PT4311C

Current - Output (Max):	1.2A, 1.2A
Base Part Number:	PT4311
Size / Dimension:	1.90" L x 1.21" W x 0.32" H (48.3mm x 30.7mm x 8.0mm)
Package / Case:	18-SMD Module, 9 Leads
Mounting Type:	Surface Mount
Efficiency:	82%
Operating Temperature:	-40°C ~ 85°C
Features:	Remote On/Off, UVLO
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	6W
Series:	PT4310
Voltage - Output 3:	--
Voltage - Output 2:	-5V
Voltage - Output 1:	5V
Voltage - Input (Max):	75V
Voltage - Input (Min):	38V
Number of Outputs:	2
Type:	Isolated Module
Part Status:	Obsolete
Packaging:	Tray

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DC DC ConvertersPT4311C is a DC-DC converter which is manufactured by Powertech International. The DC-DC converter is a device that converts DC power from one voltage level to another voltage level. It is mainly used in power supplies, portable electronic devices, home appliances, industrial equipments and automotive electronics applications. PT4311C is a high-efficiency, advanced integrated circuit solution for DC-DC conversion. It is available in a small package size and offers high performance with low power dissipation. It integrates on-chip safety features that allow safe operation and features a wide output voltage range. PT4311C consists of two main components: inductor and capacitor. The inductor will store energy in its magnetic field and the capacitor will store energy in its electric field. Both components will supply energy to the converter when required.The PT4311C works on a PWM (pulse width modulation) principle. This is based on the concept of a carrier frequency which is modulated by a control signal. The controller will adjust the output voltage by modulating the duty cycle of the pulse-width modulator. The controller will monitor the output voltage level and adjust the duty cycle accordingly to ensure that the output voltage is maintained accurately.The PWM signal drives the power switch which is a MOSFET (Metal Oxide Semiconductor Field-Effect Transistor). When the switch is on, the current will flow through the inductor and the capacitor. When the switch is off, the current will be reversed and the energy stored in the inductor and capacitor will be released. The resulting voltage at the output will depend on the switching frequency, duty cycle, inductor and capacitor value. PT4311C is best suited for applications which require high efficiency, low cost, and high reliability. It is used in power supplies for laptops and servers, home appliances, consumer electronics, automotive systems and other applications.The PT4311C has a wide output voltage range of 4.5V to 24V. It features an on-chip brown-out detect circuit which will shut down the device when the input voltage falls below the lower brown-out voltage. This allows the device to operate reliably in the presence of wide input voltage fluctuations and reduce the need for external protection circuits.In addition, the PT4311C has many integrated safety features such as overvoltage protection, undervoltage protection, over-temperature protection, and over-current protection which can ensure safe operation of the device.The PT4311C is easy to use and can be quickly set up with a few external components. With its low power dissipation and advanced system features, it is an ideal choice for low power and high efficiency DC-DC conversion applications.

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