TPS62085RLTR

Voltage - Input (Max):	6V
Supplier Device Package:	7-VSON (2x2)
Package / Case:	7-VFDFN
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	2.4MHz
Current - Output:	3A
Voltage - Output (Max):	6V
Voltage - Output (Min/Fixed):	0.8V
Series:	DCS-Control™
Voltage - Input (Min):	2.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TPS62085RLTR Application Field and Working Principle

Introduction

The TPS62085RLTR is a monolithic synchronous step-down voltage regulator designed for high performance systems that need ultra-low quiescent current consumption and compact size. The TPS62085RLTR is a part of the TPS62085 family, which provides a low-bias current, low-dropout voltage, and wide output voltage step-down regulator. The TPS62085RLTR is ideal for power management applications such as battery-powered and standalone devices, where high efficiency and minimum power loss are required.

Classification

The TPS62085RLTR belongs to the family of PMIC (Power Management and Integrated Circuit) products, mainly used in Voltage Regulators and DC DC Switching Regulators, and it specifically belongs to the group of low-quiescent current linear regulators.

Application Field

The TPS62085RLTR can be used in any application field that requires low-bias current and low-dropout voltage, as well as wide output voltage step-down regulators. It is particularly suitable for battery-powered and standalone devices that are required to operate in extreme temperatures and severe working conditions, where highly efficient and low power applications are needed for reliable system operation.

Working Principle

The working principle of the TPS62085RLTR is a quiescent current linear regulator with a low on-resistance. The TPS62085RLTR uses an integrated current source and a dynamic resistor to regulate its output voltage, resulting in an ultra-low quiescent current. The current source drives the dynamic resistor, which when combined with the voltage reference, regulates the output voltage to match the reference voltage. The dynamic resistor is adjusted in response to the output voltage output, and the current source is enabled whenever the voltage drop exceeds the threshold voltage set by the external resistor. The regulated output voltage is controlled by the reference voltage, current source and dynamic resistor.

Functional Blocks

The TPS62085RLTR is composed of several functional blocks. The main blocks include:

• A voltage reference circuit, which provides a stable reference voltage used to regulate the output voltage.
• A low power oscillator circuit, which provides the necessary timing signals for the regulation cycle.
• A low-dropout linear regulator, which allows for the regulation of the output to a desired level.
• A PWM controlled current source, which drives the dynamic resistor and is enabled when the voltage difference between the reference voltage and the output voltage exceeds the threshold voltage.

Conclusion

The TPS62085RLTR is an ultra low-quiescent current voltage regulator designed for applications requiring low-dropout and high-efficiency operation. It is an ideal solution for battery-powered and standalone devices that need to operate in extreme temperatures and severe working conditions. The TPS62085RLTR belongs to the family of PMIC (Power Management and Integrated Circuit) products, mainly used in Voltage Regulators and DC DC Switching Regulators, and its working principle is based on a quiescent current linear regulator that consists of a voltage reference, a low power oscillator, a low-dropout linear regulator, and a PWM controlled current source.

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