PT4105CT

Current - Output (Max):	1.25A
Base Part Number:	PT4105
Size / Dimension:	1.67" L x 1.48" W x 0.34" H (42.4mm x 37.6mm x 8.6mm)
Package / Case:	6-SMD Module, 5 Leads
Mounting Type:	Surface Mount
Efficiency:	82%
Operating Temperature:	-40°C ~ 85°C
Features:	Remote On/Off, OTP, SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	15W
Series:	PT4100
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	12V
Voltage - Input (Max):	40V
Voltage - Input (Min):	18V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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DC-DC ConvertersDC-DC converters are electrical components that serve to provide a safe and efficient solution for converting direct current (DC) voltages to different DC voltages. This is sometimes done to adjust the voltage level or to step up or step down a voltage level depending on the application. There are a variety of DC-DC converters available each with its own set of advantages and disadvantages, and the type of converter chosen for a specific application will depend on the needs of the environment. One type of DC-DC converter is the PT4105CT, which is a device used in applications whereby isolated DC inputs require stepped-down outputs. The PT4105CT provides a high-efficiency, low-ripple solution for these applications by using its buck-boost converter topology to regulate both input and output voltages.The PT4105CT features a wide DC input voltage range of 9V to 40V and a low-input current stand-by. It also features a selectable output voltage range of between 0.6V to 2.2V and is adjustable from a precision resistive divider or from digital-control pins using an external voltage reference. Inputs of the PT4105CT are protected against overvoltage transients up to 40V, while outputs are protected against up to -25A during a system-fault overload. Additionally, all pins are protected against 8kV static discharge, and the device is equipped with short-circuit protection and internal thermal shutdown. When it comes to the operating principle of the PT4105CT, it is an unregulated DC-DC converter that uses a buck-boost technique to convert the input voltage into an isolated output voltage. The buck-boost converter is capable of both stepping up and down the input voltage based on its need for the output voltage. At its heart, the PT4105CT uses a low-ripple synchronous buck-boost converter topology based on a pulse-width modulation (PWM) architecture. The PWM modulates the switching frequency of its topology between 4.6MHz and 500kHz, according to the input voltage, to ensure output regulation and minimize consumption of power. The PT4105CT is suitable for applications that require a wide-input range, from 9V to 40V, and a selectable output voltage ranging from 0.6V to 2.2V. Some common applications for the PT4105CT include powering microcontrollers, distributed power supplies, automotive systems, portable electronic devices, and other industrial applications. In conclusion, the PT4105CT is a cost-efficient, simple, and efficient DC-DC converter with a wide input voltage range and selectable output voltage. It is a highly reliable solution for applications such as powering microcontrollers, distributed power supplies, automotive systems, portable electronic devices, and other industrial applications. By using its buck-boost converter topology and PWM architecture, the PT4105CT provides optimal performance and protection against a variety of system faults.

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