LNBEH21PD-TR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Applications:	Converter, Analog and Digital Satellite STB Receivers/SatTV
Voltage - Input:	8 V ~ 15 V
Number of Outputs:	1
Voltage - Output:	13.3V, 19.5V
Operating Temperature:	0°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	20-SOIC (0.433", 11.00mm Width) Exposed Pad
Supplier Device Package:	PowerSO-20
Base Part Number:	LNBEH21

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PMIC - Voltage Regulators - Special PurposeThe LNBEH21PD-TR is a special type of voltage regulator used in specialized power delivery applications. It is a proprietary technology developed by Linear Technology Corporation and is used in a wide range of products from consumer electronics to industrial and automotive applications. This voltage regulator is designed for low voltage, high current applications, with its output range being either 0.4V or 5.5V maximum.The working principle of this voltage regulator is based on the linear feedback principle. The feedback network is composed of two resistors, one upstream of the regulating element and one downstream of it. The upstream resistor senses the voltage at the regulated output and the downstream resistor senses the voltage at the input of the regulator. When the outputs differ, the feedback sets the transistor in the regulator to switch on and off in order to maintain a constant regulated output. This type of regulation maintains a constant output voltage independent of device load and input voltages, thus providing a stable source of power.The construction of a LNBEH21PD-TR voltage regulator is composed of a high efficiency transistor, a linear regulator element, a feedback network and a control network. The transistors are generally MOSFETs, though other types may also be used. The linear regulator element is typically a PNP transistor, which provides balanced regulation throughout the output range. The feedback and control networks provide the regulation of the output voltage by setting the base voltage of the PNP transistor and by changing the resistance of the feedback resistors.The voltage output range of a LNBEH21PD-TR is flexible enough to cater to any circuit that requires a DC supply voltage in the 0.4V to 5.5V range. This makes the LNBEH21PD-TR ideal for applications in high efficiency, portable consumer electronics, as well as automotive, industrial, and medical equipment. Many types of applications make use of the high efficiency and wide input range of a LNBEH21PD-TR voltage regulator.In consumer electronics, the most common applications of a LNBEH21PD-TR voltage regulator are in cell phones, laptops, PDAs, and digital cameras. In automotive applications, the voltage regulator is used to provide power to vehicle comforts such as air-conditioning and audio systems. Industrial components such as industrial sensors and pumps are also powered by this type of voltage regulator. Additionally, in medical devices, the LNBEH21PD-TR voltage regulator is commonly used to improve the reliability and performance of MRI and X-Ray machines and other medical equipment.To sum up, the LNBEH21PD-TR voltage regulator is a proprietary power delivery technology designed for a wide range of applications. It uses a linear feedback principle to maintain a constant output voltage irrespective of device load and input voltages. Its construction comprises of a high efficiency transistor, a linear regulator element, and two feedback networks. The wide output range and high efficiency of the regulator make it ideal for use in a variety of consumer electronic, automotive, industrial, and medical applications.

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