LM2586SX-3.3

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The LM2586SX-3.3 is a high performance monolithic integrated circuit design specifically for regulating and switching power. It is categorized as a PMIC (Power Management Integrated Circuit), under Voltage Regulators and DC DC Switching Regulators. It was first released by Intersil in 2004 as a member of the LM2586 series of integrated circuits.

This particular model of the LM2586 series is specifically designed to be used in applications requiring efficient, low-voltage regulation or power conversion. It offers an output voltage of 3.3V, making it suitable to be used with many low-voltage electronics. It also consumes only 5mW of power, making it suitable for applications that require careful regulation of energy consumption.

The LM2586SX-3.3 uses a two-stage, transmission gate-controlled, current-mode switching step-down converter architecture. The topology used for this circuit is a combination of a voltage-mode, pulse-width modulation (PWM) controller and an external MOSFET-based power switch, with a single control signal from the PWM controller.

The integrated circuit comprises of all the essential components necessary for adjustable step-down switching power conversion. It has an input voltage range of 3V to 38V and an operating frequency of up to 150kHz. The switching regulator also includes a wide range of features such as power scaling, integrated over temperature protection, short-circuit protection, regulating loop compensation etc.

It also has a very low standby current of 0.5µA and an adjustable amplifier with a temperature stability of 0.02%. This low standby current allows it to be used in low-power and battery-powered applications. The adjustable amplifier with a temperature stability of 0.02% provides for a very accurate voltage regulation and switching performance.

The LM2586SX-3.3 also offers a high efficiency of up to 94% and an output current limit of up to 1A. It also has an enable pin that can be used to enable/disable the internal switch. The enable pin has a pull-down resistor and an open-drain output.

The LM2586SX-3.3 is thus ideal for use in consumer electronics applications, automotive applications, communication circuits, power converters, and applications requiring adjustable power conversion. It is also well suited to be used in wide temperature range applications, particularly those requiring a tight voltage regulation.

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