ADR4550BRZ

Temperature Coefficient:	2ppm/°C
Base Part Number:	ADR4550
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TA)
Current - Supply:	950µA
Voltage - Input:	5.1 V ~ 15 V
Noise - 10Hz to 10kHz:	--
Noise - 0.1Hz to 10Hz:	2.8µVp-p
Series:	--
Tolerance:	±0.02%
Current - Output:	10mA
Voltage - Output (Min/Fixed):	5V
Output Type:	Fixed
Reference Type:	Series
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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Voltage Reference PMIC – ADR4550BRZ Application Field and Working PrinciplePMIC, or power management integrated circuits, are commonly used to help regulate and maintain the power and performance of various devices and components. Voltage reference PMICs are specifically dedicated to ensure that the voltage output of a device or circuit performs accurately and consistently. The ADR4550BRZ is a voltage reference PMIC that is utilized in a variety of applications. This document details the application fields and working principle of the ADR4550BRZ voltage reference PMIC. Application Field of ADR4550BRZ Voltage Reference PMICThe ADR4550BRZ was designed for use in a range of power-controlling applications. Firstly, the PMIC’s low-dropout (LDO) voltage regulator provides ultra-low noise voltage references to support precision analog signals. This is beneficial for power technologies such as power over Ethernet (PoE) and several types of communications systems. Furthermore, the ADR4550BRZ can be used to support high power loads for voltage regulation with moderate ripple and noise levels, thus making it suitable for use in a wide range of operating environments. In addition, the PMIC can also be used in automotive applications as it has excellent temperature stability and a wide voltage range of 2V to 6V. Other applications include communications equipment and monitor systems.Working Principle of ADR4550BRZ Voltage Reference PMICAt its core, the working principle of the ADR4550BRZ is based around the concept of voltage regulation. This PMIC is equipped with an internally integrated 150mV reference voltage VREF that is used to produce an inherently stable and reliable output voltage.When the voltage supply voltage VIN is higher than the reference voltage VREF, the PMIC’s pass transistor is turned on, resulting in the output voltage being regulated at VREF + ½VBE, where VBE is the base-emitter voltage of the pass transistor. The reference voltage VREF can be set by the resistor divider and an external capacitor to achieve the desired voltage output. The PMIC also has an adjustable current limiter that can be programmed by one external resistor. This current limiter ensures that the PMIC is able to provide improved load protection and better thermal performance. Additionally, this PMIC comes equipped with a variety of features such as over temperature protection and overtemperature shutdown protection.ConclusionThe ADR4550BRZ voltage reference PMIC is a versatile and powerful voltage regulating device that is highly efficient, robust and easy to use. It is suitable for use in a wide variety of applications, ranging from automotive to communications and monitor systems. The PMIC is equipped with an internal 150mV reference voltage and an adjustable current limiter to provide stable, reliable and reliable voltage output. Moreover, the PMIC is designed with a wide range of protection features to protect the circuit from over temperature and current issues.

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