SPX431LAN-L

Temperature Coefficient:	30ppm/°C
Supplier Device Package:	TO-92-3
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 105°C (TA)
Current - Cathode:	1mA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	--
Noise - 0.1Hz to 10Hz:	--
Series:	--
Tolerance:	±0.5%
Current - Output:	100mA
Voltage - Output (Max):	20V
Voltage - Output (Min/Fixed):	2.503V
Output Type:	Adjustable
Reference Type:	Shunt
Part Status:	Discontinued at Digi-Key
Packaging:	Bulk

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Introduction

The SPX431LAN-L is a voltage reference PMIC specifically tailored to provide precise ±5 V voltage references for consumer, industrial, and aeronautical applications. It is designed to provide low noise and very low temperature drift performance. This PMIC offers a low output impedance that helps reduce EMI emission and system power dissipation. Furthermore, the SPX431LAN-L has a wider operating temperature range to withstand higher temperature environments.

Application Field

The SPX431LAN-L is used in a wide range of consumer, industrial and aeronautical applications. It is highly suited for multiple applications such as automotive, power supplies, medical electronics, portable computing devices, and instrumentation systems. It can also be used for precision reference designs, digital-to-analog converters (DACs), analog-to-digital converters (ADCs) and clamp circuits, making it a reliable option for advanced reference designs. The SPX431LAN-L is designed to provide low noise and very low temperature drift performance, making it suitable for applications that require an accurate and stable supply of power. In addition, the low output impedance of the SPX431LAN-L helps reduce EMI emission and system power dissipation.

Working Principle

The SPX431LAN-L works by providing precise ±5V voltage references for consumer, industrial, and aeronautical applications. The integrated low drop-out voltage regulator (LDO) provides a constant output voltage, independent of the input condition or output loading. The target output voltage is set using an external resistor divider network, while the output current can be configured by an integrated current source. The SPX431LAN-L features a wide operating temperature range, allowing it to withstand harsh environmental conditions. The device offers a wide operating temperature range of −40 °C to +125 °C and offers temperature drift less than 1 μV/°C. The low drop-out voltage of the voltage reference enables the device to support low noise and efficient power conversion with minimal power dissipation.

Conclusion

The SPX431LAN-L is a PMIC voltage reference specifically tailored to provide precise ±5V voltage references for consumer, industrial, and aeronautical applications. It has a wide operating temperature range, a low output impedance, and low-noise operation, making it suitable for multiple applications such as automotive, power supplies, medical electronics, portable computing devices, and instrumentation systems. The SPX431LAN-L provides excellent temperature drift performance and works by providing a constant output voltage, independent of the input condition or output loading.

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