TPS5103IDBRG4

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

TPS5103IDBRG4 Application Field and Working Principle

The TPS5103IDBRG4 is a 5-A/3.3-V synchronous step-down DC/DC controller from Texas Instruments (TI). It is part of TI\'s power management integrated circuit (PMIC) family, which is categorized into Voltage Regulators, DC/DC Switching Controllers. It is designed for powering applications where efficient and reliable DC/DC conversion and power distribution is needed.

Overview of TPS5103IDBRG4

The TPS5103IDBRG4 is an ideal solution for providing efficient, reliable and improved power conversion performance in applications such as advanced microprocessor systems, DSPs, FPGAs and other high current applications that require low output noise and high currents. It is designed to provide smooth transitions from high to low current levels by combining high efficiency synchronous conversion and pulse-width modulation (PWM) control technology. The switching voltage is regulated by 3.3V and uses two independent 5A low-side PMOS devices in a half-bridge configuration.

The TPS5103IDBRG4 includes overcurrent protection, thermal protection, and overvoltage protection. It has an external voltage regulator mode (VREF) that can be adjusted to optimize the current load and efficiency. The TPS5103IDBRG4 also includes integrated soft-start and frequency jittering to reduce EMI. It features an integrated voltage reference that can be trimmed to match the application’s needs.

Features and Specifications of TPS5103IDBRG4

The following are key features of the TPS5103IDBRG4:

• Operating temperature range from -40 ºC to +125 ºC
• Switch current rating up to 5 A
• Output voltage range of 0.8 V to 5.5 V
• Integrated soft-start and frequency jittering
• Integrated low-side MOSFETs with internal protection
• Internal compensation capacitor for loop stability
• Fault detection on open/abnormal feed current condition
• Programmable PWM switching frequency
• Thermal shutdown and overvoltage protection

In addition to its features, the TPS5103IDBRG4 also offers several advantages such as lower BOM costs, smaller form factor, improved power efficiency and lower system power consumption.

Working Principle of TPS5103IDBRG4

The TPS5103IDBRG4 is a synchronous step-down DC/DC controller that uses a switching technology based on pulse-width modulation (PWM) control. The two integrated low-side MOSFETs in the half-bridge configuration are used to generate a PWM square wave at the switching node of the output inductor. The duty cycle of the PWM square wave is determined by the feedback voltage across the output capacitor. The controller monitors the output voltage and adjusts the duty cycle accordingly. The result is an optimized conversion efficiency and constant output voltage.

The TPS5103IDBRG4 has an internal voltage reference and a dedicated current loop to provide an accurate output regulation. The current loop allows the converter to adjust the duty cycle to maintain a constant output current. The internal voltage reference is trimmed to a steady voltage from 0.8 V to 5.5 V. The TPS5103IDBRG4 also includes a programmable switching frequency, soft-start and frequency jittering for EMI reduction.

Applications of TPS5103IDBRG4

The TPS5103IDBRG4 is suitable for a wide range of applications that require efficient, reliable and improved power conversion performance. It can be used in advanced microprocessor systems, DSPs, FPGAs, Telecom, Networking and Medical applications. It can also be used in applications that require high output current with low noise and high efficiency. The TPS5103IDBRG4 is an ideal solution for powering networking, telecom, and battery powered products.

Conclusion

The TPS5103IDBRG4 is a 5-A/3.3-V synchronous step-down DC/DC controller from Texas Instruments designed for applications where efficient and reliable DC/DC conversion and power distribution is needed. It is part of the TI’s PMIC Voltage Regulators, DC/DC Switching Controllers and offers several advantages such as lower BOM costs, smaller form factor, improved power efficiency and lower system power consumption. The TPS5103IDBRG4 is suitable for a wide range of applications including advanced microprocessor systems, DSPs, FPGAs, Telecom, Networking and Medical applications.

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