PT4413C

Current - Output (Max):	20A
Base Part Number:	PT4413
Size / Dimension:	2.58" L x 1.62" W x 0.47" H (65.5mm x 41.1mm x 12.0mm)
Package / Case:	21-SMD Module
Mounting Type:	Surface Mount
Efficiency:	92%
Operating Temperature:	-40°C ~ 85°C
Features:	Remote On/Off, OCP, OTP, OVP, UVLO
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	100W
Series:	Excalibur™ PT4410
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	3.4 ~ 5.7 V
Voltage - Input (Max):	75V
Voltage - Input (Min):	36V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Obsolete
Packaging:	Tray

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DC DC Converters

DC/DC converters are devices that are used to convert direct current from one voltage level to another. With the advances in technology, it has become increasingly popular to use DC/DC converters for various applications. One such device is the PT4413C. The following section will discuss the application field and the working principle of the PT4413C.

Application Field of the PT4413C

The PT4413C is a monolithic negative charge pump that is typically used for step-down DC/DC converter applications. It is a highly integrated device that combines a four-switch buck converter, a DC/DC converter controller, and a power MOSFET into a single 8-pin TSSOP package. It features a wide input voltage range from 4.5V to 28V and an adjustable output voltage range from 0.5V to 17V. Furthermore, it can deliver up to 1.2A of output current with very low ripple. The low quiescent current of the PT4413C makes it an ideal choice for applications that require high efficiency and low power consumption. Moreover, the device offers excellent output transient response and soft-start capabilities. As such, it is widely used in portable devices such as mobile phones and digital cameras, as well as other electronic equipment such as robotic systems and medical devices.

Working Principle of the PT4413C

The PT4413C is a switched-mode DC/DC converter that employs a four-switch buck converter and a controller to regulate the output voltage. It consists of four switches, two transistors (T1 and T2), and one rectifier (D1). The switches are negative-switched and are connected in a totem-pole configuration. This configuration enables bidirectional current flow between the input and output pins. The four switches are controlled by a DC/DC converter controller. It monitors the output voltage and adjusts the switching frequency accordingly. When the controller detected a certain level of voltage at the output pin, it will trigger the switches to conduct. This causes current to flow from the input to the output, thereby reducing the output voltage. Additionally, the controller will adjust pulse width modulation (PWM) and soft start functions in order to regulate the output voltage.

Conclusion

The PT4413C is a highly integrated DC/DC converter that can be used in a wide variety of applications. It utilizes a four-switch buck converter and a controller to regulate the output voltage. Furthermore, it boasts a low quiescent current and excellent output transient response, making it an ideal choice for portable devices and other electronic systems.

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