MIC94345-MYMT-TR

MIC94345-MYMT-TR Application Field and Working Principle

The MIC94345-MYMT-TR is a Linear Voltage Regulator that belongs to the category of PMIC (Power Management Integrated Circuit) devices. It is ideal for use in applications like iPad and tablet PC chargers, ATMs, point-of-sale (POS) terminals, and instrumentation systems. Specifically, it provides voltage stabilisation, input voltage range selection, external compensation and a built-in Current Sense Transistor (CSO) for sensing current. The MIC94345-MYMT-TR is available in two package types: a 7-pin shrink small-outline package (SSOP) and an 8-pin shrink small-outline package (SSOP).

Features

• Built-in voltage regulator module
• Input voltage range selection
• External compensation
• Built-in Current Sense Transistor (CSO) for current sensing
• Available in 7 and 8 pin packages

Operating Voltage and Current

The MIC94345-MYMT-TR supports an operating voltage range from 2.5 V to 7 V, with an adjustable output voltage of up to 5 V. The device is able to deliver a peak output current of up to 1 A, and can sustain a sustained output current of up to 250 mA. The device also features a built-in over-current protection circuit.

Application Areas

The MIC94345-MYMT-TR is ideally suited for use in a wide range of applications. It is particularly well-suited for use in iPad and tablet PC chargers, where its adjustable voltage output, coupled with its built-in current-sense capability, makes it an ideal choice for providing reliable, efficient and accurate power delivery. Its use in ATMs, point-of-sale (POS) terminals and instrumentation systems is also beneficial, as its built-in voltage stabilisation and input-voltage range selection capabilities enable a wider range of useable voltages and consequently, greater flexibility.

Working Principle

The MIC94345-MYMT-TR is a linear voltage regulator, meaning that it works by converting the input voltage and current into a stabilised regulated output voltage and current. The device is able to do this by tracking and comparing the input voltage with a predetermined target voltage, and then making modifications to the conversion process in order to maintain the target voltage. This is achieved through the use of an adjustable error amplifier and an external voltage divider. The external voltage divider is used to set the target voltage of the device, enabling the user to tailor the device’s output to specific requirements.

The MIC94345-MYMT-TR also has a built-in Current Sense Transistor (CSO) for monitoring current draw. This allows the device to monitor and adjust output current based on the specific current requirements of the system, ensuring that the device is always operating within its optimal range. The CSO also allows the device to provide user feedback on the current level in the system, making the device’s operation more efficient and intuitive.

Conclusion

The MIC94345-MYMT-TR is a great choice for any application that requires a reliable, adjustable and accurate power supply. With its adjustable output voltage, built-in Current Sense Transistor (CSO) and external voltage divider, the device is well-suited to use in a wide range of applications, including iPad and tablet PC chargers, ATMs, POS terminals and instrumentation systems. All of these features make the device an ideal choice for providing reliable, efficient and accurate power delivery.