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LM5009AMMX
+Lista de MateriaisSwitching Voltage Regulators
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FabricanteTexas Instruments
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Peça do Fabricante #LM5009AMMX
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Especificações
| Atributo | Valor |
Visão Geral
Description
Key features of the LM5009AMMX include:
- An input voltage range of up to 95 volts, making it suitable for industrial and automotive applications.
- A fixed 100 kHz switching frequency.
- A maximum output current of approximately 150 mA.
- Integrated high-side N-channel MOSFET.
- Thermal shutdown and internal current limiting for enhanced reliability.
- Feedback voltage accuracy of ±1.5%.
The device is housed in a compact 8-pin VSSOP package, making it suitable for space-constrained designs. Its wide input voltage range and robust design features allow it to be used in a variety of applications, including battery-powered systems, distributed power systems, and other areas requiring efficient voltage reduction.
Equivalent
1. Texas Instruments LM5009MM – Same family, non-A version
2. Texas Instruments LM5010 – Higher current capability
3. Analog Devices LTC3631 – Similar functionality
4. Microchip MIC4576 – Similar voltage rating
5. ON Semiconductor NCP3065 – Comparable performance
Check for specific electrical characteristics and package compatibility when considering equivalents.
Features
1. Wide Input Voltage Range: It supports an input voltage range from 6V to 95V, making it suitable for diverse applications, including automotive, industrial, and telecom systems.
2. Output Current: Delivers up to 150 mA of output current.
3. Adjustable Output Voltage: The device allows the output voltage to be set between 2.5V and 85V using an external resistor divider.
4. High Efficiency: Operates efficiently under varying load conditions, thanks to its constant on-time control scheme.
5. Protection Features: Includes built-in features like thermal shutdown, current limiting, and under-voltage lockout for enhanced reliability.
6. Compact Package: Available in a small, thermally-enhanced SOIC-8 package, facilitating space-saving designs.
7. Low Component Count: Minimal external components are required, simplifying the design process.
8. Frequency: Features a switching frequency of up to 600 kHz, allowing for small external components and fast transient response.
These attributes make the LM5009AMMX a versatile choice for low-power, high-voltage regulation needs.
Pinout
1. SW (Switch Output): This pin is connected to the inductor, and it switches between VIN and ground.
2. BST (Bootstrap): This pin is used to provide a drive voltage, higher than the input voltage, to the high-side N-Channel MOSFET.
3. RFB (Feedback Resistor): Connects to the output voltage feedback network for setting the output voltage.
4. FB (Feedback): This pin is connected to the inverting input of the internal error amplifier.
5. RT (Timing Resistor): Sets the switching frequency through an external resistor.
6. GND (Ground): Common ground for all internal circuitry.
7. VCC (Output of the Internal Regulator): Provides a voltage supply for the internal circuit and can be used to power external circuitry.
8. VIN (Input Voltage): Supply voltage input to the regulator.
These pins work together to regulate the output voltage efficiently while minimizing external component count.
Manufacturer
Application
1. Telecom and networking equipment, where it provides reliable power conversion for circuits operating from standard telecom voltage rails.
2. Industrial automation and control systems, offering robust power solutions for equipment with high-voltage inputs.
3. Automotive systems, particularly for power management modules in vehicles.
4. White goods and home appliances, where it helps convert AC mains voltages to lower DC voltages for electronic components.
5. Distributed power systems and battery-powered systems, offering efficient step-down conversion and power management.