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LM3100MH
+Lista de MateriaisIC REG BUCK ADJ 1.5A 20HTSSOP
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FabricanteTexas Instruments
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Peça do Fabricante #LM3100MH
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Pacote HTSSOP-20
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Em Estoque3820
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Especificações
| Atributo | Valor |
| Package / Case | Tube |
| Series | SIMPLE SWITCHER® |
| Part Status | Not For New Designs |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 36V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 7.2V |
| Current - Output | 1.5A |
| Frequency - Switching | Up to 1MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Visão Geral
Description
Key features include a wide input voltage range, typically from 4.5V to 42V, and an adjustable output voltage ranging from 0.8V to 37V. The LM3100MH offers a switching frequency of up to 1 MHz, which allows for smaller external components and a compact design. It also includes features like soft-start, thermal shutdown, and current limit protection to enhance safety and performance.
The package type, "MH," indicates a standard thermally-enhanced TSSOP-20 package, which ensures effective heat dissipation. This component is commonly used in automotive, industrial, and telecommunications fields due to its robust performance and flexibility.
Equivalent
1. LM2596 - A popular adjustable buck converter.
2. LM2675 - A simple switcher step-down regulator.
3. TPS54331 - A 3A step-down converter.
4. MP1584 - A 3A step-down regulator by Monolithic Power Systems.
5. L4973 - A STMicroelectronics step-down switching regulator.
Ensure compatibility with your specific requirements before substituting.
Features
1. Input Voltage Range: Operates between 4.5V to 42V, making it versatile for various applications.
2. Output Current: Capable of delivering up to 1.5A of continuous output current.
3. Efficiency: High efficiency up to 96% due to its synchronous rectification.
4. Switching Frequency: Adjustable switching frequency ranging from 250 kHz to 1.5 MHz, allowing for design flexibility.
5. Soft-Start Capability: Includes a soft-start feature to limit inrush current during startup.
6. Protection Features: Over-current protection, thermal shutdown, and under-voltage lockout to ensure reliable operation.
7. Thermal Package: Available in a thermally-enhanced HTSSOP package for better heat dissipation.
These features make the LM3100MH suitable for applications requiring high efficiency and reliability, such as automotive, industrial, and telecom power systems.
Pinout
The specific pin functions are as follows:
1. Enable (EN) - Enables or disables the regulator.
2. Feedback (FB) - Receives the feedback voltage for regulation.
3. Bootstrap (BOOT) - Provides a bootstrap voltage for the high-side gate driver.
4. Switch Node (SW) - Connects to the inductor and carries the output switching voltage.
5-14. Various ground (GND) and power supply pins - Used for signal ground and main power paths.
15. Input Voltage (VIN) - Supplies input voltage to the regulator.
16. Compensation (COMP) - Connects to an external compensation network to stabilize regulation.
These pin functionalities ensure efficient voltage regulation and stability in the LM3100MH's operation.