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LM5009ASDX
+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 #LM5009ASDX
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概述
Description
Key features of the LM5009ASDX include a 150 mA output current capability, a fixed switching frequency, and internal compensation, which simplifies the design process by reducing the number of external components required. The regulator includes protection features such as thermal shutdown, current limit, and under-voltage lockout to enhance reliability and safety.
Its compact size and efficiency make it ideal for use in industrial, automotive, and other high-voltage applications where space and power efficiency are critical. The device is available in a thermally enhanced SOIC-8 package, allowing for effective heat dissipation.
Equivalent
1. Texas Instruments: LM5009, LM5017
2. Analog Devices: LT3991, LT8610
3. Microchip Technology: MCP16301
4. ON Semiconductor: NCP3170
These alternatives have similar functionalities but may differ in specifications such as input voltage range, output current, and features. Always verify compatibility with your specific application requirements.
Features
Key features include:
- Integrated N-Channel MOSFET for high-efficiency and compact design.
- Constant on-time control for fast transient response and simple loop design.
- Adjustable output voltage and current limit via external resistors.
- Sleep mode with low quiescent current for improved efficiency at light loads.
- Built-in thermal shutdown and current limit protection for enhanced reliability.
- Frequency adjustable through an external resistor for flexibility in noise-sensitive applications.
The LM5009ASDX is available in a thermally-enhanced, surface-mount package, making it suitable for compact system designs. Its robust feature set supports efficient power management in a variety of high-voltage environments.
Pinout
1. SW (Switch Output): Connects to the inductor and serves as the switching node.
2. BST (Bootstrap): Provides a bootstrap voltage for the high-side driver.
3. VIN (Input Voltage): Supplies input voltage to the regulator, handling up to 95V.
4. R (Regulation Setting): Used to set the output voltage and switch frequency.
5. GND (Ground): Ground reference for the circuit.
6. VCC (Internal Regulator Output): Provides power for internal circuitry and can be used to supply the IC's internal LDO.
This regulator is suitable for applications needing a compact high-voltage converter, offering efficiency and ease of use with minimal external components.