LTC4227IUFD-4#PBF

Programmable Features:	Current Limit, Fault Timeout, Slew Rate
Base Part Number:	LTC4227
Feature Pins:	CPO1, CPO2, /EN, /FAULT, INTVCC, ON, OUT, /PWRGD, TMR
Supplier Device Package:	20-QFN (5x4)
Package / Case:	20-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Current - Supply:	2mA
Operating Temperature:	-40°C ~ 85°C
Current - Output (Max):	--
Voltage - Supply:	2.9 V ~ 18 V
Series:	--
Features:	Auto Retry, UVLO
Applications:	General Purpose
Internal Switch(s):	No
Number of Channels:	1
Type:	Hot Swap Controller, OR Controller
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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LTC4227IUFD-4#PBF Application Field and Working Principle

The LTC4227IUFD-4#PBF is a hot swap controller belonging to the Silent Switcher family of products from Linear Technology. It is designed for applications when continuous and reliable power is needed even in the event of power outages and overvoltages. It provides a simple, easy to use solution for hot-swapping ultra low-power systems in applications such as single board computers and wireless routers. This article will discuss the application field and working principle of the LTC4227IUFD-4#PBF.The main application field for the LTC4227IUFD-4#PBF is in systems that need ultra-low power operation, such as the single board computers, wireless routers, and other components that need to maintain steady operation even during power outages and overvoltages. It is also suitable for 3.3V and 5V hot swappable systems that require a high degree of current limiting accuracy and protection against input overvoltages. The working principle behind the LTC4227IUFD-4#PBF is quite simple. It features a complementary MOSFET power stage, advanced high-speed control loop, and an input voltage monitor. The MOSFET power stage is designed to provide a low resistance path between the input and output, allowing the maximum current transfer between the two points. The controller monitoring system then monitors the output current, tracking it as close as possible while also limiting the maximum allowable current. This advanced high-speed control loop helps to ensure that the system remains within its operational performance limits, allowing the circuit to be run efficiently. The input voltage monitor is the final part of the working principle of the LTC4227IUFD-4#PBF. It is designed to detect when the input voltage reaches its maximum safe level and to shut down the system before damage can occur to the components. This feature helps ensure that the system remains safe and secure from overvoltages, and further helps to prevent any related system malfunctions. In conclusion, the LTC4227IUFD-4#PBF is a highly effective hot swap solution for ultra-low power systems such as single board computers and wireless routers, providing reliable power even during power outages and overvoltages. Its advanced control loop and input voltage monitor ensure maximum safety for the components, making it an excellent choice for a variety of power system applications.

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