REF43GS

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	REF43
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Supply:	450µA
Voltage - Input:	4.5 V ~ 40 V
Noise - 10Hz to 10kHz:	10µVrms
Series:	--
Temperature Coefficient:	25ppm/°C
Tolerance:	±0.1%
Current - Output:	20mA
Voltage - Output (Min/Fixed):	2.5V
Output Type:	Fixed
Reference Type:	Series
Part Status:	Obsolete
Packaging:	Tray

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REF43GS is a PMIC (Power Management IC) device from Texas Instruments. It is a low dropout (LDO) voltage reference that provides a regulated voltage output in a wide variety of applications. It features a low amount of noise and a wide input and output voltage range. The REF43GS is used to provide a stable voltage reference for applications such as dc-dc and ac-dc voltage conversion, power sequencing, and power management.The REF43GS is suitable for a variety of applications, including industrial and industrial automation, telecommunications, home and telecom appliances, automotive, and automotive electronics. It is designed to provide a regulated voltage output, making it ideal for many different functions, such as controlling voltage levels, driving LEDs, and providing a constant current source.The REF43GS consists of a simple circuit composed of an NPN bipolar junction transistor (BJT) and a current source. The BJT is used to regulate the output voltage of the device, while the current source ensures that the output voltage remains stable even when the input voltage fluctuates. The BJT is temperature compensated, allowing the device to maintain a regulated voltage output over a wide range of temperatures. The REF43GS can operate in two modes: \'high\', which sets the output voltage level to the highest possible level, and \'low\', which sets the output voltage level to the lowest possible level. The device is capable of implementing both modes simultaneously; however, the maximum output voltage is limited to 2.0V in both high and low mode. The REF43GS works by using the distinction between the PNP and NPN transistors. When the input voltage is lower than the reference voltage, an output is generated by the NPN transistor, while when the input voltage is higher than the reference voltage, an output is generated by the PNP transistor. This output is regulated via the voltage reference provided by the current source. The circuit is designed to ensure that the output voltage is as close as possible to the reference voltage regardless of the input voltage within the specified range. The REF43GS is designed to be small and compact, making it easy to integrate into compact devices and systems. It is easily installed and operated, and can be used in a variety of applications. Additionally, the REF43GS is highly reliable, with a temperature range of -55°C to +125°C and noise levels of less than 2.0 µVrms. In summary, REF43GS is a PMIC (Power Management IC) device from Texas Instruments. It provides a regulated voltage output in a wide variety of applications, including industrial and industrial automation, telecommunications, home and telecom appliances, automotive, and automotive electronics. It features an easy installation and a low noise level, and is capable of maintaining a regulated voltage output over a wide range of temperatures. This makes it an ideal choice for many applications, such as controlling voltage levels, driving LEDs, and providing a constant current source.

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