XCL101A181ER-G

Voltage - Output 4:	--
Supplier Device Package:	CL-2025-02
Size / Dimension:	0.10" L x 0.08" W x 0.04" H (2.5mm x 2.0mm x 1.0mm)
Package / Case:	6-TDFN Exposed Pad
Mounting Type:	Surface Mount
Efficiency:	--
Operating Temperature:	-40°C ~ 85°C
Features:	--
Applications:	ITE (Commercial)
Current - Output (Max):	100mA
Series:	XCL101
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	1.8V
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	0.9V
Number of Outputs:	1
Type:	Non-Isolated PoL Module
Part Status:	Active

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### DC DC ConvertersDC to DC converters are used to convert either direct current (DC) or alternating current (AC) into a specific output voltage level and/or current level. These converters are used in a variety of applications, such as DC energy distribution or energy conversion from one voltage level to another. The XCL101A181ER-G is an offline DC-DC converter designed for use with mobile phone, digital camera, and other portable devices. The converter has a wide input voltage range of 8.0V to 36V and a wide output voltage range of 3.3V to 30V. The XCL101A181ER-G offers various protection functions, including input undervoltage, voltage foldback, overvoltage, and both user and overtemperature protection.The XCL101A181ER-G is an external non-isolated DC-DC converter with fixed switching frequency. It employs the synchronous PWM step-down topology for power conversion, a control scheme with current-mode control, and a high-performance integrated circuit (IC) in its design. This converter has a wide input voltage range of 8.0V to 36V and a wide output voltage range of 3.3V to 30V. The output current is able to be set as high as 1.8A. The output voltage is adjustable via an external resistor divider.The XCL101A181ER-G converter has the following features:* Wide input voltage range of 8.0V to 36V and output voltage range of 3.3V to 30V* High efficiency, up to 94% efficiency* Synchronous PWM step-down topology and current-mode control* High frequency switching, up to 500kHz switching frequency* Over-voltage, over-current, over-temperature, and under-voltage protection functions* Low EMI (electromagnetic interference) solutionThe XCL101A181ER-G converter can be used in a variety of applications, such as mobile phones, digital cameras, portable electronic devices, and other applications requiring reliable power conversion. It is well suited for applications which require low output ripple, ultra-high efficiency, and quick transient response.The working principle of the XCL101A181ER-G converter is based on synchronous PWM step-down topology, with current-mode control. The working of the converter is divided into two parts, the control stage and the power stage.The control stage converts a low voltage signal to a rectangular waveform. This signal controls the transistors, turning them on and off, thus modulating the voltage of the power stage output. The control stage includes an error amplifier, a high frequency oscillator, and a logic circuit. The error amplifier compares the output voltage and the reference voltage and outputs a signal to the oscillator. The oscillator outputs a control signal to the logic circuit, which then controls the transistors.The power stage includes transistors, an inductor, capacitors, and diodes. The inductor accumulates current during the on period of the transistors, then recovers the current in the off period. The capacitors then filter the output voltage waveform and the diode rectifies the voltage. The output voltage of the power stage is then connected to the load.In summary, the XCL101A181ER-G is a non-isolated DC-DC converter with fixed switching frequency and wide input and output voltage range, designed for mobile phone, digital camera, and other portable devices. The XCL101A181ER-G employs synchronous PWM step-down topology for power conversion, with current-mode control and high-performance integrated circuit. The working principle of the converter is based on a control stage and a power stage, which allows a quick response and an output ripple-free voltage. The XCL101A181ER-G can be used in a variety of applications requiring reliable power conversion.

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