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LTC1144CS8
+NomenclatureSwitching Voltage Regulators LTC1144 - Switched-Capacitor Wide Input Range Voltage Converter with Shutdown
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FabricantÉquipement de simulation
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Pièce fabricant #LTC1144CS8
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Fiche technique LTC1144CS8 DataSheet
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En stock28989
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Spécifications
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Présentation
Description
Key features of the LTC1144CS8 include its ability to operate over a wide input voltage range, typically from 1.5V to 9V, making it versatile for various applications. It can deliver an output current up to 20mA, which makes it suitable for low-power applications. The device is known for its high efficiency and low quiescent current, which is beneficial for battery-powered devices.
The LTC1144CS8 is packaged in an 8-lead SOIC, making it compact and easy to integrate into circuit designs. Its simplicity, requiring minimal external components, and reliability make it a popular choice for designers needing efficient voltage conversion solutions in portable electronics and other low-power systems.
Equivalent
Features
1. Voltage Range: Operates over a wide input voltage range, typically from 2V to 18V, making it versatile for various power supply configurations.
2. Efficiency: Provides high efficiency with low power consumption, making it suitable for battery-powered applications.
3. Output Current: Delivers moderate output current, generally in the tens of milliamps range, sufficient for many low-to-moderate power applications.
4. Operating Frequency: Operates at a fixed frequency, which helps reduce output noise and allows for predictable performance in design.
5. Compact Package: Available in an 8-pin SOIC package (hence the "S8" in the part number), facilitating easy integration into space-constrained designs.
6. Thermal Protection: Includes built-in thermal shutdown to prevent damage from overheating.
7. Easy Implementation: Requires minimal external components, simplifying circuit design and reducing overall system cost.
These features make the LTC1144CS8 suitable for use in applications like LCD biasing, operational amplifier power supplies, and other analog circuits requiring voltage conversion.
Pinout
Here is a brief description of its pin functions:
1. V+ (Pin 1): Positive supply voltage input.
2. CAP+ (Pin 2): Positive terminal of the external charge-pump capacitor.
3. GND (Pin 3): Ground pin.
4. CAP- (Pin 4): Negative terminal of the external charge-pump capacitor.
5. OUT (Pin 5): Output voltage pin.
6. LV (Pin 6): Low voltage operation pin, used to optimize performance at low supply voltages.
7. FB (Pin 7): Feedback pin, used in voltage regulation configurations.
8. NC (Pin 8): No connection; typically not used.
The LTC1144 is commonly used in applications where negative or doubled voltages are needed, such as in generating a negative supply voltage from a positive input or boosting a low voltage to a higher level.
Manufacturer
In 2017, Linear Technology was acquired by Analog Devices, Inc., a leading company in the field of analog, mixed-signal, and digital signal processing technology. Analog Devices provides innovative solutions that bridge the physical and digital worlds, enabling advancements in areas like communications, healthcare, automotive, and industrial automation. The acquisition expanded Analog Devices' portfolio, reinforcing its position as a prominent player in the analog technology sector.
Application
1. Voltage Inverters: Converting a positive voltage to a negative voltage for powering analog circuits, operational amplifiers, or other components needing a negative supply.
2. Voltage Doublers: Doubling the input voltage to power components requiring higher voltage levels than supplied by the battery or input source.
3. Battery-Powered Devices: Used in portable electronics where efficient power conversion is crucial.
4. Biasing Applications: Providing necessary bias voltages in communication devices and sensor interfaces.
5. Mixed-Signal Systems: Supplying various voltage levels in systems integrating both digital and analog components.