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MIC5310-PNYML-TR Application Field and Working Principle

The MIC5310-PNYML-TR is a Programmable Error Low Dropout (LDO) linear voltage regulator from Microchip Technology. This voltage regulator features high accuracy and low noise performance for a wide range of applications. It is designed for high-performance and low-voltage applications such as mobile phones, cameras and other small form-factor devices. It offers a wide input voltage range of 2.3 V to 5.5 V, with low quiescent current and low temperature coefficient.

Overview

The MIC5310-PNYML-TR is a flexible, Programmable Error Low Dropout (LDO) linear voltage regulating device which can accommodate a wide range of input and output voltages. It is a compact, low-noise, high-accuracy solution for applications that require precision voltage regulation for 3.3 V and lower outputs.

The device is designed to provide a low quiescent current, high accuracy, and excellent transient response. It features a Programmable Error Amplifier (PEA) that can be programmed to achieve a target accuracy of ±0.5% (typical) over line and temperature changes. The PEA also includes a wide bandwidth adjustment that increases the voltage matching accuracy by reducing the communication time.

The MIC5310-PNYML-TR also features an advanced low dropout voltage architecture for low output voltage noise and improved load transient performance. The device operates at a constant frequency, which eliminates the associated component stress and allows for improved thermal performance. This architecture also eliminates the need for external components, ensuring a clean implementation and saving precious board space.

Features of MIC5310-PNYML-TR

• Wide Input Voltage Range: 2.3 V – 5.5 V
• High Accuracy: ± 0.5%, typical
• Low Quiescent Current: 20 µA, typical
• Low Output Voltage Noise: 2.2 µVrms, typical
• High PSRR: 60 dB, typical
• Programmable Error Amplifier (PEA): ± 1% accuracy over line and temperature
• Wide Bandwidth Adjustment: Increase voltage matching accuracy
• Low Dropout Voltage Architecture: Low voltage noise and improved load transient performance
• Constant Frequency Switching: Reduces component stress and improves thermal performance
• Small Package: 8-Pin SOIC (MSOP)

Application

The MIC5310-PNYML-TR is optimized for power-constrained applications, offering a low quiescent current and excellent accuracy at low output voltages. It is suitable for a wide range of applications, from small portable devices such as mobile phones, cameras, and MP3 players to larger devices such as TVs and gaming consoles.

The device can be used to regulate the main power bus in a system, where accuracy and dropout are key. It can also be used as a precision shunt regulator, with the ability to provide a regulated output voltage in the presence of a varying input voltage.

Working Principle

The MIC5310-PNYML-TR is a Programmable Error Low Dropout (LDO) linear voltage regulating device. It is designed to provide precision regulation of low voltage rails with an output accuracy of ±0.5% (typical).

The MIC5310-PNYML-TR features an advanced low dropout voltage architecture which is optimized for low output voltage noise, improved load transient performance and low quiescent current. The architecture also eliminates the need for external components, ensuring a clean and cost efficient implementation.

The device also features a Programmable Error Amplifier (PEA) which can be programmed to achieve a target accuracy of ±0.5% (typical) over line and temperature changes. A wide bandwidth adjustment allows for improved voltage matching accuracy by reducing the communication time.

The MIC5310-PNYML-TR operates at a constant frequency, which eliminates the associated component stress and allows for improved thermal performance. The device also features a wide input voltage range of 2.3 V to 5.5 V, and it is packaged in an 8-pin SOIC (MSOP) package.

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