TPS62362YZHR Integrated Circuits (ICs)

Introduction

The Texas Instruments TPS62362YZHR is a synchronous, step-down DC-DC switching regulator specifically designed to power efficiency-sensitive systems. It is designed to provide a stable 3.2 V output over a wide input voltage range. In addition to providing excellent efficiency, the TPS62362YZHR is also capable of operating at high switching frequencies, allowing for greater power density as well as allowing the use of smaller external components.

Application Field

The TPS62362YZHR is designed for applications requiring high power efficiency and high power density. It is suitable for point-of-load converters in a wide range of automotive, industrial, medical, and consumer applications. Some of the most common applications for this device include cell phones, PDAs, high-powered LED lighting, automotive systems, set-top boxes, and factory automation.

Working Principle

The TPS62362YZHR employs a synchronous, step-down DC-DC switching regulator topology, wherein an internal low-side MOSFET and an external high-side MOSFET are used to drive a voltage divider divider circuit. This circuit creates an output voltage that is proportional to the input voltage, and is determined by the resistor divider network used. By varying the ratio of the resistor network, the output voltage can be controlled without changing the input voltage.

Inside the TPS62362YZHR, the MOSFETs switch at a fixed frequency determined by an internal oscillator. The switching frequency can be adjusted externally by connecting an external clock signal to the SYNC pin. The internal oscillator is designed to run at a fixed frequency of 2.2 MHz, allowing for a high efficiency switch mode operation. The duty cycle of the MOSFETs is fixed by an error amplifier, which senses the difference between the desired output voltage and the actual output voltage.

Conclusion

The TPS62362YZHR is a synchronous, step-down DC-DC switching regulator specifically designed to power efficiency-sensitive systems. It is capable of providing a stable 3.2 V output over a wide input voltage range and is suitable for a range of automotive, industrial, medical, and consumer applications. The device employs a synchronous, step-down DC-DC switching regulator topology, wherein an internal low-side MOSFET and an external high-side MOSFET are used to drive a voltage divider divider circuit. By varying the ratio of the resistor network, the output voltage can be controlled without changing the input voltage. The internal oscillator is designed to run at a fixed frequency of 2.2 MHz, allowing for a high efficiency switch mode operation.