Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Bulk,Tube |
| Series | SIMPLE SWITCHER® |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4V |
| Voltage-Input(Max) | 36V |
| Voltage-Output(Min/Fixed) | 1V |
| Voltage-Output(Max) | 28V |
| Current-Output | 3A |
| Frequency-Switching | 400kHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
Tổng quan
Description
The LMR23630AFDDA is a high-efficiency, step-down DC-DC converter from Texas Instruments. It is designed to provide a simple, compact solution for converting higher input voltages to lower output voltages in a variety of applications. Key features include a wide input voltage range (from 4 V to 36 V), a fixed output current capability of 3 A, and a switching frequency of 2.1 MHz, which enables the use of smaller inductors and capacitors, reducing overall solution size.
The device integrates a high-side MOSFET and supports Pulse Frequency Modulation (PFM) mode for higher efficiency at light loads, along with Pulse Width Modulation (PWM) mode under heavier loads. It also includes features such as internal compensation, soft-start, and protection mechanisms like cycle-by-cycle current limit and thermal shutdown to ensure reliable operation.
The LMR23630AFDDA is suitable for applications like industrial power systems, automotive electronics, and general-purpose point-of-load conversions. It is available in a thermally enhanced 8-pin SO PowerPAD package, facilitating better heat dissipation.
The device integrates a high-side MOSFET and supports Pulse Frequency Modulation (PFM) mode for higher efficiency at light loads, along with Pulse Width Modulation (PWM) mode under heavier loads. It also includes features such as internal compensation, soft-start, and protection mechanisms like cycle-by-cycle current limit and thermal shutdown to ensure reliable operation.
The LMR23630AFDDA is suitable for applications like industrial power systems, automotive electronics, and general-purpose point-of-load conversions. It is available in a thermally enhanced 8-pin SO PowerPAD package, facilitating better heat dissipation.
Equivalent
The LMR23630AFDDA is a step-down DC-DC converter from Texas Instruments. Equivalent products include:
1. LMR33630 series from Texas Instruments.
2. MP2459 from MPS (Monolithic Power Systems).
3. RT7272A from Richtek.
4. LT8609 from Analog Devices (formerly Linear Technology).
These alternatives offer similar functionalities like input voltage range, output current, and efficiency, but always check the specific datasheets for exact specifications and compatibility.
1. LMR33630 series from Texas Instruments.
2. MP2459 from MPS (Monolithic Power Systems).
3. RT7272A from Richtek.
4. LT8609 from Analog Devices (formerly Linear Technology).
These alternatives offer similar functionalities like input voltage range, output current, and efficiency, but always check the specific datasheets for exact specifications and compatibility.
Features
The LMR23630AFDDA is a step-down voltage regulator designed by Texas Instruments. Key features include:
1. Wide Input Voltage Range: It operates with an input range from 4 V to 36 V, making it suitable for a variety of applications including industrial and automotive systems.
2. Output Current: It can deliver up to 3 A of continuous output current, meeting the demands of high-power applications.
3. Efficiency: Offers high efficiency across loads due to its synchronous rectification and low RDS(ON) MOSFETs, which reduce power losses.
4. Switching Frequency: Operates at a fixed frequency of 400 kHz, balancing efficiency and size of external components.
5. Low Quiescent Current: Features a low quiescent current, enhancing battery life in portable applications.
6. Protection Features: Includes protection features like thermal shutdown, cycle-by-cycle current limit, and output short protection to ensure reliability.
7. Compact Package: Available in a thermally efficient 8-pin SO PowerPAD package, facilitating thermal management and space-saving design.
These features make the LMR23630AFDDA suitable for power management in various applications requiring efficient step-down conversion.
1. Wide Input Voltage Range: It operates with an input range from 4 V to 36 V, making it suitable for a variety of applications including industrial and automotive systems.
2. Output Current: It can deliver up to 3 A of continuous output current, meeting the demands of high-power applications.
3. Efficiency: Offers high efficiency across loads due to its synchronous rectification and low RDS(ON) MOSFETs, which reduce power losses.
4. Switching Frequency: Operates at a fixed frequency of 400 kHz, balancing efficiency and size of external components.
5. Low Quiescent Current: Features a low quiescent current, enhancing battery life in portable applications.
6. Protection Features: Includes protection features like thermal shutdown, cycle-by-cycle current limit, and output short protection to ensure reliability.
7. Compact Package: Available in a thermally efficient 8-pin SO PowerPAD package, facilitating thermal management and space-saving design.
These features make the LMR23630AFDDA suitable for power management in various applications requiring efficient step-down conversion.
Pinout
The LMR23630AFDDA is a step-down (buck) DC-DC converter from Texas Instruments. It comes in an 8-pin HSOIC package. Here is a brief overview of its pin functions:
1. VIN: Supply voltage input.
2. SW: Switch node; connected to the inductor.
3. BOOT: Bootstrap capacitor connection for high-side driver.
4. GND: Ground connection.
5. FB: Feedback input; used to set output voltage.
6. RT/CLK: Resistor timing or external clock input for setting the switching frequency.
7. EN: Enable pin to turn the regulator on or off.
8. VCC: Internal supply rail for the device; requires a capacitor.
These pins provide essential functions for regulating and converting input voltage to a lower, stable output voltage suitable for various applications.
1. VIN: Supply voltage input.
2. SW: Switch node; connected to the inductor.
3. BOOT: Bootstrap capacitor connection for high-side driver.
4. GND: Ground connection.
5. FB: Feedback input; used to set output voltage.
6. RT/CLK: Resistor timing or external clock input for setting the switching frequency.
7. EN: Enable pin to turn the regulator on or off.
8. VCC: Internal supply rail for the device; requires a capacitor.
These pins provide essential functions for regulating and converting input voltage to a lower, stable output voltage suitable for various applications.
Manufacturer
The LMR23630AFDDA is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of analog and embedded processing chips. These components are used in electronic products across various industries, including automotive, industrial, consumer electronics, and communications equipment. TI is known for its innovation and contributions to the development of technology solutions that enhance the performance and efficiency of electronic devices. The company is headquartered in Dallas, Texas, and has a strong presence in the global semiconductor market.
Application
The LMR23630AFDDA is a DC-DC step-down (buck) converter designed for efficient power management in various applications. Key application areas include:
1. Industrial Power Systems: Used in applications requiring reliable voltage regulation under harsh conditions.
2. Automotive Electronics: Supports automotive systems by providing stable power to electronic control units.
3. Telecommunications: Ensures efficient power conversion in networking and communication devices.
4. Consumer Electronics: Powers devices like televisions, gaming consoles, and home appliances.
5. Embedded Systems: Integrated into microcontroller-based systems for efficient power supply.
These applications benefit from the converter's compact size, high efficiency, and wide input voltage range.
1. Industrial Power Systems: Used in applications requiring reliable voltage regulation under harsh conditions.
2. Automotive Electronics: Supports automotive systems by providing stable power to electronic control units.
3. Telecommunications: Ensures efficient power conversion in networking and communication devices.
4. Consumer Electronics: Powers devices like televisions, gaming consoles, and home appliances.
5. Embedded Systems: Integrated into microcontroller-based systems for efficient power supply.
These applications benefit from the converter's compact size, high efficiency, and wide input voltage range.
Package
The LMR23630AFDDA is packaged in an 8-pin PowerPAD® SOIC (Small Outline Integrated Circuit) package, which provides enhanced thermal performance due to the exposed pad. This package type is ideal for efficient heat dissipation in compact electronic designs.
