PT6526E

Voltage - Output 3:	--
Base Part Number:	PT6526
Size / Dimension:	1.71" L x 1.22" W x 0.42" H (43.4mm x 31.0mm x 10.7mm)
Package / Case:	14-SMD Module
Mounting Type:	Surface Mount
Efficiency:	78%
Operating Temperature:	-40°C ~ 85°C
Features:	Remote On/Off, SCP
Applications:	ITE (Commercial)
Current - Output (Max):	8A
Series:	PT6520
Voltage - Output 2:	--
Voltage - Output 1:	1.8V
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Part Status:	Obsolete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

A DC-DC converter is a device used in electronic and electrical systems to convert a source of direct current (DC) from one voltage level to another. It is an essential part of most modern electronic equipment, such as mobile devices, computers, and other appliances.The PT6526E DC-DC converter is a compact buck converter that offers high efficiency and low costs as compared to other converters. The device operates from 1.8 V to 5.5 V input voltage range. The PT6526E is capable of delivering up to 1.2A output current from an input voltage of 2.5 to 5.5V.

Application Field

The PT6526E is designed to reduce power dissipation and minimize EMI noise. It is suitable for use in a variety of applications, including light-emitting diode (LED) drivers, cell phones, digital cameras, and laptop computers. Additionally, the PT6526E can be used for point-of-load (PoL) programs that enable designers to reduce voltage and current losses in the power distribution network. This converter is also ideal for use in wearable applications such as smart watches and fitness bands, where its low quiescent current and low dropout voltage make it an attractive option.

Working Principle

The PT6526E is a step-down switching power supply for mobile applications. It uses a switched capacitor converter approach, which is a regenerative type of switching converter circuit.The switched capacitor converter works by transforming the input voltage to an oscillatory voltage using a switching device, which is then converted back to a DC voltage by a capacitor. The PT6526E utilizes a P-channel MOSFET as its main switch, while a smaller N-channel MOSFET is used as its main control switch.The control switch regulates the output voltage of the converter. When the voltage reaches the pre-set level, the switch is turned off. This stops the voltage from fluctuating and shortening the life of the converter. The control loop closes once the output voltage is stable.The output current of the converter is controlled by an on-chip current limiter. This helps to prevent the device from overloading and burning out. The device also includes a thermal shutdown feature, which shuts down the buck converter in case of an over-temperature situation.

Conclusion

The PT6526E DC-DC converter is a multi-purpose device that is designed for low quiescent current applications. It is suitable for use in a variety of applications, including LED drivers, cell phones, digital cameras, laptop computers, and wearable electronics. The device features a switching-based step-down converter approach, which offers high efficiency and low costs. Additionally, the on-chip current limiter and thermal shutdown features help protect the device from overloads.

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