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LT8619C
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HerstellerLONTIUMSEMIKONDUKTOR
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Herstellerteil #LT8619C
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Datenblatt LT8619C DataSheet
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Auf Lager10726
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Spezifikationen
| Attribut | Wert |
| Manufacturer | LONTIUM SEMICONDUCTOR |
| Package / Case | QFN-76(9x9) |
| Voltage - Supply | 1.8V |
| Operating Temperature | -40℃~+85℃ |
| Type | Converter |
Übersicht
Description
One of the key advantages of the LT8619C is its Silent Switcher® architecture, which minimizes electromagnetic interference (EMI), making it suitable for noise-sensitive environments. It also incorporates a low dropout performance and fast transient response, enhancing efficiency and stability.
The regulator includes features like programmable undervoltage lockout, spread spectrum frequency modulation, and thermal shutdown for added reliability. Additionally, its Burst Mode® operation helps in maintaining high efficiency at light loads by reducing the quiescent current to just a few microamps.
Overall, the LT8619C is a versatile and efficient solution for powering a wide range of electronic devices in environments with stringent space and noise constraints.
Equivalent
1. Texas Instruments LM76003 - 60V, 3.5A synchronous step-down regulator.
2. Analog Devices ADP2441 - 36V, 1A, step-down regulator.
3. Microchip MCP16331 - 36V, 1A step-down regulator.
4. STMicroelectronics L6983 - 38V, 3A synchronous step-down regulator.
Specifications may vary slightly, so reviewing each datasheet for exact compatibility is recommended.
Features
1. Wide Input Voltage Range: It operates from 3.4V to 42V, making it versatile for various power sources.
2. Output Current: The device can deliver up to 8A of continuous output current, suitable for high-current applications.
3. High Efficiency: It offers efficiency up to 96%, reducing heat generation and improving performance.
4. Low Quiescent Current: With a low quiescent current of 3µA, it is optimized for battery-powered applications to extend battery life.
5. Fast Transient Response: The fast transient response helps maintain stable output under rapidly changing load conditions.
6. Adjustable Frequency: Switch frequency ranges from 200kHz to 3MHz, allowing designers to optimize for efficiency or size.
7. Compact Design: Available in a small package, it supports compact designs for space-constrained applications.
8. Protection Features: It includes overcurrent, overvoltage, and thermal shutdown protections to ensure reliability.
These features make the LT8619C a robust choice for automotive, industrial, and consumer electronics power supply designs.
Pinout
1. Input Voltage (VIN): Supplies power to the internal circuitry.
2. Output Voltage (VOUT): Provides regulated output voltage.
3. Switch Node (SW): Connects to the inductor for energy transfer.
4. Ground (GND): Reference point for the circuit.
5. Feedback (FB): Used for setting the output voltage via a resistor divider.
6. Enable (EN): Turns the regulator on or off.
7. Synchronization (SYNC): Allows synchronization to an external clock.
8. Soft-Start (SS): Controls the soft-start timing to minimize inrush current.
9. BST: Bootstrap capacitor connection to drive the high-side switch.
These functions facilitate efficient step-down conversion with high switching frequency and low dropout, making the LT8619C suitable for applications requiring compactness and high performance. Always refer to the specific datasheet for detailed pin configuration and function.