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LT8612IUDE
IC REG BUCK ADJUSTABLE 6A 28QFN
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- 製造商。 部分 #LT8612IUDE
- 包 28-WFQFNExposedPad
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規格
| Package | Tube |
| ProductStatus | Obsolete |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 3.4V |
| Voltage-Input(Max) | 42V |
| Voltage-Output(Min/Fixed) | 0.97V |
| Voltage-Output(Max) | 41.6V |
| Current-Output | 6A |
| Frequency-Switching | 200kHz ~ 2.2MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 28-WFQFN Exposed Pad |
概述
Description
The LT8612IUDE is a high-efficiency, monolithic step-down switching regulator produced by Analog Devices (formerly Linear Technology). This device is designed to convert a higher DC voltage to a lower DC voltage with minimal power loss. Key features include its ability to deliver up to 5A of continuous output current and operate within an input voltage range of 3.4V to 42V, making it suitable for a wide range of applications, including automotive, industrial, and communication systems.
The LT8612IUDE offers a high switching frequency of up to 2.2MHz, allowing the use of smaller external components and enabling a compact design. It also features low quiescent current (as low as 2.5µA during no-load operation), enhancing battery life in portable applications. Other notable features include fast transient response, a programmable undervoltage lockout (UVLO), and a precision enable circuit. Its efficiency, combined with its small size and thermal performance, makes it ideal for modern electronic systems requiring compact and reliable power management solutions.
The LT8612IUDE offers a high switching frequency of up to 2.2MHz, allowing the use of smaller external components and enabling a compact design. It also features low quiescent current (as low as 2.5µA during no-load operation), enhancing battery life in portable applications. Other notable features include fast transient response, a programmable undervoltage lockout (UVLO), and a precision enable circuit. Its efficiency, combined with its small size and thermal performance, makes it ideal for modern electronic systems requiring compact and reliable power management solutions.
Features
The LT8612IUDE is a high-performance, synchronous step-down switching regulator. Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 3.4V to 42V, making it suitable for various applications.
2. Output Current: The regulator can deliver up to 3.5A of continuous output current.
3. Efficiency: It offers high efficiency at up to 96% due to its synchronous rectification design, which helps minimize heat generation.
4. Switching Frequency: The device supports a programmable switching frequency, adjustable from 200kHz to 2.2MHz, allowing for optimization between efficiency and component size.
5. Low Quiescent Current: It features low quiescent current operation, typically around 2.5µA, which is beneficial for battery-powered applications.
6. Burst Mode Operation: This mode helps improve efficiency at light loads.
7. Protection Features: The LT8612IUDE includes robust protection features such as short-circuit protection, thermal shutdown, and undervoltage lockout.
8. Package: It is available in a compact 28-lead QFN package, optimizing space for board design.
These features make the LT8612IUDE suitable for automotive, industrial, and general-purpose power supply applications.
1. Input Voltage Range: It supports a wide input voltage range from 3.4V to 42V, making it suitable for various applications.
2. Output Current: The regulator can deliver up to 3.5A of continuous output current.
3. Efficiency: It offers high efficiency at up to 96% due to its synchronous rectification design, which helps minimize heat generation.
4. Switching Frequency: The device supports a programmable switching frequency, adjustable from 200kHz to 2.2MHz, allowing for optimization between efficiency and component size.
5. Low Quiescent Current: It features low quiescent current operation, typically around 2.5µA, which is beneficial for battery-powered applications.
6. Burst Mode Operation: This mode helps improve efficiency at light loads.
7. Protection Features: The LT8612IUDE includes robust protection features such as short-circuit protection, thermal shutdown, and undervoltage lockout.
8. Package: It is available in a compact 28-lead QFN package, optimizing space for board design.
These features make the LT8612IUDE suitable for automotive, industrial, and general-purpose power supply applications.
Package
The LT8612IUDE is an electronic component in a 32-lead 5mm x 5mm QFN (Quad Flat No-leads) package. This type of packaging is compact and suitable for surface-mount applications, providing efficient thermal performance and a small footprint for high-density circuit designs.
Pinout
The LT8612IUDE is a high-efficiency monolithic step-down regulator from Analog Devices. It is packaged in a 16-lead 3mm × 3mm DFN (Dual Flat No-leads) package. The device features 16 pins, each with specific functions, including:
1. VIN: Supply voltage input.
2. SW: Switch node.
3. BST: Bootstrapped capacitor connection for high-side MOSFET driver.
4. PG: Power good indicator.
5. SYNC: Synchronization input for an external clock.
6. RT: Timing resistor to set the switching frequency.
7. SS: Soft-start control.
8. GND: Ground.
9. VOUT: Output voltage.
10. FB: Feedback input for output voltage regulation.
11. TR/SS: Tracking and soft-start pin.
12. EN: Enable pin to turn the regulator on or off.
13. BIAS: Bias pin for internal circuitry.
14. PGOOD: Power good output.
15. INTVCC: Internal regulator output for powering internal circuitry.
16. EXPOSED PAD: Should be soldered to a large copper plane for thermal performance.
These pins facilitate the main functions of power regulation, including input voltage, output voltage control, switching, synchronization, and power good indication.
1. VIN: Supply voltage input.
2. SW: Switch node.
3. BST: Bootstrapped capacitor connection for high-side MOSFET driver.
4. PG: Power good indicator.
5. SYNC: Synchronization input for an external clock.
6. RT: Timing resistor to set the switching frequency.
7. SS: Soft-start control.
8. GND: Ground.
9. VOUT: Output voltage.
10. FB: Feedback input for output voltage regulation.
11. TR/SS: Tracking and soft-start pin.
12. EN: Enable pin to turn the regulator on or off.
13. BIAS: Bias pin for internal circuitry.
14. PGOOD: Power good output.
15. INTVCC: Internal regulator output for powering internal circuitry.
16. EXPOSED PAD: Should be soldered to a large copper plane for thermal performance.
These pins facilitate the main functions of power regulation, including input voltage, output voltage control, switching, synchronization, and power good indication.
Manufacturer
The LT8612IUDE is manufactured by Analog Devices, Inc. This company is a multinational semiconductor company known for designing and manufacturing a wide range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices serves various industries, including telecommunications, automotive, healthcare, and industrial automation, offering solutions that enhance the performance, precision, and reliability of electronic systems.
Application
The LT8612IUDE is a high-efficiency, synchronous step-down regulator. Its applications include automotive systems, industrial power supplies, telecom power supplies, and distributed power systems. It is ideal for use in systems requiring compact, efficient power conversion from a higher voltage input to lower voltage outputs. The device's features, such as fast transient response, low quiescent current, and high-frequency operation, make it suitable for applications demanding precise voltage regulation and compact design.
Equivalent
The LT8612IUDE is a high-efficiency, monolithic step-down switching regulator. Equivalent products include:
1. Texas Instruments TPS54340: A 42V, 3.5A step-down converter.
2. Microchip Technology MIC28512: A 75V, 5A synchronous buck regulator.
3. Maxim Integrated MAX17502: A 60V, 3.5A high-efficiency, synchronous step-down converter.
4. Diodes Incorporated AP64350Q: A 40V, 3.5A synchronous buck converter.
Ensure compatibility with your specific application by checking the datasheets for features such as input voltage range, output current, and efficiency.
1. Texas Instruments TPS54340: A 42V, 3.5A step-down converter.
2. Microchip Technology MIC28512: A 75V, 5A synchronous buck regulator.
3. Maxim Integrated MAX17502: A 60V, 3.5A high-efficiency, synchronous step-down converter.
4. Diodes Incorporated AP64350Q: A 40V, 3.5A synchronous buck converter.
Ensure compatibility with your specific application by checking the datasheets for features such as input voltage range, output current, and efficiency.
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