TPS61107RGER

TPS61107RGER is a newly released low-noise, low-dropout (LDO) voltage regulator from the Texas Instruments family for use in portable USB applications. The TPS61107RGER is a monolithic, linear regulator which new portfolio low-dropout voltage regulators are ideal for providing an optimal and reliable power supply to power sensitive audio equipment, smartphones and other applications in portable USB systems.

The device is housed in a small, 1.5mm-thick, 5-pin SOT-23 form factor, and has an output voltage accuracy of ±1.5%. It features an integrated 200mV reference and can be programmed with an external resistor or digitally with the integrated programmable register.

The device is designed to provide a low-noise, ultra-low-dropout voltage regulator alternative to larger, more expensive voltage regulator options. It features an efficient cascode topology with a very low dropout voltage of 200mV at a typical load current of 50mA. The device offers an adjustable output voltage of 0.6V to 5V, required for a wide range of audio, video and other applications.

The TPS61107RGER is ideal for a wide range of applications where very low dropout voltage and low noise performance is required. Typical applications include portable USB systems, power sensitive audio equipment, mobile phones, cameras, and other consumer electronics.

Features

The TPS61107RGER offers a range of features, including:

• Integrated 200mV reference
• Output voltage accuracy of ±1.5%
• Adjustable output voltage range of 0.6V to 5V
• Very low dropout voltage of 200mV at 50mA
• Low noise performance of 70µVrms
• Efficient cascode topology
• Integrated programmable register to set output voltage

Working Principle

The TPS61107RGER is a linear + switching voltage regulator, which means it uses a combination of linear and switching operation. The device uses an internal Voltage PSR (Proportional-Sensing Ratio) architecture, which is optimized for low-voltage, low-current applications.

The LDO begins by applying an internal voltage reference, which produces a voltage at the output node proportional to the input voltage. The proportion between the output voltage and the input voltage is commonly referred to as the PSR (Proportional-Sensing Ratio). The internal voltage reference and PSR allows the device to maintain an accurate output voltage.

The internal switching circuit is used to control the current flow in the device and optimize the efficiency of the regulator. The device also features a loop compensation circuit which provides stability to the circuit, allowing it to maintain a constant output voltage regardless of load variations.

The TPS61107RGER has an integrated programmable register which allows the output voltage to be set with an external resistor or digitally. This makes the device easily programmable, allowing it to be used in a wide range of applications.

Conclusion

The TPS61107RGER is a newly released low-noise, low-dropout voltage regulator for use in portable USB applications. It is a monolithic, linear + switching regulator which features an integrated 200mV reference, adjustable output voltage of 0.6V to 5V, and a very low dropout voltage of 200mV. It offers an efficient cascode topology, low noise performance of 70µVrms, and an integrated programmable register for setting the output voltage. This makes the device ideal for a wide range of applications where very low dropout voltage and low noise performance is required.