MIC94345-GYMT-TR

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The MIC94345-GYMT-TR is an ultra low quiescent current and high PSRR low dropout linear regulator with low dropout (LDO) performance and high power supply rejection ratio (PSRR). It is a fixed voltage device with a voltage output range of 0.9V to 18V. The MIC94345-GYMT-TR is designed for use in a variety of applications, including portable medical device, digital cameras, computer, cell phones, and other consumer electronics products.

Application Field

The MIC94345-GYMT-TR, due to its high power supply rejection ratio, low quiescent current and wide operating range, is suitable for a variety of applications, including:

• Portable medical device
• Digital cameras
• Computer
• Cell phones
• Other consumer electronics products

The MIC94345-GYMT-TR is ideal for use in devices where power management is needed. Its low dropout characteristic allows it to regulate a steady output voltage even when the input voltage drops below the expected regulation value. It is capable of providing up to 5A of continuous output current.

Working Principle

The MIC94345-GYMT-TR works by converting a variable input voltage (Vin) to a steady output voltage (Vout). The device uses two transistors to regulate the output voltage. For Vout to remain constant, the current flowing through the transistors must remain the same. This is achieved by constantly comparing the voltage at the output (Vout) to a reference voltage (Vref) and then controlling the current that flows through the transistors by using a pulse width modulation (PWM) technique.

The PWM technique is used to control the current flow through the transistors. The PWM works by increasing or decreasing the size of the pulses depending on the difference between the required output voltage and the reference voltage. The pulses are then used to control the current flowing through the transistors. When the required voltage is different from the reference voltage, the PWM will increase or decrease the size of the pulses to increase or decrease the current flow through the transistors and in turn achieve the desired output voltage.

The MIC94345-GYMT-TR also features protection features including Over Current Protection (OCP), Short Circuit Protection (SCP) and Over Temperature Protection (OTP). The OCP and SCP features are activated when the current drawn from the regulator exceeds the maximum output current limit of 5A. Once the current limit is exceeded, the regulator will shut off to protect the circuit from damage. The OTP feature is activated when the regulator\'s temperature reaches temperatures above 125°C.

The MIC94345-GYMT-TR is an excellent choice for applications where a low quiescent current, high PSRR and wide input voltage range are needed. It has a wide input voltage range of 3.1V to 21V and can provide a steady output voltage of between 0.9V and 18V. The device features both Over Current Protection (OCP) and Over Temperature Protection (OTP) to ensure safe operation and prolong device life. The PWM technique used by the MIC94345-GYMT-TR provides accurate and reliable regulation of the output voltage.

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