LT8711IFE#TRPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Output Type:	PWM
Function:	Step-Up, Step-Down
Output Configuration:	Positive
Topology:	Buck, Boost, Buck-Boost, SEPIC
Number of Outputs:	1
Output Phases:	--
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 42 V
Frequency - Switching:	100kHz ~ 750kHz
Duty Cycle (Max):	100%
Synchronous Rectifier:	No
Clock Sync:	Yes
Serial Interfaces:	--
Control Features:	Enable, Frequency Control, Soft Start
Operating Temperature:	-40°C ~ 125°C (TJ)
Package / Case:	20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package:	20-TSSOP
Base Part Number:	LT8711

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LT8711IFE#TRPBF belongs to the family of DC-DC Switching Controllers, the power management integrated circuitry (PMIC) from Richtek Technology Corp. This device integrates multiple functions including a pulse width modulator, a dual high and low driver, an oscillator and a current monitor/timer into a single package; enabling the LT8711IFE#TRPBF to offer various adjustable configuration making it suitable in a wide range of applications.In general, the main purpose of LT8711IFE#TRPBF is to provide efficient, low power management solutions and to regulate the voltage levels of an input DC source, such as a battery, in mobile and portable systems. The LT8711IFE#TRPBF uses a Pulse Width Modulation (PWM) technique to convert a regulated DC voltage into a pulsed signal, which is used to control the output voltage of a DC-DC converter. The LT8711IFE#TRPBF integrates a dual high and low driver which permits it to drive independently and synchronously two external N-Channel MOSFETs. Its ability to measure currents allows it to provide current-based over-current protection as well as to adjust the switching frequency of the converter in response to load changes. By controlling the voltage regulation, the LT8711IFE#TRPBF maximizes efficiency and reduces power loss.The LT8711IFE#TRPBF supports applications, including industrial, automotive and communications equipment, such as Li-Ion battery charger, instrumentation, and cameras. The main advantages of LT8711IFE#TRPBF are high efficiency, low noise levels and wide input voltage range. The LT8711IFE#TRPBF operates with a maximum frequency of 500kHz, allowing it to allow fast regulation, while its programmable under-voltage lockout and soft start capability prevents the device from initiating unnecessary pulsations at startup or during shutdown. It is rugged enough to survive general ESD (electrostatic discharge) and EMC (electromagnetic compatibility) conditions and the robust gate drivers enable working in adverse environments.To enable the high efficiency and long operating life, the LT8711IFE#TRPBF features an adjustable current pulse frequency and high-side current sense capability, enabling it to lower power consumption as it can sense and monitor current flow from output MOSFETs. In addition, the adjustable dead-time and switch-on loss feature reduces common mode noise, improving system performance and stability.The LT8711IFE#TRPBF also features an adjustable frequency-based burst mode operation for low-noise applications. This mode enables increased efficiency when operating with light loads where the output is not kept at a constant level. When activated, the LT8711IFE#TRPBF only switches the MOSFETs if the load requires more current.In conclusion, LT8711IFE#TRPBF can provide reliable, efficient and cost-effective voltage regulation and power management solutions, making it ideal for a variety of mobile, computing and industrial applications. Its integration of multiple functions and adjustable configuration, provide users of this PMIC with control over voltage fluctuations, reduce power loss and extend the life of mobile and portable systems.

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