is designed to provide temperature and current protection as well as a high-frequency, low-ripple output voltage.The MIC38C45AYM has a simple, monolithic IC design that is well-suited for applications involving working in harsh environments, such as industrial control systems, lighting systems, and instrumentation. It can also operate in automotive, medical, and other specialized electronics applications.The MIC38C45AYM is designed to be used in conjunction with an inductor and FET to create an isolated DC-DC switching power supply topology. The device provides an adjustable output voltage range of 2.5V to 28V and a user-defined frequency of operation.The core of the MIC38C45AYM is a unique, high-performance integrated circuit (IC) that contains the logic and control circuits necessary to produce an efficient, isolated, regulated output voltage. This IC contains the switching elements, voltage references, current sense, control, and protection circuitry to ensure reliable operation.The MIC38C45AYM includes two power stages. The first stage monitors the output voltage and controls the FET switching cycle. The second stage is used to regulate and monitor the output voltage and protect the system from over-voltage and over-current conditions.The MIC38C45AYM employs a peak current mode control circuit to regulate and monitor the output voltage. This circuit provides a pulse-by-pulse current limiting, over-voltage protection, and short circuit protection.The MIC38C45AYM also offers user programmable soft-start, which is beneficial for applications where the start-up time is critical. Operational stability can also be improved by programming the device’s internal compensation networks.The MIC38C45AYM is an easy to use device that provides good thermal performance and excellent electrical characteristics. It is a robust, low-cost DC-DC switching regulator that can be used in a wide variety of applications. The device is well suited for providing stable, efficient, and reliable power supplies in both AC and DC applications.

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