LT1374CS8#PBF

Voltage - Output (Min/Fixed):	2.42V
Base Part Number:	LT1374
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:	500kHz
Current - Output:	4.5A (Switch)
Voltage - Output (Max):	21.5V
Series:	--
Voltage - Input (Max):	25V
Voltage - Input (Min):	5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck, SEPIC
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

PMIC (Power Management IC) is a type of IC device specialized in managing power. It is widely used in many different applications which include computers, handheld devices, embedded systems, and more. Among the many PMIC devices, Voltage Regulators and DC DC Switching Regulators are two of the most important and widely used types. The LT1374CS8#PBF is a monolithic switching regulator designed to provide high-efficiency step-down of a high input voltage to a lower output voltage. In this article, we will be looking into the LT1374CS8#PBF and will discuss its application field and the working principle behind it.

Application Field

The LT1374CS8#PBF is a monolithic switching regulator specifically designed for systems which require low-power. It can deliver up to 2.0A output current and also features an auxiliary regulator for ultra-low output voltage applications. This makes it ideal for entry-level servers, laptops, portable instruments, and other similar electronic systems. It is also suitable for applications requiring high efficiency, such as energy harvesting, for example.

Working Principle

The LT1374CS8#PBF utilizes a two-phase buck-boost configuration to generate an efficient output voltage. This technique begins by switching a high voltage input through two PMOS transistors, each connected to a separate inductor. This creates two distinct phases, each with a different potential. The differential output voltage of the two inductors is then combined with a third inductor to produce the desired output voltage.The PMOS transistors are driven by a control circuit which operates in full-bridge mode. This control circuit is designed to adjust the duty cycle of the two transistors in order to maintain a stable output voltage. The control circuit also provides an adjustable current limit which prevents the output voltage from exceeding the design current limit. In order to improve efficiency, the control circuit is also capable of adjusting the switching frequency of the two transistors.

Conclusion

The LT1374CS8#PBF is a versatile and high-efficiency monolithic switching regulator. It is designed for low-power applications and features an auxiliary regulator for ultra-low output voltage applications. This makes it an ideal choice for entry-level servers, laptops, portable instruments, and other similar electronic systems. Furthermore, it utilizes an efficient two-phase buck-boost configuration, with a control circuit that is designed to adjust the duty cycle and switching frequency of the two PMOS transistors in order to provide a stable output voltage and improve efficiency.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description