MIC23159YML-TR

Voltage - Output (Min/Fixed):	1V
Base Part Number:	MIC23159
Supplier Device Package:	20-MLF® (3x4)
Package / Case:	20-VFQFN Exposed Pad, 20-MLF®
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	3MHz
Current - Output:	2A
Voltage - Output (Max):	3.3V
Series:	HyperLight Load®
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.7V
Number of Outputs:	2
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The MIC23159YML-TR is a step-down switching regulator from Microchip Technology, and is part of their Power Management ICs family. The device is offered in a small, thermally competent Surface-Mount Package and provides high efficiency, low ripple and low noise. It integrates intelligent thermal management features which allow the device to operate at high switching frequencies (> 1 MHz). The device also features Cycle-by-Cycle current and temperature limit and can be configured with external compensation or have the compensation adjusted internally.

Application Fields

The MIC23159YML-TR is designed to be used in various applications, including general purpose voltage regulation, where it can be used as a low noise step-down linear regulator or as a variable frequency circuit. It is also suitable for powering microcontrollers, FPGA, ASICs, voltage conversion in digital or power supply systems and power conditioning in automotive applications. The device is especially suited for supplying power in low voltage, high current applications and where small size, high efficiency and low noise are required.

Working Principle

The MIC23159YML-TR is a step down switching regulator, meaning that it switches the output voltage from a high to a low setting. This is done by using a voltage reference, a comparator and a switching transistor to control the output voltage. The voltage reference sets the output voltage, and the comparator compares the reference voltage to the output voltage. If the output voltage is lower than what is expected, the switching transistor is turned on, allowing the current to flow through the switch, thus increasing the output voltage. Conversely, if the output voltage is too high, the switching transistor will be turned off, terminating the current flow and thus decreasing the output voltage.

Conclusion

The MIC23159YML-TR is a step-down switching regulator from Microchip Technology. It is used in several applications, including general purpose voltage regulation and powering of microcontrollers, FPGA, ASICs, etc. The device offers high efficiency, low ripple, low noise and a thermally competent package. The working principle of the device is based on a voltage reference, comparator and a switching transistor, which allow the device to switch the output voltage from a high to a low setting.

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