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LTC3824EMSE
+Lista de MateriaisSwitching Voltage Regulators LTC3824 - High Voltage Step-Down Controller With 40- A Quiescent Current
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FabricanteDispositivos analógicos
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Peça do Fabricante #LTC3824EMSE
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Ficha Técnica LTC3824EMSE DataSheet
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Especificações
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Description
The LTC3824EMSE utilizes a constant-frequency, current-mode architecture, ensuring stable operation and precise output voltage regulation, even under varying loads. It offers features like adjustable switching frequency, soft-start capability, and thermal shutdown, enhancing its versatility and reliability. The output voltage is adjustable, accommodating different application requirements.
Its compact MSOP (Mini Small Outline Package) form factor is ideal for space-constrained designs, while the current-mode control provides fast transient response and ease of loop compensation. Overall, the LTC3824EMSE serves as a robust solution for efficiently stepping down high-voltage inputs to lower voltages in diverse electronic applications.
Equivalent
1. Texas Instruments LM3488: A versatile high-efficiency boost and SEPIC controller.
2. ON Semiconductor NCP3063: A switching regulator for step-down applications.
3. Maxim Integrated MAX16922: A step-down converter with a wide input range.
4. Analog Devices ADP2441: A synchronous step-down DC-DC regulator.
Make sure to verify specifications and compatibility before substitution, as exact equivalents may vary based on specific circuit requirements.
Features
1. Wide Input Voltage Range: Operates from 2.4V to 34V, suitable for a variety of power sources.
2. Adjustable Output Voltage: Capable of regulating output voltages up to 60V, providing flexibility in power management.
3. Low Quiescent Current: Features a low quiescent current of 60µA, enabling efficient power usage during low-load conditions.
4. Synchronous Rectification: Supports both synchronous and non-synchronous boost configurations for improved efficiency.
5. Current Mode Control: Uses current mode control for fast transient response and ease of loop compensation.
6. Frequency Synchronization: Allows synchronization with an external clock for noise-sensitive applications.
7. Programmable Switching Frequency: Offers a range from 100kHz to 1MHz, optimizing size and efficiency.
8. Protection Features: Includes overcurrent protection, thermal shutdown, and soft-start to prevent inrush current and ensure reliability.
These features make the LTC3824EMSE versatile for use in automotive, industrial, and battery-operated systems.
Pinout
1. RUN/SS: Run control and soft-start pin.
2. VIN: Input supply voltage pin.
3. SW: Switch node pin for connecting the inductor.
4. GND: Ground pin.
5. VFB: Feedback voltage pin, used for setting the output voltage.
6. FREQ: Frequency control pin for setting the oscillator frequency.
7. ITH/RUN: Compensation and current limit programming pin.
8. PGOOD: Power good output pin, indicates if the output voltage is in regulation.
9. BG: Gate drive for external bottom-side N-channel MOSFET.
10. TG: Gate drive for external top-side N-channel MOSFET.
This controller is designed for applications requiring high efficiency and compact solutions, capable of delivering output voltages from 0.8V to 15V from a wide input voltage range.