MIC2150YML-TR

Frequency - Switching:	500kHz
Base Part Number:	MIC2150
Supplier Device Package:	24-MLF® (4x4)
Package / Case:	24-VFQFN Exposed Pad, 24-MLF®
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Current Limit, Enable, Power Good, Soft Start
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	80%
Series:	--
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 14.5 V
Output Phases:	2
Number of Outputs:	2
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MIC2150YML-TR Application Field and Working Principle

The MIC2150YML-TR is a 2A, high-efficiency, synchronous step-down switching regulator integrated circuit from Microchip Technology. The integrated circuit (IC) is capable of providing a regulated 2A output with excellent efficiency for a wide range of input voltages. It has a wide input voltage range from 4V to 32V. The MIC2150YML-TR combines power MOSFET’s, current sensing, input monitoring, thermal regulation, fault protection and bias voltage regulation in one integrated circuit. This makes it an ideal choice for a variety of applications such as battery powered devices, automotive electronics, telecom equipment and other applications requiring high current at low voltages.

The MIC2150YML-TR is a DC-DC switching regulator of the pulse-width modulation (PWM) type. It is designed to be used as the main power source regulator in various kinds of DC-DC converters. The device is able to provide a constant output voltage from an input voltage that can range from 4V to 32V. The wide input voltage range provides a high level of flexibility, allowing the device to be used in a variety of DC-DC switching regulator applications. In order to maintain a constant output voltage, the device uses an adaptive non-synchronous rectangular waveform to control the switching of the power MOSFET’s. This technique is known as pulse-width modulation or PWM control. The device includes both current and thermal protection circuits to prevent damage from shorts and overcurrents. The device also includes an enable pin that allows the user to enable or disable the device at any time. The device also includes an adjustable soft-start feature that allows gradual start-up of the output voltage, reducing inrush current and decreasing power supply components stress during start-up.The MIC2150YML-TR is designed to provide excellent switching regulator performance with an integrated MOSFET current sensing feature which allows dynamic adjustment of the power MOSFET switch duty cycle. This integrated MOSFET current sensing feature also allows the device to provide excellent load regulation and line regulation performance. The load regulation is typically +-3%, while the line regulation is typically +-2%. This provides excellent performance in a wide range of DC-DC switching regulator applications.

The MIC2150YML-TR also provides a voltage ramp limit functionality which can help reduce the output voltage ringing in switching regulator applications. The device also includes an output voltage trim feature that allows the user to fine-tune the output voltage to the exact value required by the application. Finally, the device includes an external sync pin that allows the device to be synchronized with other PWM devices. In summary, the MIC2150YML-TR is a high efficiency, 2A, pulse-width modulation synchronous DC-DC switching regulator designed for a wide range of input voltages. The device includes an integrated MOSFET current sensing feature as well as a wide range of protection and control features that make it an ideal choice for various kinds of DC-DC switching regulator applications.

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