圖片僅供參考
規格
| 屬性 | 價值 |
| Brand | Texas Instruments |
| ProductType | Switching Voltage Regulators |
| Subcategory | PMIC - Power Management ICs |
| MountingStyle | SMD/SMT |
| Package/Case | WSON-8 |
| MinimumOperatingTemperature | - 40 C |
| MaximumOperatingTemperature | + 125 C |
| Height | 0.8 mm |
| Length | 4 mm |
| Width | 4 mm |
| UnitWeight | 0.000384 oz |
| Topology | Buck |
| OutputVoltage | 2.5 V to 85 V |
| OutputCurrent | 150 mA |
| NumberofOutputs | 1 Output |
| InputVoltage-Min | 9.5 V |
| InputVoltage-Max | 95 V |
| SwitchingFrequency | 600 kHz |
| Type | Step Down |
概述
Description
The LM5009ASD is a high-voltage step-down voltage regulator designed for applications requiring efficient power conversion. It features a wide input voltage range, typically from 4.5V up to 65V, making it suitable for various industrial and automotive applications. The regulator provides adjustable output voltage with a high efficiency of up to 95%, which helps minimize heat generation.
Key features of the LM5009ASD include a built-in high-side power switch, programmable frequency, and the ability to operate in pulse-width modulation (PWM) mode for better performance under varying load conditions. It also incorporates protection features such as thermal shutdown and cycle-by-cycle current limiting, enhancing overall reliability.
The device is available in an easy-to-use package, making it accessible for both experienced designers and those new to power management solutions. This regulator is ideal for powering microcontrollers, sensors, and other devices in battery-operated or high-voltage environments.
Key features of the LM5009ASD include a built-in high-side power switch, programmable frequency, and the ability to operate in pulse-width modulation (PWM) mode for better performance under varying load conditions. It also incorporates protection features such as thermal shutdown and cycle-by-cycle current limiting, enhancing overall reliability.
The device is available in an easy-to-use package, making it accessible for both experienced designers and those new to power management solutions. This regulator is ideal for powering microcontrollers, sensors, and other devices in battery-operated or high-voltage environments.
Equivalent
The LM5009ASD is a high-voltage, step-down voltage regulator. Equivalent products include the LM2596, LM2675, and TPS54331, which also provide step-down functionality. Additionally, the LT1083 and MIC2940 can serve similar purposes in specific applications. Always verify specifications and applications to ensure compatibility in your design.
Features
The LM5009ASD is a high-voltage, step-down (buck) regulator designed for a wide input voltage range. Key features include:
1. Input Voltage Range: Supports 4.5V to 75V, making it suitable for various applications.
2. Output Voltage: Adjustable output voltage down to 1.2V, allowing flexibility in design.
3. High Efficiency: Offers high efficiency for improved thermal performance and reduced power loss.
4. Current Limit: Integrated current-limit protection to prevent damage under overload conditions.
5. PWM Control: Utilizes pulse-width modulation (PWM) for stable operation across different loads.
6. Integrated Switching FETs: Reduces component count and simplifies the design.
7. Frequency: Operates at adjustable switching frequencies, enhancing design flexibility.
8. Thermal Shutdown: Provides protection against overheating.
9. Compact Package: Available in a small, thermally efficient package for space-constrained applications.
These features make the LM5009ASD suitable for various applications, including industrial, automotive, and telecommunications.
1. Input Voltage Range: Supports 4.5V to 75V, making it suitable for various applications.
2. Output Voltage: Adjustable output voltage down to 1.2V, allowing flexibility in design.
3. High Efficiency: Offers high efficiency for improved thermal performance and reduced power loss.
4. Current Limit: Integrated current-limit protection to prevent damage under overload conditions.
5. PWM Control: Utilizes pulse-width modulation (PWM) for stable operation across different loads.
6. Integrated Switching FETs: Reduces component count and simplifies the design.
7. Frequency: Operates at adjustable switching frequencies, enhancing design flexibility.
8. Thermal Shutdown: Provides protection against overheating.
9. Compact Package: Available in a small, thermally efficient package for space-constrained applications.
These features make the LM5009ASD suitable for various applications, including industrial, automotive, and telecommunications.
Pinout
The LM5009ASD is a high-voltage, step-down (buck) switching regulator from Texas Instruments. It typically comes in a 10-pin MSOP (MSOP-10) package.
Pin Count: 10 pins
Functions of the Pins:
1. VIN (Pin 1): Input voltage supply.
2. SW (Pin 2): Switching output node.
3. GND (Pin 3): Ground reference.
4. COMP (Pin 4): Compensation pin for the control loop.
5. FB (Pin 5): Feedback voltage sensing pin.
6. RCS (Pin 6): Current sense resistor connection.
7. CSN (Pin 7): Current sense negative input.
8. CSO (Pin 8): Current sense positive input.
9. RT (Pin 9): Timing resistor connection for frequency setting.
10. SS (Pin 10): Soft-start control for output voltage ramp-up.
The LM5009ASD is designed for applications requiring high efficiency in power regulation.
Pin Count: 10 pins
Functions of the Pins:
1. VIN (Pin 1): Input voltage supply.
2. SW (Pin 2): Switching output node.
3. GND (Pin 3): Ground reference.
4. COMP (Pin 4): Compensation pin for the control loop.
5. FB (Pin 5): Feedback voltage sensing pin.
6. RCS (Pin 6): Current sense resistor connection.
7. CSN (Pin 7): Current sense negative input.
8. CSO (Pin 8): Current sense positive input.
9. RT (Pin 9): Timing resistor connection for frequency setting.
10. SS (Pin 10): Soft-start control for output voltage ramp-up.
The LM5009ASD is designed for applications requiring high efficiency in power regulation.
Manufacturer
The LM5009ASD is manufactured by Texas Instruments (TI), a prominent American technology company. Founded in 1930, Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits. They are particularly well-known for their analog and embedded processing products. TI serves a wide range of industries, including automotive, industrial, communications, and consumer electronics. The LM5009ASD is a voltage regulator that provides a highly efficient solution for power management applications, showcasing TI's commitment to innovation and reliable performance in electronic components.
Application
The LM5009ASD is a high-voltage, step-down switching regulator primarily used in various applications, including:
1. Power Supply for Industrial Equipment: Provides regulated power for control circuits and sensors.
2. Telecommunication Equipment: Supplies power to base stations and communication devices.
3. LED Drivers: Efficiently powers LED lighting systems.
4. Automotive Applications: Used in automotive power systems for electronic control units (ECUs).
5. Consumer Electronics: Powers devices requiring efficient voltage regulation.
6. Battery Management Systems: Regulates output voltage for charging and discharging processes.
Its versatility makes it suitable for a wide range of high-voltage applications.
1. Power Supply for Industrial Equipment: Provides regulated power for control circuits and sensors.
2. Telecommunication Equipment: Supplies power to base stations and communication devices.
3. LED Drivers: Efficiently powers LED lighting systems.
4. Automotive Applications: Used in automotive power systems for electronic control units (ECUs).
5. Consumer Electronics: Powers devices requiring efficient voltage regulation.
6. Battery Management Systems: Regulates output voltage for charging and discharging processes.
Its versatility makes it suitable for a wide range of high-voltage applications.
Package
The LM5009ASD is available in a 16-pin HTSSOP (Thin Shrink Small Outline Package) package type, which is designed for efficient thermal performance and space-saving in circuit designs.