LTC3882EUJ#TRPBF

Frequency - Switching:	500kHz
Base Part Number:	LTC3882
Supplier Device Package:	40-QFN (6x6)
Package / Case:	40-WFQFN Exposed Pad
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Enable, Phase Control
Serial Interfaces:	I²C, PMBus
Clock Sync:	Yes
Synchronous Rectifier:	No
Duty Cycle (Max):	87.5%
Series:	PolyPhase®
Voltage - Supply (Vcc/Vdd):	3 V ~ 13.8 V
Output Phases:	2
Number of Outputs:	2
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	PWM Signal
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LTC3882EUJ#TRPBF Application Field and Working Principle

The LTC3882EUJ#TRPBF is an integrated High Voltage Synchronous Step-Down switching regulator, which belongs to a class of voltage regulators known as DC-DC switching controllers. It is designed to provide a very high efficiency power solution to a wide range of applications, such as industrial control systems, handheld communication devices, and automotive electronics.
Applications

The LTC3882EUJ#TRPBF is especially suitable for applications requiring high efficiency or low-cost power conversion. It is optimized for the use in high-power step-down converter systems such as DC-DC converters, buck converters, and pre-regulators. DC-DC converters are used to convert voltages ranging from 2.5 to 48V and are ideally suited for automotive and industrial applications.
The LTC3882EUJ#TRPBF is also an excellent solution for use in buck topology pre-regulator applications such as telecom and telecom battery-backup systems. Its high efficiency and low dc current requirements provide for reliable operation and low standby current which prolong battery life.
The LTC3882EUJ#TRPBF is also suitable for other power conversion applications, such as LED lighting, ac-dc and dc-ac power supplies, and personal computer systems with multiple input voltage sources.
Working Principle

At the heart of the LTC3882EUJ#TRPBF is a high-performance synchronous switching regulator. The switching regulator works by converting one voltage to another voltage, either higher or lower. The LTC3882EUJ#TRPBF has two separate input supply voltages. The first, called the power supply voltage, is the voltage to be regulated, and the second is an enable voltage. The enable voltage allows the regulator to be enabled or disabled.
The power supply voltage is first controlled by a high-precision feedback (FB) circuit. This circuit monitors the output voltage and adjusts the switching frequency accordingly. The switching frequency is adjusted to maintain the output at the desired level. The enable voltage is then used to enable or disable the LTC3882EUJ#TRPBF. When the enable voltage is received, the LTC3882EUJ#TRPBF switches on and the output voltage is regulated to the desired level.
The LTC3882EUJ#TRPBF is also capable of fast current-limit circuitry. This feature prevents the output voltage from going too high by limiting the current flowing through the load. The flow is dependent on the load, the input voltage, and the load current.
The LTC3882EUJ#TRPBF also includes several protection features such as output short-circuit and over-voltage protection to ensure reliable operation in the event of any overloading or fault conditions.
The LTC3882EUJ#TRPBF is a highly effective, efficient, and reliable DC-DC switching controller and can be used in a variety of applications. Its high accuracy and fast current-limit protection make it ideal for use in high voltage applications such as industrial control systems, telecommunication systems, and automotive electronics.

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