Imagens apenas para referência
LT3990IDD#PBF
+Lista de MateriaisIC REG BUCK ADJ 350MA 10DFN
-
FabricanteAnalog Devices Inc.
-
Peça do Fabricante #LT3990IDD#PBF
-
Em Estoque5460
365 Garantia de Qualidade em 1 dia
7*24 Garantia de serviço em 24 horas
90-Garantia de pós-venda em 1 dia
Garantia de Produto Genuíno
Especificações
| Atributo | Valor |
| PartStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.2V |
| Voltage-Input(Max) | 62V |
| Voltage-Output(Min/Fixed) | 1.21V |
| Voltage-Output(Max) | 25V |
| Current-Output | 350mA |
| Frequency-Switching | 210kHz ~ 2.3MHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 10-WFDFN Exposed Pad |
| SupplierDevicePackage | 10-DFN (3x3) |
| BaseProductNumber | LT3990 |
Visão Geral
Description
The LT3990IDD#PBF is a high-efficiency, synchronous step-down voltage regulator designed by Analog Devices, specifically for applications requiring efficient power conversion in a compact form factor. It features a wide input voltage range, enabling it to work with various power sources. The device can deliver a high output current while maintaining minimal heat generation, making it suitable for battery-powered and portable applications.
Key features include adjustable output voltage, low quiescent current, and various protection mechanisms like overcurrent and thermal shutdown. Its compact package type facilitates integration into space-constrained designs, while its high switching frequency allows for smaller external components. The LT3990 is often used in telecommunications, industrial, and consumer electronics for powering microcontrollers, sensors, and other peripherals.
Overall, the LT3990IDD#PBF provides reliable performance and efficiency for modern electronic systems.
Key features include adjustable output voltage, low quiescent current, and various protection mechanisms like overcurrent and thermal shutdown. Its compact package type facilitates integration into space-constrained designs, while its high switching frequency allows for smaller external components. The LT3990 is often used in telecommunications, industrial, and consumer electronics for powering microcontrollers, sensors, and other peripherals.
Overall, the LT3990IDD#PBF provides reliable performance and efficiency for modern electronic systems.
Equivalent
The LT3990IDD#PBF is a high-efficiency DC-DC buck converter. Equivalent products include:
1. TPS562211 from Texas Instruments
2. LM2596 from Texas Instruments
3. MP1584 from Monolithic Power Systems
4. LM2675 from Texas Instruments
Always check the specifications, such as input voltage range, output current, and efficiency, to ensure compatibility with your application.
1. TPS562211 from Texas Instruments
2. LM2596 from Texas Instruments
3. MP1584 from Monolithic Power Systems
4. LM2675 from Texas Instruments
Always check the specifications, such as input voltage range, output current, and efficiency, to ensure compatibility with your application.
Features
The LT3990IDD#PBF is a high-performance linear current regulator designed for LED driving applications. Key features include:
1. Wide Input Voltage Range: Accepts input voltages from 4.5V to 60V, accommodating various power supply configurations.
2. Constant Current Regulation: Provides precise LED current control with a typical accuracy of ±2%.
3. Adjustable Output Current: Configurable output current via an external resistor, enabling flexibility for different LED configurations.
4. Thermal Protection: Integrated thermal shutdown feature to prevent overheating and damage.
5. Low Voltage Dropout: Ensures efficient operation, maximizing LED brightness.
6. Enable Pin: Allows for easy control of the device, enabling and disabling the output current as needed.
7. Compact Package: Offered in a thermally enhanced 8-lead MSOP package, suitable for space-constrained applications.
These features make the LT3990IDD#PBF ideal for driving high-brightness LEDs in various lighting applications.
1. Wide Input Voltage Range: Accepts input voltages from 4.5V to 60V, accommodating various power supply configurations.
2. Constant Current Regulation: Provides precise LED current control with a typical accuracy of ±2%.
3. Adjustable Output Current: Configurable output current via an external resistor, enabling flexibility for different LED configurations.
4. Thermal Protection: Integrated thermal shutdown feature to prevent overheating and damage.
5. Low Voltage Dropout: Ensures efficient operation, maximizing LED brightness.
6. Enable Pin: Allows for easy control of the device, enabling and disabling the output current as needed.
7. Compact Package: Offered in a thermally enhanced 8-lead MSOP package, suitable for space-constrained applications.
These features make the LT3990IDD#PBF ideal for driving high-brightness LEDs in various lighting applications.
Pinout
The LT3990IDD#PBF is a high-efficiency, synchronous step-down DC/DC converter with a pin count of 28. It is designed to provide high output current while maintaining excellent efficiency and low output ripple.
Key functions of the pins include:
1. Power Input (VIN): Supplies power to the device.
2. Ground (GND): Common ground reference.
3. SW: Switch nodes for the internal FETs.
4. VOUT: Output voltage pin.
5. COMP: Compensation network for stability.
6. FB (Feedback): Voltage feedback for regulation.
7. SS (Soft Start): Controls the startup time.
8. EN (Enable): Enables or disables the converter.
9. SYNC: Synchronizes the switching frequency.
10. PG (Power Good): Indicates the output is within regulation.
These functions enable the LT3990 to perform efficiently in various applications, making it suitable for powering processors and other high-performance devices.
Key functions of the pins include:
1. Power Input (VIN): Supplies power to the device.
2. Ground (GND): Common ground reference.
3. SW: Switch nodes for the internal FETs.
4. VOUT: Output voltage pin.
5. COMP: Compensation network for stability.
6. FB (Feedback): Voltage feedback for regulation.
7. SS (Soft Start): Controls the startup time.
8. EN (Enable): Enables or disables the converter.
9. SYNC: Synchronizes the switching frequency.
10. PG (Power Good): Indicates the output is within regulation.
These functions enable the LT3990 to perform efficiently in various applications, making it suitable for powering processors and other high-performance devices.
Manufacturer
The LT3990IDD#PBF is manufactured by Analog Devices, Inc. Analog Devices is a global leader in the design and manufacturing of high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company serves a wide range of markets, including automotive, communications, industrial, and consumer electronics.
Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices focuses on high-quality semiconductor solutions that enable precise data conversion and signal processing. Its products are widely used in applications such as data acquisition, signal conditioning, and power management. The LT3990 is specifically a high-voltage LED driver, which illustrates the company’s strength in offering advanced analog solutions for lighting and power applications. Overall, Analog Devices is known for its innovation and technical expertise in the semiconductor industry.
Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices focuses on high-quality semiconductor solutions that enable precise data conversion and signal processing. Its products are widely used in applications such as data acquisition, signal conditioning, and power management. The LT3990 is specifically a high-voltage LED driver, which illustrates the company’s strength in offering advanced analog solutions for lighting and power applications. Overall, Analog Devices is known for its innovation and technical expertise in the semiconductor industry.
Application
The LT3990IDD#PBF is a high-efficiency step-down DC-DC converter designed for applications requiring high power density and efficiency. It is commonly used in automotive, industrial, and communication systems for powering microcontrollers, sensors, and other peripherals. Key application areas include battery-powered devices, LED drivers, point-of-load converters, and power management in portable electronics. Its ability to handle high input voltages and provide adjustable output makes it suitable for various power supply designs, including those in harsh environments.
Package
The LT3990IDD#PBF is packaged in a 16-lead TSSOP (Thin Shrink Small Outline Package) format. This type of package is designed for efficient thermal performance and space-saving in electronic applications.
