TPS62260DDCRG4

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The TPS62260DDCRG4 is a high-efficiency, small-size, and low-output voltage, synchronous DC/DC Step-Down (Buck) Converter from Texas Instruments. The device uses a current-mode PWM controller and a synchronous switching MOSFET controlled by an external low-swing, current-mode signal to regulate the output voltage within 1% accuracy. It can operate down to 0.9V or 950mV with just 540bytes of circuit area and 0.54nA quiescent current. TPS62260DDCRG4 is especially designed for low power and portable applications.

Application Field and Working Principle

The TPS62260DDCRG4 is suitable for various power supply applications,from handheld and wearable devices to electric vehicles and other portable/mobile systems. Typical applications include mobile phones, tablets, portable gaming devices, cameras, electric vehicles, electric vehicles, and other embedded systems.

Working Principle

The working principle of the TPS62260DDCRG4 is based on the DC/DC Switching or Buck Converter topology, the input voltage is stepped down to the output voltage.In a DC/DC buck converter, input voltage is applied to a large capacitor CIN, dubbed the input filter capacitor. The DC voltage of the input is then stepped down by the input switch and the boost inductor. The inductor establishes a current flow path between the input and output. When the input switch closes, the inductor current flows and the voltage across the inductor is defined by the inductor equation:Vin-Vout= L(di/dt)The control loop regulates the inductor current, and the PWM converter of TPS62260DDCRG4 closes the switch for a duration determined by the PWM signal. The output capacitor provides a low-impedance path for the inductor current, the output capacitor also provides supplementary energy during load transients. The output voltage is regulated to the desired voltage and current by controlling the duty ratio of the PWM signal.

Features

The TPS62260DDCRG4 has many desirable features, such as:

• Wide input voltage range of 1.8V to 5.5V
• High step-down ratio offers wide output current range down to 0.2A or 180mA
• Low output voltage range of 0.95V-3.3V
• High efficiency of up to95% over a wide load current range
• Low output ripple and noise
• High maximum output current of 5A
• Small power conversion area of 540 bytes
• Low quiescent current of 0.54nA
• Low conduction losses
• High-frequency capability of up to 1MHz
• External soft start and input/output overvoltage protection
• Thermal shutdown and output disconnect function

Conclusion

The TPS62260DDCRG4 is a high-efficiency and low-output voltage Synchronous Buck Converter, suitable for portable applications. It features wide input voltage range, high step-down ratio and low output voltage range, high efficiency, low output ripple and noise, high maximum output current, small power conversion area, low quiescent current and low conduction losses, high-frequency capability, external soft start, input and output overvoltage protection, and thermal shutdown and output disconnect functions. This device is an ideal solution for DC/DC buck converter applications in portable/mobile systems.

The specific data is subject to PDF, and the above content is for reference