ST662ABD-TR

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• Introduction of ST662ABD-TR
  
The ST662ABD-TR is a 3A synchronous monolithic DC/DC switching regulator designed with a metal-oxide-semiconductor field-effect transistor (MOSFET). This device is a non-isolated synchronous buck switching regulator, structured in a very small SOT23-6-DL package. It has two channel outputs, one of which is adjustable. The device also embeds an internal multiplier and a clock multiplier, allowing wide range of sub switching frequency adjustment. This allows the device to respond well to transient step loads with low noise, excellent light load efficiency and wide dynamic range.
• Application fields of ST662ABD-TR
  
The ST662ABD-TR is suitable for a variety of applications that require intermediate DC power levels. This includes portable or mobile devices, such as laptops, tablets and phones, where small size is the highest priority. With its wide range of adjustable switching frequencies, the device is also suitable for systems that need high speed data rate performance. Other applications include automotive and industrial electronics, AV systems, appliances, consumer electronics, and industrial equipment.
• Working principle of ST662ABD-TR
  
The working principle of the ST662ABD-TR is based on the MOSFET working as a switch. It features a synchronous rectifier that increases overall efficiency. The internal multiplier generates PWM signal for the power stage, which enables to select the desired switching frequency. The device also includes an internal oscillator for controlling the PWM duty cycle. This design uses a constant-frequency pulse width modulation (PWM) architecture, making its output stable and reliable.Functional loop and protection features are included in the device, allowing it to regulate the output voltage within a limited range. Undervoltage lockout, overvoltage protection, UVLO, thermal protection, overcurrent protection, and a number of other protection features are included in the ST662ABD-TR.
• Conclusion
  
The ST662ABD-TR is a 3A synchronous monolithic DC/DC switching regulator, designed with a MOSFET. It is suitable for a variety of applications that require intermediate DC power levels. The device embeds an internal multiplier and a clock multiplier, allowing wide range of sub switching frequency adjustment. To ensure the device performance, a number of protection features are included.

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