LTC7801HFE#PBF

Frequency - Switching:	50kHz ~ 900kHz
Base Part Number:	LTC7801
Supplier Device Package:	24-TSSOP
Package / Case:	24-TSSOP (0.173", 4.40mm Width) Exposed Pad
Operating Temperature:	-40°C ~ 150°C (TJ)
Control Features:	Current Limit, Power Good, Soft Start, Tracking
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	100%
Series:	--
Voltage - Supply (Vcc/Vdd):	4 V ~ 140 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
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:
The LTC7801HFE#PBF is a monolithic synchronous switch-mode DC/DC controller with integrated MOSFETs that requires just two external resistors for voltage-mode operation. It offers high-efficiency regulation of DC/DC voltage converters operating at up to 1.5MHz. The LTC7801HFE#PBF offers the flexibility for a range of applications such as: generating a point-of-load (POL) DC output, powering RF amplifiers and automotive electronics, receiving 12V and 5V power input and providing low-noise main supplies of multiple power system domains.Application Field:
The LTC7801HFE#PBF is widely used in a wide range of applications, from point-of-load-to point-of-load (POL) DC output, power management of RF amplifiers, automotive electronics and mobile devices, to providing stable voltage for digital/analog circuits of industrial and consumer applications. 1. Automotive Electronics: It is used to provide multiple low-noise voltage supply to automotive electronic systems including sensors, cameras, and displays. It has high efficiency, low EMI and can react fast when the input voltage is often subjected to changes such as those caused by start-stop-systems and alternator speeds.2. Point-of-load (POL) DC Output: It is designed to generate POL DC outputs with high efficiency, step-down and/or step-up conversion, low EMI and high accuracy.3. RF Amplifiers: The LTC7801HFE#PBF can be used to power RF amplifiers, providing logic supply for their digital playback control circuits, as well as a low-noise and high-efficiency DC power supply for the RF power amplifier stages.4. Industrial and Consumer Electronics: The low noise and high precision of the LTC7801HFE#PBF make it suitable for powering digital/analog circuits of industrial and consumer electronics applications.Working Principle:
The LTC7801HFE#PBF operates on a synchronous switch mode working properties. This involves two MOSFETs, one P MOSFET and one N MOSFET, operating in paired switching mode to achieve the desired output voltage. The LTC7801HFE#PBF uses an internal current-mode control system with dual loop feedback, which consists of an error amplifiers and an external voltage-sense comparator. The voltage-sense comparator compares the output voltage with an external set-point and then provides error correction signals to the error amplifier.The error amplifier provides PWM (Pulse-Width Modulation) control signals to the MOSFETs, controlling their on and off states. By combining the output of the error amplifier and the sense comparator, the LTC7801HFE#PBF is able to monitor and adjust the voltage output, ensuring that the voltage reaches the desired set-point.Conclusion:
The LTC7801HFE#PBF is a monolithic synchronous switch-mode DC/DC controller with integrated MOSFETs that requires just two external resistors for voltage-mode operation. It is widely used in various applications, from automotive electronics to industrial and consumer electronics, powering RF amplifiers and generating point-of-load (POL) DC output. The LTC7801HFE#PBF is designed to provide high-efficiency regulation of DC/DC voltage converters operating at up to 1.5MHz with low EMI and high accuracy. Using an internal current-mode control system with dual loop feedback, the LTC7801HFE#PBF is able to monitor and adjust the voltage output, ensuring that the voltage reaches the desired set-point.

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

Part Number	Manufacturer	Price	Quantity	Description