MP4688DN-LF-Z

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MP4688DN-LF-Z

+Nomenclature

IC LED DRVR RGLTR PWM 1A 8SOICE

  • FabricantMonolithique Power Systems GmbH.

  • Pièce fabricant #MP4688DN-LF-Z

  • Package SOIC-8

  • En stock7487

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Spécifications

Attribut Valeur
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Type DC DC Regulator
Topology Step-Down (Buck)
InternalSwitch(s) Yes
NumberofOutputs 1
Voltage-Supply(Min) 4.5V
Voltage-Supply(Max) 75V
Current-Output/Channel 1A
Frequency 2MHz
Dimming PWM
Applications Automotive, Lighting
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width) Exposed Pad

Présentation

Description

The MP4688DN-LF-Z is a high-efficiency, step-down, LED driver module designed for powering high-brightness LEDs. It integrates a power MOSFET, a high-side current-sense amplifier, and a current control loop to maintain accurate LED current regulation. The device operates over a wide input voltage range and offers a constant current output, which is essential for consistent LED performance.
Key features of the MP4688DN-LF-Z include its high efficiency, low dropout voltage, and precise current regulation, making it suitable for applications in automotive lighting, architectural lighting, and general illumination. It also includes protection features such as thermal shutdown, over-current protection, and under-voltage lockout, enhancing the reliability and durability of the system.
The module's compact design allows for easy integration into systems with limited space, while its flexibility in dimming control—compatible with both analog and PWM signals—offers adaptability for various lighting applications. Overall, the MP4688DN-LF-Z provides an efficient and reliable solution for LED driving needs.

Equivalent

The MP4688DN-LF-Z is a high-voltage, step-down switching regulator from Monolithic Power Systems. Equivalent products can include other DC-DC buck converters with similar specifications. Some alternatives might be:
1. LM2596 from Texas Instruments
2. LMR14030 from Texas Instruments
3. LM2576 from ON Semiconductor
4. MC34063 from ON Semiconductor
5. LT1375 from Analog Devices
Ensure to verify the specifications such as input voltage range, output current, and frequency to confirm compatibility.

Features

The MP4688DN-LF-Z is a high-efficiency, step-down, DC-DC converter IC designed for various power management applications. Key features include:
1. Wide Input Voltage Range: Supports inputs from 4.5V to 55V, making it versatile for different power sources.
2. Adjustable Output Voltage: Provides a regulated output voltage range from 0.8V to 85% of the input voltage.
3. High Efficiency: Optimized performance with up to 95% efficiency, enhancing energy savings.
4. Integrated Power MOSFETs: Reduces the need for external components and simplifies the design.
5. Low Dropout Operation: Maintains regulation even at low input-to-output voltage differentials.
6. Current Mode Control: Ensures fast transient response and simple loop compensation.
7. Over-Current Protection: Guards against excessive current conditions.
8. Thermal Shutdown: Prevents overheating by disabling the output when temperatures exceed safe limits.
9. Soft Start: Provides a controlled ramp-up of the output voltage to minimize inrush current.
10. Compact Package: Available in a space-efficient, thermally-enhanced package suitable for compact designs.
These features make the MP4688DN-LF-Z ideal for applications requiring high efficiency and reliability.

Pinout

The MP4688DN-LF-Z is a step-down converter from Monolithic Power Systems. It typically comes in a standard SOIC-8 package, which has 8 pins. Here is a brief overview of its pin functions:
1. SW (Pins 1, 2): The switch node connected to the inductor, and is the drain of the internal high-side power MOSFET.
2. GND (Pin 3): Ground pin.
3. FB (Pin 4): Feedback pin used to set the output voltage.
4. COMP (Pin 5): Compensation node. This pin is used to stabilize the control loop with an external RC network.
5. EN (Pin 6): Enable pin. A high level turns on the regulator, and a low level turns it off.
6. VIN (Pin 7): Power supply input pin.
7. BOOT (Pin 8): Bootstrap pin for the internal high-side MOSFET gate driver.
The MP4688DN-LF-Z is designed for applications requiring efficient voltage regulation from a higher input voltage to a lower output voltage, such as in consumer electronics, telecom, and industrial power systems.

Manufacturer

The MP4688DN-LF-Z is manufactured by Monolithic Power Systems, Inc. (MPS). MPS is a semiconductor company that specializes in high-performance analog and mixed-signal integrated circuits. Founded in 1997 and headquartered in Kirkland, Washington, MPS designs, develops, and markets products for various applications, including power management, automotive, industrial, communications, and consumer electronics. The company is known for its innovative solutions that aim to improve efficiency and performance while reducing energy consumption in electronic devices.

Application

The MP4688DN-LF-Z is a high-efficiency, step-down converter designed for use in various applications. Key areas include consumer electronics, where it powers devices like TVs, set-top boxes, and gaming consoles. It's also utilized in telecommunications for networking equipment and in industrial settings for power management in control systems. Additionally, it can be found in automotive electronics, providing efficient power conversion for infotainment and navigation systems. Its compact design and high efficiency make it ideal for any application requiring reliable power regulation in a small footprint.

Package

The MP4688DN-LF-Z is typically offered in a SOIC-8 package, which is a small outline integrated circuit with eight pins. This package type is commonly used for surface-mounted devices.

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