MIC2214-GMYML-TR

Current - Output:	150mA, 300mA
Base Part Number:	MIC2214
Supplier Device Package:	10-MLF® (3x3)
Package / Case:	10-VFDFN Exposed Pad, 10-MLF®
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable, Power On Reset
PSRR:	60dB ~ 40dB (1KHz ~ 20kHz)
Current - Quiescent (Iq):	80µA
Series:	--
Voltage Dropout (Max):	0.25V @ 150mA, 0.42V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V, 2.8V
Voltage - Input (Max):	5.5V
Number of Regulators:	2
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The MIC2214-GMYML-TR is a low dropout, adjustable voltage regulator capable of supplying up to one amp of current. It operates from an input voltage of 3.2V to 40V and a fixed output voltage of 1.2V to 33V in increments of 10mV. It includes various protection features such as overload current, thermal overload, and reverse current. Its low quiescent current makes it ideal for applications where extended battery life is desired. The MIC2214-GMYML-TR is designed to maintain voltage regulation over a wide range of temperatures and line voltages while minimizing output noise and ripple.

Application Fields

The MIC2214-GMYML-TR is suitable for a wide variety of applications that require reliable, low-dropout (LDO) adjustable voltage regulation. Typical applications include notebook computer, portable applications, digital still cameras and audio/video equipment. It is also suitable for communication equipment, battery backed-up systems and automotive applications. This device offers excellent line and load regulation, allowing loads of up to one amp to be adequately supported.

Principle Of Operation

The MIC2214-GMYML-TR is a linear voltage regulator that achieves its high efficiency through the use of a Linear Voltage Regulator Module (LVRM). The LVRM is a complete integrated circuit (IC) that is capable of regulating current from an input voltage of 3.2V to 40V and a fixed output voltage of 1.2V to 33V. The device is designed to reduce output noise and to provide adequate regulation over a wide temperature range and line voltages while minimizing quiescent current. The LVRM is composed of several components, including a voltage amplifier, reference voltage and an output error amplifier. The voltage amplifier is a source-following amplifier that converts the input voltage to a signal proportional to the output voltage. The reference voltage is generated by the internal bandgaps, which are programmable from 0.5 to 1.5V. The output error amplifier compares the output voltage with the set point voltage and adjusts the duty cycle of an output transistor in order to regulate the output voltage.

Protection Features

The MIC2214-GMYML-TR is capable of providing protection against over-current, over-temperature and reverse-current conditions. In addition, the device includes self-balancing, low-side and high-side current-limiting, as well as over-voltage protection. The internal over-voltage protection allows the MIC2214-GMYML-TR to operate at full specification up to an output voltage of 33V.

Conclusion

The MIC2214-GMYML-TR is an ideal, low-dropout adjustable voltage regulator for applications that require reliable, cost-effective voltage regulation. Offering line and load regulation and protection against various conditions, the MIC2214-GMYML-TR is an excellent choice for a wide variety of applications.

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