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IC REG BUCK ADJUSTABLE 4A 20QFN
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제조업체아날로그 디바이스(주)
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제조업체 부품 #LT8614EUDC#TRPBF
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패키지 QFN-18
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재고1762
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사양
| 속성 | 가치 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3.4V |
| Voltage - Input (Max) | 42V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | 30V |
| Current - Output | 4A |
| Frequency - Switching | 200kHz ~ 3MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
개요
Description
Key features include a low quiescent current of 2.5µA in Burst Mode operation, which enhances efficiency at light loads, and a fast minimum on-time of 30ns, enabling high-frequency operation with small external components. The device includes internal compensation, soft-start, and a power-good flag to ensure robust performance. It also supports operation down to 100% duty cycle for low dropout conditions.
Packaged in a compact, thermally enhanced 3mm x 3mm DFN, the LT8614EUDC#TRPBF provides a high-performance power solution with minimal footprint, making it an excellent choice for space-constrained applications.
Equivalent
1. Texas Instruments TPS54335: A 3A, 28V, synchronous step-down converter.
2. Microchip Technology MCP16331: A 3A, 30V, synchronous step-down regulator.
3. Diodes Incorporated AP63205: A 2A, 28V, synchronous buck converter.
These equivalents offer similar functionality, but always check specific requirements and datasheets to ensure compatibility.
Features
Key features include its fast minimum on-time of only 30ns, which allows for high step-down ratios even at high switching frequencies. This enables the use of smaller inductors and capacitors, reducing overall solution size. The LT8614 also offers Burst Mode operation for increased efficiency at light loads, a low dropout performance, and a low quiescent current of only 2.5µA, which is beneficial for battery-operated devices.
Additional highlights include an adjustable switching frequency (200kHz to 2.2MHz), internal compensation, soft-start capability, and robust protection features such as thermal shutdown, short-circuit protection, and overvoltage lockout. The compact 3mm x 4mm DFN package supports efficient thermal management and easy PCB layout.
Pinout
The primary function of the LT8614 is to convert a higher DC input voltage to a lower DC output voltage with high efficiency. It is capable of delivering up to 4A of continuous output current. The device operates with a wide input voltage range, from 3V to 42V, which makes it suitable for automotive, industrial, and other high-voltage applications. Features include fast transient response, low quiescent current, and integrated compensation, allowing for a compact design.