MIC5393-PGYMT-T5

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MIC5393-PGYMT-T5 application field and working principle

The MIC5393-PGYMT-T5 is a high-performance, low-dropout, low-noise linear regulator. The small-package regulator optimized for low-noise-sensitive applications and low input/output voltage regions. It uses a P-channel MOSFET transistor and low-noise, low-dropout architecture that minimize power delivery noise, eliminating power sequencing concerns in CP system designs. The device is offered in five packages ranging from a MicroSMD package to a standard SOT23-5 for power management applications.

Features

• Ultra-low-dropout: 170mV @ 200mA
• Very low noise: 40μVrms at 1kHz
• Quiescent current: 220μA
• Operating input voltage range: 2.2V to 9.8V
• Output current capability: 200mA
• Inrush current protection: 0.3A
• Overcurrent protection: 1.2A
• Voltage accuracy: ±2.5%
• Shutdown current: 1μA
• Three fixed output voltage options: 1.2V, 1.5V, and 2.5V
• Thermal protection
• 5-lead SOT23-5 package

Applications

• VoIP and multimedia systems
• Networking
• Portable devices
• GPS and automotive
• Industrial equipment
• Medical systems

Working Principle

The MIC5393-PGYMT-T5 is a low-dropout low-noise linear regulator. It consists of an internal P-channel MOSFET transistor, a voltage reference and current limit circuitry, protection circuitry and thermal shutdown. The device uses a low-noise, low-dropout architecture that minimizes power delivery noise, eliminating noise concerns in CP system designs. The internal MOSFET transistor switches on/off when the output voltage reaches a certain current level that enables the device to maintain a very low dropout voltage. The output voltage is regulated to within 2.5% of its set value. The device also has integrated protection circuits such as automatic current limit, overcurrent protection, inrush current protection and thermal protection.

The device can operate with a wide input voltage range from 2.2V to 9.8V making it ideal for use in a wide range of system designs. It has a low quiescent current of 220μA and a shutdown current of 1μA, which makes it suitable for applications where power efficiency is a concern. The device is available in three fixed output voltage options of 1.2V, 1.5V and 2.5V and is provided in a 5-lead SOT23-5 package.

The MIC5393-PGYMT-T5 is ideal for a wide range of applications such as VoIP and multimedia systems, networking, portable devices, GPS and automotive, industrial equipment and medical systems. Due to its low noise, low dropout and low quiescent current characteristics it can be used as a core component in power management solutions offering a low-noise, high-efficiency, and reliable power source.

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