LP2985-10DBVT

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Introduction

LP2985-10DBVT is a low-dropout (LDO) linear voltage regulator developed by Texas Instruments. It is a single-channel, low-noise, 10-V output precision linear voltage regulator, available in a convenient TO-2205 package. This precision linear voltage regulator features excellent line and load transient response, and has low ground current draw. It is designed to provide a high accuracy output with fast transient response. This makes it a suitable choice for applications requiring energy efficient power supplies. The LP2985-10DBVT has an optimal package size and low quiescent current, and is thus suitable for portable and small footprint applications.

Application Field and Working Principle

The LP2985-10DBVT is suitable for various applications, such as low-noise analog circuitry and precision current sources, as well as a variety of other design requirements. Its low supply current and excellent line and load transient response make it suitable for a wide range of applications requiring accurate and well-regulated outputs. As a PMIC (Power Management Integrated Circuit) voltage regulator, LP2985-10DBVT is used to provide low noise and low voltage dropout performance in power supply systems. It can also be used in situations demanding low power consumption and superior transient response, such as battery-powered applications.

The working principle of the LP2985-10DBVT is relatively simple. It consists of three main elements: an error amplifier, a power transistor, and a regulated output circuit. The error amplifier compares the output of the regulator to a reference voltage and generates a corresponding error voltage, which is then used to control the base current through a P-channel MOSFET transistor. This MOSFET is connected to a drive circuit, which uses the error voltage to turn on or off the transistor as needed. The regulated output voltage is then monitored and is adjusted dynamically to maintain the desired output voltage.

Features and Benefits

The LP2985-10DBVT offers a number of features that make it attractive for a variety of applications. It has an input voltage range from 4V to 24V, with an output voltage range from 1.2V to 10V. The on-chip output voltage adjustment range is +/- 3%, with a typical line regulation of 0.20%. It has a total power dissipation of 2.4 Watts and a quiescent current of only 50 microamps. It has both over-voltage and under-voltage protection, and is thermally protected against over-temperature conditions.

The LP2985-10DBVT also has a number of other benefits, including its low minimum dropout voltage, high peak current capability, fast transient response, and low noise output. Its small physical size also makes it suitable for a variety of applications, including tight spaces and portable devices. Additionally, the device has very low power consumption, which makes it an ideal choice for battery-powered products.

Conclusion

The LP2985-10DBVT is a single-channel, low voltage and low-noise linear voltage regulator suitable for a variety of applications. Its features such as excellent line and load transient response, low supply current, and low quiescent current make this device a reliable choice for providing energy efficient power supplies. Additionally, it offers an optimal package size, rapid transient response, and low noise output for excellent performance. The LP2985-10DBVT is thus an ideal choice for various applications requiring efficient regulation of input voltages.

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