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LM7705MM
+物料清單Switching Voltage Regulators
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製造商德州儀器
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製造商部分 #LM7705MM
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有存貨19416
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概述
Description
This IC is known for its low power consumption and efficiency, making it suitable for battery-powered systems. It features thermal shutdown protection and under-voltage lockout for enhanced reliability. The LM7705MM comes in a small MSOP-8 package, which is ideal for space-constrained applications.
The device is especially beneficial in sensor applications, data acquisition systems, and any other circuit where extending the output or input signal range of an op-amp is required. By enabling op-amps to operate closer to the ground, the LM7705MM enhances performance in precision analog circuits.
Equivalent
1. MAX6032 from Maxim Integrated, offering a similar function in creating a negative voltage.
2. LTC1983 from Analog Devices, which provides a compact negative voltage solution.
3. ADM8828 from Analog Devices, suitable for low-power applications requiring negative voltage.
4. TPS60400 from Texas Instruments, which can serve as a charge pump inverter for similar uses.
Ensure compatibility with your specific application requirements, such as voltage and current ratings.
Features
1. Output Voltage: It produces a fixed negative output voltage of -0.23V, which is ideal for biasing the ground rail of single-supply op-amps and ensuring accurate operation when inputs are near ground.
2. Input Voltage Range: The device operates with an input voltage range from 2.7V to 5.5V, making it suitable for low-voltage applications.
3. Low Noise: It features low noise performance, which is crucial for precision analog circuits.
4. Compact Package: Available in a small SOT-23 package, the LM7705MM is suitable for space-constrained applications.
5. High Efficiency: The device offers high efficiency, complementing battery-powered applications by extending battery life.
6. Thermal and Current Protection: It includes built-in thermal and current limit protection, enhancing reliability and robustness.
These features make the LM7705MM a versatile component for enhancing the performance of analog and mixed-signal systems requiring a negative voltage rail.
Pinout
1. VDD (Pin 1): Supply voltage input.
2. CAP+ (Pin 2): Positive connection for the charge pump capacitor.
3. CAP- (Pin 3): Negative connection for the charge pump capacitor.
4. GND (Pin 4): Ground connection.
5. OUT (Pin 5): Output voltage, which is typically -0.23V below ground.
6. SD (Pin 6): Shutdown pin; when low, the device is in shutdown mode.
7. VFB (Pin 7): Feedback input for the inverting regulator.
8. NC (Pin 8): No internal connection.
The LM7705MM is used to provide a negative offset to ground-referenced components, improving their performance by allowing true zero output voltage operation in single-supply applications.
Manufacturer
Application
1. Operational Amplifiers: Enhances the dynamic range by allowing the output to swing closer to zero volts.
2. Data Acquisition Systems: Ensures accurate signal processing by maintaining stable reference voltages.
3. Sensor Interfaces: Improves sensitivity and accuracy in interfacing with various sensors.
4. Industrial Instrumentation: Provides precise voltage levels for measurement and control applications.
5. Portable and Battery-Powered Devices: Offers efficient power management solutions.
These applications benefit from the LM7705MM's ability to deliver a regulated, low-noise negative supply voltage.