TPS610997YFFT

Introduction

The TPS610997YFFT device is a high-efficiency, low quiescent current, DC/DC Synchronous boost converter, featured by a wide range of input voltage (1.8 V to 5.5 V), up to 1.9 A continuous output current and an high level of efficiency (97 %). This device comes with circuitry integrated to reduce output voltage ripple and to provide enhanced operation stability. This three-pin device is particularly suitable to be used in applications such as tablet PCs, smartphones or digital cameras, operating with pne or two Li-ion batteries. 

Application Field and Working Principle

The TPS610997YFFT is part of a family of DC/DC switching regulators and could be classified in the PMIC - Voltage Regulators - DC DC Switching Regulators family. The primary purpose of this device is to convert an input voltage from 1.8 V to 5.5 V to an output voltage of 1.8 V, 2.8 V, 3.5 V or 3.6 V.

The TPS610997YFFT integrates the power switch and the synchronous rectifier, and generates the regulated output voltage using a voltage-mode, peak current-mode PWM architecture. A complete and stable system can be achieved by connecting two capacitors in the input and output circuits. The voltage mode loop provides excellent transient response and line regulation. The current mode loop provides a predictable output voltage ripple and improved loop stability.

One of the most salient features of this device is the advanced power saving design that enables an ultra-low quiescent current of only 92 µA. This feature is particularly useful in devices that duration of the battery power is largely determined by the standby or inactivity currents. Additionally, the device works with an average current mode control and an adaptive on-time control to reduce noise and reduce the output ripple voltage.

Moreover, this three-pin boost converter has special circuitry in place which allows to set the output voltage to 1.8 V, 2.8 V, 3.5 V and 3.6 V, without the need for external resistors. Additionally, there is a shutdown pin that enables the user to perform a soft start-up feature to reduce inrush current. In addition to its high-efficiency performance, the TPS610997YFFT features current limit and thermal protection circuitry.

Conclusion

To conclude, the TPS610997YFFT DC/DC synchronous boost converter is a high efficiency, low quiescent current, three-pin boost converter, which can be classified as part of the PMIC - Voltage Regulators - DC DC Switching Regulators family. This device offers the user a wide range of input voltage, up to 1.9 A continuous output current and an high level of efficiency of 97 %. Furthermore, it integrates special circuitry to reduce the output voltage ripple, provide excellent transient response and line regulation, and the ability to set the output voltage to 1.8 V, 2.8 V, 3.5 V and 3.6 V, without the need for external resistors. Finally, this device features current limit and thermal protection circuitry which make it an ideal choice for applications such as tablet PCs, smartphones and digital cameras.