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LM3488MMX
+BOMIC REG CTRLR MULT TOP 8VSSOP
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #LM3488MMX
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Bảng dữ liệu LM3488MMX DataSheet
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| PartStatus | Obsolete |
| BaseProductNumber | LM3488 |
| OutputType | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Boost, Flyback, SEPIC |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 2.97V ~ 40V |
| Frequency-Switching | 100kHz ~ 1MHz |
| DutyCycle(Max) | 100% |
| SynchronousRectifier | No |
| ClockSync | Yes |
| ControlFeatures | Enable, Frequency Control |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| SupplierDevicePackage | 8-VSSOP |
| Packaging | Tape & Reel (TR) |
Tổng quan
Description
Key features include adjustable output voltage, programmable switching frequency, and built-in soft-start functionality, which helps prevent inrush current at startup. The LM3488 also includes over-voltage protection, under-voltage lockout, and thermal shutdown, ensuring safe operation under various conditions.
Its current-mode control architecture supports better transient response and simplified compensation, making it easier to design stable power supplies. The LM3488MMX is commonly used in step-down (buck) converters but can also be adapted for other configurations. Overall, it provides an efficient and flexible solution for creating reliable and robust power management systems.
Equivalent
Features
1. Wide Input Voltage Range: Accepts 2.9V to 40V, making it suitable for diverse power sources.
2. Adjustable Output Voltage: Allows flexibility with output voltage settings from 1.215V to 37V.
3. High Efficiency: Utilizes a PWM control scheme to enhance efficiency, reducing heat generation.
4. Current Limiting: Built-in current limiting for protection against overcurrent scenarios.
5. Thermal Shutdown: Offers thermal protection to prevent overheating and potential damage.
6. Compact Package: Available in a small footprint (MSOP-10), ideal for space-constrained applications.
7. Integrated Features: Includes soft-start capability and external compensation options for stability.
8. Synchronous Operation: Ensures improved efficiency and reduced ripple in output voltage.
These features make the LM3488MMX a reliable choice for power management in consumer electronics, industrial systems, and battery-powered devices.
Pinout
1. Input Voltage (VIN): Power supply input.
2. Ground (GND): Common reference point.
3. SW (Switch): Output switch for the regulator.
4. FB (Feedback): Feedback pin for voltage regulation.
5. COMP (Compensation): Compensation network for stability.
6. ISEN (Current Sense): Current sensing input for overcurrent protection.
7. CSN (Current Sense Negative): Negative input for the current sense.
8. RT (Timing Resistor): Connects to a resistor for timing control.
9. SS (Soft Start): Soft start control pin to reduce inrush current.
10. VCC (Voltage Common Collector): Output for internal biasing.
11. PVIN (Power Input): Power input for the internal circuit.
12. DR (Driver): Gate driver for the external switch.
The remaining pins are typically used for additional features or signals, which can vary based on specific design requirements.
Manufacturer
Application
1. DC-DC Converters: It is suitable for buck, boost, or buck-boost converter designs.
2. Power Management Solutions: Utilized in power supplies for computers, telecommunications, and industrial equipment.
3. Battery Management Systems: Employed for charging and managing battery systems in portable devices and electric vehicles.
4. LED Drivers: Used in driving LEDs for lighting applications.
5. Consumer Electronics: Integrated into devices requiring efficient power regulation.
Its versatility and efficiency make it ideal for various demanding power management tasks.