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LTC1144IS8
+Lista de MateriaisSwitching Voltage Regulators LTC1144 - Switched-Capacitor Wide Input Range Voltage Converter with Shutdown
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FabricanteDispositivos analógicos
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Peça do Fabricante #LTC1144IS8
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Ficha Técnica LTC1144IS8 DataSheet
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Description
Key features of the LTC1144IS8 include low quiescent current, high efficiency, and the capability to operate over a wide input voltage range. It is ideal for battery-powered applications due to its low power consumption. The LTC1144 can handle input voltages up to 12V and provides an output current of up to 20mA, making it suitable for low to moderate power applications. Additionally, it offers features like short-circuit protection and a shutdown pin for power-saving purposes. Its simplicity and ease of use make it a popular choice for designers needing a reliable inverter in their circuits.
Equivalent
1. MAX1044: A similar charge pump voltage converter from Maxim Integrated.
2. ICL7660: A widely used charge pump voltage converter from Intersil (Renesas).
3. TC1044: A Microchip Technology equivalent to the ICL7660.
4. LM2660: A voltage converter from Texas Instruments with similar functionality.
Please verify specifications to ensure compatibility with your application.
Features
The LTC1144IS8 offers a high conversion efficiency, approximately 90%, and features a low output resistance, around 120 ohms, ensuring minimal voltage drop under load. It operates at a fixed frequency of 10kHz, which helps minimize noise and allows for smaller capacitors.
Additional features include built-in ESD protection, a shutdown pin to reduce power consumption when not in use, and the ability to be configured easily with minimal external components. With an 8-pin SOIC package, it is suitable for compact circuit designs. These characteristics make the LTC1144IS8 ideal for applications such as negative voltage generation, voltage doubling, and providing power to analog circuits.
Pinout
1. V+: Positive supply voltage input.
2. CAP+: Positive terminal for the external flying capacitor.
3. GND: Ground connection.
4. CAP-: Negative terminal for the external flying capacitor.
5. OUT: Voltage output.
6. LV: Low voltage tap, used for improving efficiency at low voltages.
7. NC: No connection (may also be used for additional functionality in some configurations).
8. FC: Frequency control pin, used to set the oscillator frequency.
The device is designed to be used in applications requiring voltage level adjustments, such as power supply circuits and battery-powered devices.
Manufacturer
Application
1. Voltage Inversion: Converting a positive input voltage into a negative output voltage, useful in operational amplifier circuits and other analog applications.
2. Voltage Doubling: Doubling a DC voltage for applications requiring higher voltages without additional power supplies.
3. Power Supply Generation: Providing power supply voltages for circuits in portable devices, such as smartphones and tablets.
4. Battery-Powered Systems: Extending battery life by efficiently managing power conversion in devices like cameras, sensors, and portable instrumentation.
5. Low-Noise Applications: Used in systems where low noise is critical, such as RF circuits and precision measurement devices.