LTC3560IS6#TRMPBF Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	0.6V
Base Part Number:	LTC3560
Supplier Device Package:	TSOT-23-6
Package / Case:	SOT-23-6 Thin, TSOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	2.25MHz
Current - Output:	800mA
Voltage - Output (Max):	5.5V
Series:	--
Voltage - Input (Max):	5.5V
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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LTC3560IS6#TRMPBF Application Field and Working Principle

Introduction

The LTC3560IS6#TRMPBF is a high-performance, high-efficiency synchronous step-down DC/DC power converter IC that can be used to power systems from a variety of sources, including digital control systems, portable and battery-powered devices, automotive applications, and many others. It is capable of providing up to 4A of output current, with a wide linear-adjustable output voltage range of 2.5~5.5V (up to 10A at a fixed output page under optimized conditions). The device also features adjustable switching frequency up to 1MHz, low quiescent current and 100% duty cycle (forced) mode for ultralow-power applications.The LTC3560IS6#TRMPBF is robust and efficient – supporting up to 95% efficiency under typical load conditions. It requires no external inductors or capacitors, allowing for a easy-to-use, minimal external components solution. Additionally, the IC features advanced features such as fast transient response, independent enable pins, and advanced Current Mode Control, providing reliable and efficient performance.

Applications

The LTC3560IS6#TRMPBF is an advanced, high performance DC/DC power converter IC intended to provide an efficient and cost effective solution for powering a wide range of digital control systems, portable and battery-powered devices, automotive applications, and other applications that require very different output voltages and currents.

• High power digital control systems
• RF power amplifiers
• Portable and handheld equipment
• Battery-powered devices
• Automotive applications
• White goods
• Industrial power systems
• High-performance computing platforms

Working Principle

The LTC3560IS6#TRMPBF is a voltage buck regulator (step down) and operates as a switching converter in either buck or boost mode. The input voltage must be greater than the output voltage. The IC is designed to allow for both synchronous and non-synchronous operation, and features a Phase-Lock Loop (PLL) clock that allows for a fast and efficient current mode control operation. The LTC3560IS6#TRMPBF operates in two modes: the buck mode and the boost mode. In the buck mode, the device steps down or converts a high voltage to a lower one via the internal, high frequency switching. The switching frequency is adjustable from 100kHz to 1MHz. In this mode, the efficiency of the device is very high since the output is as close to the input voltage as possible.Whereas in the boost mode, the device steps up or converts a low voltage to an higher one via the internal switching. During this mode, the frequency will increase as the input voltage drops below the output voltage. This provides a reliable and efficient boost operation, and the ability of the device to handle wide input voltage range.The device also has power saving features such as a user-supported mode that optimizes the system performance during light-load conditions. Through the PLL, the device provides fast-dynamic response, allowing it to provide a very precise and stable output voltage over a wide range of load currents.The LTC3560IS6#TRMPBF also has several safety features including overvoltage protection (OVP), overcurrent protection (OCP) and over-temperature protection (OTP). Additionally, the device features a soft-start function that prevents sudden large inrush current from occurring during power-up.

Conclusion

The LTC3560IS6#TRMPBF is an advanced, high-performance, highly efficient, voltage buck (step-down) DC-DC power converter intended for use in digital control systems, portable and battery-powered devices, automotive applications, and other applications that require a wide range of output voltages and current. It boasts of a wide-range of adjustable output voltage range (2.5V to 5.5V), high peak output current capability (up to 10A) with low quiescent current and up to 95% efficiency under typical load conditions, as well as programmable frequency adjustment. Furthermore, the device also comes with advanced safety features such as OVP, OCP, and OTP. The LTC3560IS6#TRMPBF is a reliable and efficient DC-DC power converter IC

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