LM217LZ-AP

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The LM217LZ-AP is a 3-Pin Adjustable Positive Voltage Regulator, specifically designed for use in high density surface mount applications. It\'s an upgraded version of linear voltage regulator LM317L and it\'s been improved in some key aspects such as higher current handling capability, improved transient performance and better output voltage accuracy. The LM217LZ-AP has a wide input voltage range of 2.5V to 40V with excellent line regulation and output current capability. It can handle up to 2.0A of output current and the dropout voltage at full load is only 1.2V. And the output voltage is adjustable from 1.25V to 37V with ±1% accuracy.

The LM217LZ-AP is the best choice for applications requiring low cost and high efficiency such as power supplies and battery charging. It can also be used in automotive and industrial applications where regulation is required for various voltages, such as for microprocessors, ASICs, and DDR memory. This regulator has a thermal shutdown protection, so it can protect the device from overheating. It also has a shutdown input which can be used to control overvoltage protection or other safety features. The LM217LZ-AP requires no external components, which makes it ideal for small and space limited applications. That makes it popular in automotive projects where space is at a premium.

The LM217LZ-AP is based on the classic three-terminal adjustable regulator, like the series LM317. With a few external components, the regulator can be wired up to achieve a linear voltage regulation. This 3-pin regulator has two pins for the output voltage (Vo and GND) and an adjacent pin for the voltage reference (Vref). A band-gap voltage reference (Vref) is usually integrated 360 into the device to provide a stable output voltage regardless of varying load currents and external supply voltage variations. The output voltage is adjustable via the voltage reference pin (Vref) and it\'s a function of the value of the external resistor connected to the band gap reference pin (Vref).

Another feature of the LM217LZ-AP is the error amplifier that continually compares the regulator\'s output voltage (Vo) with the reference voltage (Vref). The difference between these two voltages is known as the error voltage and this is amplified and presented at the output of the error amplifier. This amplified error voltage value is then used by the feedback loop to adjust the output voltage (Vo) of the LM217LZ-AP in order to minimize the difference between the regulator’s output and the reference voltage (Vref). This helps to maintain the output voltage (Vo) accuracy within the specified tolerance of ±1%.

The LM217LZ-AP is a versatile linear voltage regulator that can be used for a variety of applications. It is a great solution for battery charging, computer and peripheral power supplies, automotive and industrial applications, as well as other microprocessor/ASIC/DDR memory applications. It offers excellent thermal performance, lower power consumption and greater power management efficiency, making it a great option for those who require low cost and high efficiency in their designs.

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