仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Obsolete |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 6V |
| Voltage - Input (Max) | 42V |
| Voltage - Output (Min/Fixed) | 2.5V |
| Voltage - Output (Max) | 37V |
| Current - Output | 1A |
| Frequency - Switching | 100kHz ~ 1MHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
概要
Description
The LM25010MHX is a buck regulator integrated circuit (IC) designed by Texas Instruments. It belongs to the SIMPLE SWITCHER® family, notable for its easy-to-use, high-performance solutions. This specific IC is optimized for applications requiring efficient step-down (buck) conversion from a higher input voltage to a lower output voltage, handling input voltages up to 42V. The device supports output currents up to 1A, making it suitable for a range of power management applications in various electronics, including industrial, automotive, and communication systems.
The LM25010MHX features a fixed switching frequency of 1.3 MHz, enabling a compact design with minimal external components. It integrates a high-side N-channel MOSFET, reducing the need for external FETs and simplifying the overall design. Key features include cycle-by-cycle current limiting, thermal shutdown protection, and an adjustable output voltage. Its current-mode control architecture ensures excellent line and load regulation. The IC is housed in a thermally enhanced, 8-pin SO PowerPAD™ package, which improves heat dissipation, thereby enhancing reliability and performance.
The LM25010MHX features a fixed switching frequency of 1.3 MHz, enabling a compact design with minimal external components. It integrates a high-side N-channel MOSFET, reducing the need for external FETs and simplifying the overall design. Key features include cycle-by-cycle current limiting, thermal shutdown protection, and an adjustable output voltage. Its current-mode control architecture ensures excellent line and load regulation. The IC is housed in a thermally enhanced, 8-pin SO PowerPAD™ package, which improves heat dissipation, thereby enhancing reliability and performance.
Equivalent
The LM25010MHX is a non-synchronous step-down buck regulator. Equivalent products with similar functionality from other manufacturers may include:
1. TI's LM2675 - another step-down regulator with similar features.
2. ON Semiconductor's NCP1014 - offers similar voltage regulation.
3. Microchip's MCP16301 - compact, high-efficiency buck converter.
4. Analog Devices' ADP2300 - step-down regulator with comparable specs.
Always verify specific requirements like input/output voltage, current ratings, and package type when selecting alternatives.
1. TI's LM2675 - another step-down regulator with similar features.
2. ON Semiconductor's NCP1014 - offers similar voltage regulation.
3. Microchip's MCP16301 - compact, high-efficiency buck converter.
4. Analog Devices' ADP2300 - step-down regulator with comparable specs.
Always verify specific requirements like input/output voltage, current ratings, and package type when selecting alternatives.
Features
The LM25010MHX is a DC-DC buck regulator from Texas Instruments, designed to provide efficient step-down voltage conversion. Key features include:
1. Wide Input Voltage Range: It can operate from 6 V to 42 V, making it suitable for various applications.
2. Adjustable Output Voltage: The output voltage can be adjusted using an external resistor divider.
3. High Efficiency: The device is optimized for high efficiency at light and heavy loads, minimizing power loss.
4. Switching Frequency: It features a fixed switching frequency of 1 MHz, allowing for small external components and compact design.
5. Current Mode Control: This ensures fast transient response and easy loop compensation.
6. Integrated Power MOSFET: The internal 45 V N-channel MOSFET minimizes the need for external components.
7. Protection Features: It includes cycle-by-cycle current limiting and thermal shutdown to protect the device from damage.
8. Low Shutdown Current: The device has a low shutdown current, conserving power when not in use.
9. Package: It comes in a thermally-enhanced, space-saving HTSSOP package.
These features make the LM25010MHX suitable for industrial, automotive, and communications applications requiring efficient power management.
1. Wide Input Voltage Range: It can operate from 6 V to 42 V, making it suitable for various applications.
2. Adjustable Output Voltage: The output voltage can be adjusted using an external resistor divider.
3. High Efficiency: The device is optimized for high efficiency at light and heavy loads, minimizing power loss.
4. Switching Frequency: It features a fixed switching frequency of 1 MHz, allowing for small external components and compact design.
5. Current Mode Control: This ensures fast transient response and easy loop compensation.
6. Integrated Power MOSFET: The internal 45 V N-channel MOSFET minimizes the need for external components.
7. Protection Features: It includes cycle-by-cycle current limiting and thermal shutdown to protect the device from damage.
8. Low Shutdown Current: The device has a low shutdown current, conserving power when not in use.
9. Package: It comes in a thermally-enhanced, space-saving HTSSOP package.
These features make the LM25010MHX suitable for industrial, automotive, and communications applications requiring efficient power management.
Pinout
The LM25010MHX is a high-efficiency, 42V, 2.5A synchronous buck regulator. It is typically housed in a 10-pin PowerPAD™ MSOP package. The pin count and functions for the LM25010MHX are as follows:
1. VIN: Input voltage supply.
2. SW: Switching node, connected to the output inductor.
3. BOOT: Bootstrap capacitor connection for high-side driver.
4. VCC: Internal LDO output, typically used to power internal control circuits.
5. FB: Feedback pin for output voltage regulation.
6. COMP: Compensation pin for loop stability.
7. RT/SD: Resistor timing and shutdown pin.
8. EN: Enable pin to control device operation.
9. GND: Ground connection.
10. EP (Exposed Pad): Thermal pad to be soldered to the PCB for better heat dissipation.
This device is used in various applications requiring efficient voltage conversion with a compact footprint.
1. VIN: Input voltage supply.
2. SW: Switching node, connected to the output inductor.
3. BOOT: Bootstrap capacitor connection for high-side driver.
4. VCC: Internal LDO output, typically used to power internal control circuits.
5. FB: Feedback pin for output voltage regulation.
6. COMP: Compensation pin for loop stability.
7. RT/SD: Resistor timing and shutdown pin.
8. EN: Enable pin to control device operation.
9. GND: Ground connection.
10. EP (Exposed Pad): Thermal pad to be soldered to the PCB for better heat dissipation.
This device is used in various applications requiring efficient voltage conversion with a compact footprint.
Manufacturer
The LM25010MHX is manufactured by Texas Instruments. Texas Instruments, commonly known as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. It is one of the largest semiconductor companies in the world and is well-known for its development, innovation, and production of analog chips and embedded processors, which are used in a wide array of electronic devices. TI's products serve a diverse range of industries, including consumer electronics, automotive, industrial, and communications equipment. The company is headquartered in Dallas, Texas, and has a global presence with manufacturing and design operations around the world.
Application
The LM25010MHX is a high-voltage, low-dropout linear regulator often used in applications requiring efficient power conversion and regulation. Key application areas include:
1. Industrial Power Supplies: Ideal for regulating power in industrial control systems and equipment.
2. Telecommunications: Used in telecom base stations and networking equipment where stable power is crucial.
3. Automotive Electronics: Suitable for automotive systems requiring robust and reliable voltage regulation.
4. Consumer Electronics: Employed in devices such as set-top boxes and LED drivers.
5. Distributed Power Systems: Utilized in systems requiring point-of-load regulation.
Its efficiency, broad input voltage range, and high-load current capability make it suitable for various demanding environments.
1. Industrial Power Supplies: Ideal for regulating power in industrial control systems and equipment.
2. Telecommunications: Used in telecom base stations and networking equipment where stable power is crucial.
3. Automotive Electronics: Suitable for automotive systems requiring robust and reliable voltage regulation.
4. Consumer Electronics: Employed in devices such as set-top boxes and LED drivers.
5. Distributed Power Systems: Utilized in systems requiring point-of-load regulation.
Its efficiency, broad input voltage range, and high-load current capability make it suitable for various demanding environments.
Package
The LM25010MHX is a buck regulator IC manufactured by Texas Instruments. It comes in a 10-pin, thermally enhanced, PowerPAD™ MSOP (Mini Small Outline Package) package, which is designated by the "MHX" in the part number. This package is designed for efficient thermal performance and occupies a small footprint, suitable for space-constrained applications.
