LT1578CS8#TRPBF

Voltage - Output (Min/Fixed):	1.21V
Base Part Number:	LT1578
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	200kHz
Current - Output:	1.5A
Voltage - Output (Max):	14.1V
Series:	--
Voltage - Input (Max):	15V
Voltage - Input (Min):	4V
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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Introduction

The LT1578CS8#TRPBF is a voltage regulator, DC/DC switching regulator, specifically designed for point-of-load (POL) applications. Offering precise voltage regulation combined with high current capacity, the device is capable of powering a wide variety of portable, battery-powered products. This article will provide an overview of the LT1578CS8#TRPBF application fields and working principle.

LT1578CS8#TRPBF Application Fields

The LT1578CS8#TRPBF is designed for point-of-load (POL) systems, which have become increasingly popular in recent years. The device can provide precise voltage regulation with high current capacity for portable devices, such for digital cameras and PDAs. The LT1578CS8#TRPBF can also provide voltage regulation for memory and audio power supplies, ensuring the optimum performance of these sensitive components.

LT1578CS8#TRPBF Working Principle

The LT1578CS8#TRPBF voltage regulator uses a switched-mode architecture, known as “pulse-width modulation” (PWM), to control the output voltage. This architecture allows for superior precision and efficiency compared to more traditional linear regulators.The device works by sensing input voltage, and then adjusting the duty cycle of the PWM signal in order to maintain a precise output voltage. This feedback loop is continuous, allowing for dynamic load conditions.The device also incorporates a synchronous rectification process which helps to maximize efficiency. Synchronous rectification works by controlling the polarity of the switching transistors in order to maximize the amount of power delivered to the load while still maintaining the desired output voltage.

Conclusion

The LT1578CS8#TRPBF is a voltage regulator, DC/DC switching regulator, specifically designed for point-of-load (POL) applications. It is capable of providing precise voltage regulation with high current capacity for a wide variety of portable devices. The device works by utilizing a switched-mode architecture and a synchronous rectification process, both of which help to maximize efficiency and maintain precise output voltage.

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