LTC1550LCS8-4.1#TRPBF

Voltage - Output (Min/Fixed):	-4.1V
Base Part Number:	LTC1550
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	900kHz
Current - Output:	20mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Negative
Function:	Step-Up/Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction: The LTC1550LCS8-4.1#TRPBF is a general-purpose monolithic, single channel, current-limiting switch mode voltage regulator IC designed to meet a wide variety of high current, low dropout (LDO) applications. The device has a typically low quiescent current of only 8 µA which allows it to operate in a wide range of temperature and voltage ranges. Application Field: The LTC1550LCS8-4.1#TRPBF provides a simple and efficient solution for many power management applications. Its typical applications include power supply and RF power amplifiers and cellular base station power supplies, discrete-IP power supply, microprocessor/DSP power supplies, point of use voltage conversion, inrush current limiters, notebook PC power supplies, digital battery chargers and off-board chargers. Working Principle: The LTC1550LCS8-4.1#TRPBF is a single-channel power switch IC that operates using resistance-mode control. In its active state, the device switches on and off at a high frequency. The amount of time the switch is on is determined by an internal current-limit circuit. The device is capable of outputting up to 4.1A of current, but can be adjusted via external resistors to limit its output current. Additionally, an external voltage divider can be used to adjust the output voltage. The device is protected against overcurrent and overtemperature conditions with an internal thermal shutdown circuit that disables the switch if the junction temperature reaches a certain level. Summary: The LTC1550LCS8-4.1#TRPBF is a single-channel power switch IC designed for use in general-purpose high current, low dropout (LDO) applications. It features a typically low quiescent current of only 8 µA and can output up to 4.1A of current. The switch is operated using resistance-mode control and can be adjusted via external resistors to limit the output current and an external voltage divider to adjust the output voltage. The device is protected against overcurrent and overtemperature conditions with an internal thermal shutdown circuit.

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