LT1461DHS8-3#PBF

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Voltage references are devices that are designed for providing a known and relatively stable voltage across a load. The LT1461DHS8-3#PBF is a low dropout linear regulator with an internal reference which incorporates high accuracy performance, fast transient response and low noise levels. This voltage regulator is designed for use in systems such as the local power systems for VCOs, analog references, and battery regulation.

The low dropout linear regulator with internal reference that is provided by the LT1461DHS8-3#PBF uses an innovative regulator circuit which has been specially designed to reduce noise, provide a high output voltage accuracy and to provide fast transient performance. This device can be operated in a wide temperature range and offers superior line and load regulation characteristics. The LT1461DHS8-3#PBF is ideal for applications such as VCO power supply, local power systems, and battery regulation applications.

The LT1461DHS8-3#PBF\'s working principle is simple. When the input voltage is greater than the output voltage plus the regulator dropout voltage (Vin > Vout +Vd), the regulator output voltage is held constant at the set value. When the input voltage is less than the output voltage plus the regulator dropout voltage, the regulator output voltage will drop to a value slightly greater than the input voltage. The total dropout voltage for the LT1461DHS8-3#PBF is 460mV typically, although other levels may be available.

The device has an internal voltage reference and amplifier which is used to maintain output accuracy and provides a low output voltage noise of 20µV @ 100Hz. The current due to the error amplifier is supplied to the pass element, controlling the pass element current to keep the output voltage at the desired value. This is a very precise approach where the regulator is accurate to a few mV. The device also includes protection circuitry to reduce the likelihood of damage due to overloads, under/over voltage conditions and thermal events.

The LT1461DHS8-3#PBF has a wide range of input and output voltages available and is available in leaded and Pb-free packages. This device is also pin compatible to Maxim\'s DS9601 and DS9801 series. It is suitable for applications such as local power systems, VCOs and to regulate battery power. The LT1461DHS8-3#PBF is designed for use in embedded systems, automotive, test and measurement, industrial and telecom markets.

In summary, the LT1461DHS8-3#PBF from Linear Technology is an excellent voltage regulator for embedded systems, automotive, test, measurement, industrial and telecom markets that provides fast transient response, low noise levels and wide temperature range with superior line and load regulation characteristics. The working principle of the device involves an internal voltage reference and amplifier that works to maintain output accuracy and provides a low output voltage noise. It has a wide range of input and output voltages available and is available in leaded and Pb-free packages.

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