LT1307CS8#TRPBF

Voltage - Output (Min/Fixed):	1.22V
Base Part Number:	LT1307
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-20°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	600kHz
Current - Output:	600mA (Switch)
Voltage - Output (Max):	30V (Switch)
Series:	--
Voltage - Input (Max):	5V
Voltage - Input (Min):	1V
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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Introduction

The LT1307CS8#TRPBF is a modern DC-DC switching regulator designed to provide cost-effective and efficient power conversion. It is developed by Linear Technology and designed for use in battery-powered systems and other applications. This DC-DC switching regulator is housed in a very small, 8-pin, MSOP package. It provides an integrated, neat and clean solution for small point-of-load requirements. Due to its small size, it has become increasingly popular in the market for applications that require a standalone solution for DC-DC battery powered systems.

Features

The LT1307CS8#TRPBF is equipped with various features to provide efficient and reliable power conversion. In order to maximize efficiency, it uses Linear Technology\'s proprietary adaptive, on-time™ control scheme and high-frequency power MOSFETs. This feature allows it to achieve a low quiescent current of 1.5mA and a high efficiency of up to 95%. Furthermore, the LT1307CS8#TRPBF is also able to provide adjustable output voltage, allowing the user to set the output voltage to suit the needs of the system. On top of that, its switching frequency can be programmed from 500kHz to 2MHz in order to maximize the device\'s efficiency at any given output voltage.

Operation

The LT1307CS8#TRPBF operates with three different parts: the power stage, the control stage, and the feedback section. The power stage is composed of a high-side MOSFET and a low-side MOSFET; the two MOSFETs are combined into an H-bridge enabling bi-directional DC power flow. In a nutshell, the power stage will be putting out positive output voltage if the high-side MOSFET is switched on and the low-side is off. Vice versa, if the high-side MOSFET is off and the low-side is on, the output voltage will be negative. To assure power efficiency, the power stage must switch between its two MOSFETs rapidly. As such, the control stage is used to constantly monitor the power stage and switch the power MOSFETs on/off at a certain duty cycle in order to keep the output voltage stable. Lastly, the feedback section ensures accurate and stable output voltage by detecting the output voltage, comparing it against a reference voltage, and providing the difference back to the control stage in a manner known as closed loop control. Once the output voltage is in the vicinity of the reference voltage rather than a far distance away, the closed loop control scheme is activated, ensuring power efficiency and output accuracy.

Application Fields

Given its features and operation, the LT1307CS8#TRPBF has been widely employed in many different applications. Originally, the LT1307CS8#TRPBF was developed targeting battery-powered systems and high-efficiency, low-noise mobile devices, as its low quiescent power and high efficiency can reduce overall system power consumption. Additionally, the LT1307CS8#TRPBF can also be used in various industrial and instrumentation applications such as factory automation, medical equipment, and other sensor systems. Lastly, its small size makes it ideal for automotive and portable applications such as power amplifiers, notebook computers, onboard sensors, and much more.

Conclusion

The LT1307CS8#TRPBF is a very efficient and versatile DC-DC switching regulator. Its small size and low quiescent power make it an ideal choice for mobile and other battery-powered systems while its high efficiency and adjustable output voltage make it suitable for many other applications. The combination of features and versatile applications provide excellent power performance and make the LT1307CS8#TRPBF an excellent choice for point-of-load applications.

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