LTC7815IUHF#TRPBF

Frequency - Switching:	320kHz ~ 2.25MHz
Base Part Number:	LTC7815
Supplier Device Package:	38-QFN (5x7)
Package / Case:	38-WFQFN Exposed Pad
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Power Good, Soft Start, Tracking
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	100%
Series:	--
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 38 V
Output Phases:	2
Number of Outputs:	3
Topology:	Buck, Buck, Boost
Output Configuration:	Positive
Function:	Step-Up, Step-Up, Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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

The LTC7815IUHF#TRPBF from Linear Technology is a wide input voltage range buck synchronous converter DC/DC controller. Designed with future-proof integrated FETs, it is suitable for applications needing high-efficiency power conversion, especially with challenging high-current source requirements. With a wide range of features like maximum duty cycle, output voltage use level detect, frequency foldback and thermal shutdown, LTC7815IUHF#TRPBF provides a high-performance and robust platform for many DC/DC control designs.

Application Fields

LTC7815IUHF#TRPBF is an ideal choice for a variety of DC/DC buck control applications that require high-power efficiency while maintaining a small form factor. Its wide input voltage range and up to 95% power efficiency make it a great solution for today\'s high-performance computing applications. It can be used in applications such as data centers, base stations and high-end networking devices where power efficiency and high reliability are necessary. The device is also suitable for automotive, industrial, avionics and medical applications. In automotive applications, for instance, its wide input voltage range allows for the conversion of higher input voltages from the car\'s battery into the system\'s lower operating voltage. This allows the vehicle to have better fuel economy and performance.

Working Principle

The LTC7815IUHF#TRPBF is a synchronous buck controller that can generate high-efficiency DC/DC converter designs. It works by producing a series of pulses to control the switching of the MOSFETs on its integrated FETs. When the switch is turned on, a high current flow is initiated and then when the switch is turned off, the current continues to flow through the inductor, but this time through the diode and back into the source. The current then flows through the capacitor, providing the current to the output terminals.The output voltage is regulated with a voltage sense amplifier and error amplifier that compare the output voltage to a reference input. A PWM ramp signal is generated by the oscillator, dividing the ramp into clock cycles. The oscillator also provides for frequency foldback, whereby the output frequency is reduced when the output current is increased. The LTC7815IUHF#TRPBF also features a maximum duty cycle setting, which allows the controller to prevent excessive power dissipation or to reduce the effective switching frequency when the voltage is low. It also features output voltage use level detect, which prevents the output voltage from going above the set level by detecting the voltage use level of the output capacitor. Additionally, the LTC7815IUHF#TRPBF is protected against excessive current, with built-in thermal shutdown and overcurrent protection. This ensures that the device is reliable and safe to operate.

Conclusion

The LTC7815IUHF#TRPBF is a wide input voltage range buck synchronous converter DC/DC controller from Linear Technology that offers high-efficiency power conversion in challenging high-current source applications. It is suitable for a variety of applications such as data centers, automotive, industrial, avionics and medical. Its wide input voltage range and up to 95% power efficiency make it an ideal solution for high-performance computing devices. In addition, it features a wide range of features like maximum duty cycle, output voltage use level detect, frequency foldback, and thermal shutdown for robust performance.

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

Part Number	Manufacturer	Price	Quantity	Description