LTC1550LCS8-2#PBF

Series:	--
Packaging:	Tube
Part Status:	Active
Function:	Step-Up/Step-Down
Output Configuration:	Negative
Topology:	Charge Pump
Output Type:	Fixed
Number of Outputs:	1
Voltage - Input (Min):	2.7V
Voltage - Input (Max):	5.5V
Voltage - Output (Min/Fixed):	-2V
Voltage - Output (Max):	--
Current - Output:	20mA
Frequency - Switching:	900kHz
Synchronous Rectifier:	No
Operating Temperature:	0°C ~ 70°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	LTC1550

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The LTC1550LCS8-2#PBF is an advanced, wide-VINDC/DC switching regulator IC from Analog Devices. It\'s a low dropout (LDO) linear regulator, designed to regulate a wide operating range of up to 16V DC to 1.5V DC. It\'s extremely well suited for an array of portable and other applications—such as battery powered equipment, microprocessors, digital cameras, and automotive electronics. Today, one cannot depending on a simple current limitation, but must provide a buck or boost architecture together with a buck converter that provides more accurate voltage control. The LT1550LCS8-2#PBF is composed of an NMOSFET gate driver, a high-side MOSFET transistor, and a low-side MOSFET transistor. In order to work efficiently, the IC has the ability to step down an input voltage from the range of 1.8V up to 16V to an output voltage of up to 1.5V. It operates on a maximum current limit of 700mA, and an output voltage ripple of ±4mV pp. The device also has a wide input voltage range and is ideal for regulated applications.The LTC1550LCS8-2#PBF can be used in various applications and industries. Its primary use is in mobile electronics, GPS systems, and medical electronics. Other use cases include the protection of sensitive circuitry during power-up, power supply sequencing, and protecting LED lighting datasheet designs from parasitic capacitance related issues. It can even be used as a voltage programmer to program step-down voltage regulators to limit current levels, even if the input voltage is too low.The working principle of the LT1550LCS8-2#PBF involves the use of two MOSFETs—a high-side MOSFET connected to the input voltage, and a low-side MOSFET connected to the output. The IC controls the gate of each MOSFET, it switches between them to regulate the output voltage. This is done by sensing the voltage difference between the input and the output and switching at the correct point as a result. This allows the output voltage to be set to the desired levels and remains stable.In conclusion, the LT1550LCS8-2#PBF is a versatile and efficient DC/DC switching regulator IC. It is suitable for the protection of sensitive circuitry on power-up, power supply sequencing, and LED lighting designs. It can also be used to program step-down voltage regulators to limiting current levels, even if the input voltage remains too low. The device is efficient, versatile, and has a wide operating range, making it an ideal choice for various applications and industries.

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