VRE3050JS Integrated Circuits (ICs)

Voltage references, or voltage references, are critical components of analog and digital circuits to provide stable power for logic operation. The VRE3050JS is a precision series shunt reference from Vishay that accurately and reliably sets the reference voltage of an analog or digital circuit. The VRE3050JS reference voltage series is designed for the specific power requirements of the PMIC (Power Management IC): low power consumption, low noise and low temperature coefficient.

The operating voltage range of the VRE3050JS is 2.5V to 5.5V, with a nominal voltage of 3.3V. It offers a temperature coefficient of 50ppm/°C and a maximum output voltage temperature coefficient of 15 ppm/°C. Its maximum load current is 500uA and its relative load stability is 1%. The device is stable over the full operating temperature range of -40 °C to 125 °C. The chip includes an internally trimmed bandgap circuit, which provides low input bias current, good reference voltage accuracy, stable output voltage and low output impedance over temperature, current and supply variations.

The output voltage of the VRE3050JS is set via two external resistors connected to the ADJ and GND terminals. The ADJ terminal is the output voltage control terminal, and the output voltage can be adjusted by changing the value of the resistor connected to this terminal. A voltage divider is formed between the two resistors, so the output voltage can be calculated using the formula VOUT = ADJ × R2/(R1+R2).

The internal bandgap reference circuit of the VRE3050JS maintains a constant output voltage over a wide range of load currents and temperatures. The reference voltage is also unaffected by variations in input voltage, ensuring the accuracy of the output voltage at all times. The reference voltage is also immune to device aging, thus providing stable performance over time.

The VRE3050JS is ideal for applications such as automotive and telecommunication power management, instrumentation, medical instrumentation, and other applications requiring regulated low-voltage power supplies. Its low power consumption, low noise and low temperature coefficient make it suitable for precision applications such as data acquisition systems, A/D and D/A converters, and motor control.

In summary, the VRE3050JS is a precision series shunt reference from Vishay that accurately and reliably sets the reference voltages of analog and digital circuits. It is designed for the specific requirements of PMICs: low power consumption, low noise and low temperature coefficient. Its wide operating voltage range and temperature coefficient make it suitable for precision applications, and its internal bandgap reference circuit maintains a constant output voltage over a wide range of load currents and temperatures.