TPS62651YFFR

The TPS62651YFFR is a DC-DC switching regulator which has a wide range of applications and a versatile working principle. It is part of the PMIC - Voltage Regulators - DC DC Switching Regulator range, which is a series of voltage regulators with a high efficiency, small size and low parts count.

Applications of TPS62651YFFR

The TPS62651YFFR has a wide range of applications, including 5V to 3V, 3.3V to 1.8V and 5V to 1.2V down-steps, up-steps, buck boosts and battery chargers. With fixed peak current limit and internal soft-start these applications are ideal for portable applications, as it requires minimalistic design without compromising solution performance.

The TPS62651YFFR is capable to work with a wide input voltage range, making it suitable for applications such as wireless chargers, USB type C applications, and adapters from USB PD or AC single-ended input rail power supplies to multiple outputs.

Likewise, its output voltage accuracy, low quiescent current, combined with fast transient response great for battery-based charging systems, which require stable and accurate output voltage.

Working Principle of TPS62651YFFR

The TPS62651YFFR is based on a pulse-frequency modulation (PFM) topology, generated by an internal current source mode (CSM) PWM controller. This PFM controller works in an abrupt transition between PFM to Pulse Width Modulation (PWM) to keep the output voltage accurate within regulation.

The input voltage is provided to the PFM controller and the output voltage is monitored and feedback to the PFM controller via the FB pin. The PFM controller then adjusts the pulse-width modulation of the internal switch to regulate the output voltage according the voltage present at the FB pin. This process continues until it reaches a steady-state with the differences between input and output voltage fixed.

Moreover, the TPS62651YFFR also features over temperature protection (OTP) to ensure that the temperature stays at a safe level while the device is operating. This protection also helps to protect the device against failure if the device is misused.

Advantages of TPS62651YFFR

The advantages of TPS62651YFFR are numerous, thanks to its working principle and wide range of applications. These advantages include its high efficiency, small size and low parts count, enabling it to be used in portable applications while taking up less space; its wide input voltage range, allowing it to be used in various applications; excellent output voltage accuracy and fast transient response, making it ideal for battery-based charging systems; and over temperature protection, providing safety.

Conclusion

Overall, the TPS62651YFFR is an ideal DC-DC switching regulator for many kinds of applications, due to its wide range of applications and versatile working principle. Its high efficiency, small size, low parts count, wide input voltage range, excellent output voltage accuracy, fast transient response, and over temperature protection make the TPS62651YFFR an excellent option for applications such as 5V to 3V and 5V to 1.2V down-steps, up-steps, buck boosts, and battery chargers.