PT5526N

Voltage - Output 3:	--
Base Part Number:	PT5526
Size / Dimension:	--
Package / Case:	5-SIP Module
Mounting Type:	Through Hole
Efficiency:	79%
Operating Temperature:	-40°C ~ 85°C
Features:	--
Applications:	ITE (Commercial)
Current - Output (Max):	1.5A
Series:	Excalibur™ PT5520
Voltage - Output 2:	--
Voltage - Output 1:	1.2V
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	3.1V
Number of Outputs:	1
Type:	Non-Isolated PoL Module
Part Status:	Obsolete
Packaging:	Tray

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DC DC Converters

DC-DC converters are electronic components designed to convert a direct current (DC) to another DC voltage. They are commonly used in many applications such as automotive, renewable energy, telecoms, and consumer electronics. The PT5526N is a type of DC-DC converter, specifically a step-down DC-DC regulator which converts a higher input voltage to a lower, regulated output voltage, thus maintaining the output voltage within a narrow range.

Application Field

The PT5526N is primarily used to reduce the voltage of a higher-voltage battery or rail to a lower-voltage level, either for other parts of the circuit or to provide a stable voltage and current flow directly to the load. It is widely applied in a number of applications, including automotive, instrumentation and automotive data systems, module supply for DC-DC and LED drivers, 4U gaming console, telecoms infrastructure, secure mobile communications, and power management.

Features

The PT5526N has a wide input voltage range, from 3.3V to 34V, making it suitable for both Li-ion and NiMH batteries. It is also designed for a maximum output power of up to 16.4W, with a low supply current of up to 800 µA. The device also has a wide switching frequency range of 200 kHz to 1.2 MHz, which makes it suitable for a wide range of applications. The device also features a high step-down converter efficiency of up to 94%, making it ideal for providing power to a range of loads. Additionally, the device has a low-noise operation with a typical ripple current of only 155 mA.

Working Principle

The working principle of the PT5526N is to convert a higher input voltage to a lower, regulated output voltage. The device utilizes a buck converters boost-inductor step-down converter topology, which is connected in series with an opto-coupler feedback circuitry. The inductor in the buck converter stores energy in the form of a current during each power-cycle. This energy is then converted to output voltage through the use of a voltage regulator. This voltage regulator controls the output voltage by adjusting the on-time of the converter, ensuring that the output voltage is kept within a tight range. Additionally, the PT5526N incorporates a built-in P-channel MOSFET and N-channel MOSFET to improve efficiency and reduce the number of external components required.

Conclusion

The PT5526N is a step-down DC-DC regulator which is designed for use in a wide range of applications, including automotive, instrumentation, and data systems, LED drivers, 4U gaming console, secure mobile communications, and power management. It has a wide input voltage range, a maximum output power of up to 16.4W, low supply current of up to 800 µA, wide switching frequency range of 200 kHz to 1.2 MHz, and a high step-down converter efficiency of up to 94%. The device also features excellent ripple current regulation and low noise operation. The device utilizes a buck converter topology to convert a higher input voltage to a lower, regulated output voltage, while also featuring a built-in P-channel and N-channel MOSFET for improved efficiency and to reduce external components.

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