TPS61260DRVT

Voltage - Output (Min/Fixed):	1.8V
Base Part Number:	TPS61260
Supplier Device Package:	6-SON (2x2)
Package / Case:	6-WDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	2.5MHz
Current - Output:	100mA
Voltage - Output (Max):	4V
Series:	--
Voltage - Input (Max):	4V
Voltage - Input (Min):	0.8V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TPS61260DRVT - DC DC Switching Regulators

DC DC Switching Regulators are an incredibly important and versatile power management component within modern electronics. The TPS61260DRVT is a regulator that has been engineered to work perfectly in many portable consumer and consumer applications, due to its high performance and low cost.

Overview

The TPS61260DRVT is a dual output, step down switching regulator designed to produce 3.3V and 1.2V supply voltages. It is a highly efficient device, utilizing a constant on-time control scheme to prevent components such as inductor and output capacitors from burning out due to overvoltage, while achieving 92% efficiency across line and load conditions. Its input voltage range is 4.8V to 8V, making it suitable for a variety of battery sources, whilst its low quiescent current (Iq) of 0.75mA in normal operation and 0.19mA in low power mode make it suitable for applications where power saving is desirable.

Features and Benefits

The TPS61260DRVT has a number of features and benefits that make it an attractive choice for DC-DC regulation in a wide range of applications, including:- Flexible input voltage range of 4.8V to 8V- Low quiescent current of 0.75mA in normal operation and 0.19mA in low power mode- 90% minimum efficiency across line and load conditions- 0.8V low dropout voltage- Output adjustment range of 3.3V to 5.5V- temperature range of -40° to +85°C- Over-current, over-voltage and over-temperature protection- Integrated soft start- Robust load transient capabilities

Applications

As the TPS61260DRVT is designed for cost-sensitive applications with space limitation, it is particularly suitable for various consumer products, including:- Portable electronics such as tablets, laptops, and other digital devices- LED drivers- Automotive electronics, such as DC/DC converters- Industrial and medical equipment

Working Principle

The TPS61260DRVT exploits a constant on time control technique for optimal efficiency across line and load conditions. It allows for a variable frequency, by varying the on time pulses, with frequency fold-back ensuring switching frequency is reduced for lower loads. This results in a low drop out voltage of 0.8V and high efficiency across line and load conditions. The device also has an integrated soft start, preventing surge currents from occurring during start up.The TPS61260DRVT also protects the load from over-current, over-voltage and over-temperature, by using a precise patent pending control loop regulating the voltage output. It is controlled by an on-chip differential sensing comparator and current-mode switch, which can detect and respond to a change quickly and accurately.

Conclusion

The TPS61260DRVT is a highly efficient, low cost and compact DC DC switching regulator that is perfectly suited for the wide variety of applications which require a compact and intelligent power management solution. Its features and benefits make it an ideal choice for many consumer and automotive electronics, LED drivers, industrial, and medical equipment. Its constant on-time control scheme and integrated protection circuitry ensure that it is able to perform optimally, regardless of load or temperature, whilst its low quiescent current allows it to meet the demands of low-power applications.

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