PT78ST105S

Voltage - Output 3:	--
Base Part Number:	PT78ST105
Size / Dimension:	0.94" L x 0.90" W x 0.34" H (23.9mm x 22.9mm x 8.6mm)
Package / Case:	3-SMD Module
Mounting Type:	Surface Mount
Efficiency:	85%
Operating Temperature:	-40°C ~ 85°C
Features:	OTP, SCP
Applications:	ITE (Commercial)
Current - Output (Max):	1.5A
Series:	PT78ST100
Voltage - Output 2:	--
Voltage - Output 1:	5V
Voltage - Input (Max):	38V
Voltage - Input (Min):	9V
Number of Outputs:	1
Type:	Non-Isolated PoL Module
Part Status:	Obsolete
Packaging:	Tray

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DC-DC Converters: PT78ST105S Application Field and Working Principle

The PT78ST105S is a DC-DC converter module from Powertech, which is an integrated power module with high efficiency PWM boost control. This module is designed to provide a safe and reliable power conversion with low output voltages and high current capacity (up to 5A). It is capable of providing a wide range of output voltages from 0.8V to 35V. The PT78ST105S module consists of a power control device (such as a power MOSFET) connected to the primary input voltage sources. The primary voltage is then conditioned to provide the required output voltage. The secondary output is then monitored to provide protection from over-current and over-voltage conditions. Additionally, the module has adjustable output current limiting and temperature protection.The PT78ST105S module is designed for use in a wide range of applications in the power electronics industry, including power supplies for computers, laptops, mobile phones, and other electronic devices. It is also suitable for powering low-voltage motors and LEDs. In each application, the PT78ST105S provides a reliable and efficient output voltage and current regulation.The PT78ST105S module utilizes Pulse Width Modulation (PWM) technology for its power conversion. This technology works by modulating the duty cycle of the pulses sent to the output devices. The width of the pulses regulates the output voltage and current of the output load, allowing for a wide range of output voltages and currents to be produced with very little performance variance.The PT78ST105S module also features an integrated current limit and voltage over-current protection circuit. This ensures the safety of the module and the connected load during operation, by limiting the current output at the input voltage. Additionally, the module can also support a full over-current protection based on the selected output voltage and current levels.In conclusion, the PT78ST105S is an advanced DC-DC converter module from Powertech. It is designed for use in a variety of applications requiring reliable and efficient power conversion. The module utilizes PWM technology for its power conversion and features an integrated current limit and voltage over-current protection circuit.

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