ADR4533BRZ-R7

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PMIC (Power Management Integrated Circuit) is a specialized type of chip that allows better power control of a system. Voltage references are important components in PMICs because they regulate the voltage across the circuit, helping to maintain mechanical stability. The ADR4533BRZ-R7 is a precision, ultra-low dropout, wide operating range, and fast transient response voltage reference. Its wide variety of features and characteristics make the ADR4533BRZ-R7 a great choice for PMIC applications.

The ADR4533BRZ-R7 offers unprecedented accuracy and stability, with an output voltage tolerance of ±3 mV over a temperature range of -40 to +125 ˚C. The switching frequency of the device can reach up to 200 kHz, while the input voltage range can reach up to 6 V, enabling precise control over a wide operating area. Furthermore, the device has a low dropout voltage of 45 mV, ensuring no significant change in output voltage even when the input voltage drops. The device also has a low quiescent current of 20 µA, minimizing the total power consumption of the system.

The ADR4533BRZ-R7 has several application fields, ranging from automotive, medical and industrial to consumer application designs. In automotive applications, the device is used in power management systems to maintain the stability of key systems. It can also be used in medical monitoring systems and industrial systems where precise voltage regulation is essential to maintain critical conditions. In consumer application designs, such as battery chargers, the ultra-low dropout voltage of the ADR4533BRZ-R7 ensures consistent regulation even during times when the input voltage drops.

The ADR4533BRZ-R7 operates according to the circuit on-chip current source working principle. The device features an integrated on-chip MOS transistor whose source terminal is connected to a reference voltage source. The gate voltage of the MOS transistor is then set to a specific value, which determines the current through the device. This current is usually held constant by the on-chip circuitry and is used to charge the well of the external reference voltage divider. This divider is connected to the device’s output voltage, and the output voltage is then determined by the values of the resistors in the divider.

In summary, the ADR4533BRZ-R7 is an ultra-low dropout voltage reference that is specifically designed for use in PMICs. The device offers exceptional accuracy and stability, with an output voltage tolerance of ±3 mV over a wide temperature range. This device is useful in a variety of application fields, ranging from automotive to industrial, and is operated by a simple current source working principle. With the low quiescent current, high switching frequency, and wide operating range, the ADR4

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