NCP6343SFCCT1G Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Programmable
Number of Outputs:	1
Voltage - Input (Min):	2.3V
Voltage - Input (Max):	5.5V
Voltage - Output (Min/Fixed):	0.6V
Voltage - Output (Max):	1.4V
Current - Output:	3A
Frequency - Switching:	3MHz
Synchronous Rectifier:	Yes
Operating Temperature:	--

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NCP6343SFCCT1G Application Field and Working Principle

The NCP6343SFCCT1G is a dual-channel, synchronous step-down DC/DC converter that is part of the DC/DC switching regulator portfolio. It is a low-power converter that offers excellent power conversion efficiency from 1.8V to 7V input and is primarily used to power a wide range of consumer applications, including RF audio, gaming handhelds, and personal medical devices. It was developed with a focus on high-efficiency, low-power delivery, durability, cost-efficiency, and safety features.The NCP6343SFCCT1G has a fixed 2Mhz switching frequency and can support a wide range of inductor sizes, depending on the application requirements. The low input current ripple and large output voltage range make the device suitable for a wide range of battery-powered applications. With its synchronous buck design, it provides high-efficiency and fast transient response. The synchronous buck design also reduces the device\'s power consumption and improves light-load efficiency.The DC/DC switching regulator works by converting a DC supply voltage, usually supplied by a battery, into a regulated DC output voltage at a controlled current. This is usually done through a switching regulator circuit, which uses a switching transistor, such as a field-effect transistor (FET), to switch the supply voltage on and off. This creates a variable voltage, which is then shaped by an inductor and capacitor filter circuit, to produce the required output voltage.The NCP6343SFCCT1G uses a high-efficiency synchronous buck topology, utilizing the MOSFET\'s low on-resistance and zero-current switching features to achieve current-mode regulation and stability over the necessary output voltage operating range to drive low-voltage systems reliably. The combination of high efficiency, low quiescent current, high switching frequency and high-speed, current-mode operation make the device excellent for low-power applications. The integrated FETs offer high current levels, improves thermal efficiency without the need for additional external components and also reduce external components.To further enhance the efficiency of the device and reduce power loss, the NCP6343SFCCT1G uses an N-MOSFET and P-MOSFET combination which enable synchronous rectification at high-low current levels. This reduces power loss due to the conduction current of the FETs. The device also utilizes an optional Power-On-Reset (POR) circuit which allows an enhanced system-level safety and provides improved system stability and tolerance.The NCP6343SFCCT1G provides low output noise and excellent load transient response over a wide range of voltages. This makes the device ideal for powering audio, video and other sensitive electronics. In addition, it allows for simple and fast programming of the output voltage and features a low-noise modulation technique, extending the power performance of the device. The device is also able to self-start in cold conditions due to protection circuits.In conclusion, the NCP6343SFCCT1G is a dual-channel, synchronous step-down DC/DC converter that is great for a variety of consumer applications. It has a high efficiency, low-power delivery, and a wide range output voltage range. It also has low input current ripple and fast transient response, making it suitable for battery-powered applications. It also provides low output noise and excellent load transient response over a wide range of voltages. Furthermore, the device has integrated power-on-reset and other protection circuits, allowing it to be used in cold weather conditions.

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