NCP7915CTG

Voltage Dropout (Max):	--
Base Part Number:	NCP79
Supplier Device Package:	TO-220AB
Package / Case:	TO-220-3
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 125°C
Protection Features:	--
Control Features:	--
PSRR:	--
Current - Output:	1A
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	15V
Voltage - Input (Max):	30V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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NCP7915CTG Application Field and Working Principle

NCP7915CTG is a 3.5A, ultralow-voltage bandgap linear voltage regulator. It offers a few key features. With a low dropout voltage and a wide input voltage operating range, it can provide both power and protection over an unprecedented number of input conditions. In addition, its LDO architecture makes it easy to adjust the output voltage and the programmable, adjustable shutdown voltage can customize the operating behavior even further. Ultimately, the NCP7915CTG can offer superior performance in linear voltage regulation applications.

1. Application Field

The NCP7915CTG can operate in a wide range of input voltages, from 1.5 V to 5.5 V and is ideal for powering up a device. Its exceptional performance and features make it one of the most capable linear voltage regulators,with a wide range of applications,including:

• Cellular handsets
• Digital cameras/camcorders
• Personality cards
• Wireless and infrared modems
• MP3 players
• Pagers
• Bluetooth applications

2. Working Principle

The NCP7915CTG utilizes a low dropout linear regulator design to regulate the output voltage from an input voltage source. The device is formed by two transistors, a resistor, and several capacitors. This circuit is known as a bandgap voltage reference, used to compare the input and output voltages to determine the necessary current flow. The voltage reference is used to monitor the output voltage and to regulate the current accordingly.The NCP7915CTG also uses an adjustable, low dropout (LDO) regulator to increase the output current capability of the device. An LDO voltage regulator works by lowering the internal impedance of the device, allowing more current to flow through it. This enables the device to provide higher current output at a lower input voltage, ensuring that the output voltage remains relatively constant under a wide range of input voltages.In order to increase the efficiency and the versatility of the device, the NCP7915CTG also features an adjustable, programmable shutdown voltage. This allows the user to customize the shutdown voltage to their desired level, ensuring that the device only powers up when it is needed.

3. Conclusion

The NCP7915CTG is a 3.5A, ultralow-voltage bandgap linear voltage regulator. It is capable of operating in a wide range of input voltages, from 1.5 V to 5.5 V, and is ideal for powering up a device. Its features make it one of the most powerful linear voltage regulators on the market. With its low dropout voltage and adjustable, programmable shutdown voltage, it can provide superior performance and flexibility in a wide range of applications.

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