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MIC4685WR
+BOMIC REG BUCK ADJUSTABLE 3A SPAK-7
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ManufacturerMicrochip Technology
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Mfr. Part #MIC4685WR
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Package SPak-7 (7 leads + Tab)
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In Stock3917
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Specifications
| Attribute | Value |
| Package | Tube |
| Series | SuperSwitcher™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4V |
| Voltage-Input(Max) | 30V |
| Voltage-Output(Min/Fixed) | 1.235V |
| Voltage-Output(Max) | 28.2V |
| Current-Output | 3A |
| Frequency-Switching | 200kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | SPak-7 (7 leads + Tab) |
Overview
Description
The MIC4685WR is a high-efficiency, step-down (buck) switching regulator designed for applications requiring low voltage outputs from high voltage input sources. It is part of the MIC4685 series, developed by Microchip Technology. The device is capable of delivering up to 1.3A of output current, with input voltage ranges from 4V to 30V, making it suitable for a wide variety of applications, including point-of-load conversions and battery-powered systems.
Key features of the MIC4685WR include an adjustable output voltage, typically ranging from 1.25V to 16.5V, a high switching frequency of 200kHz, and integrated features like overcurrent and thermal shutdown protection for enhanced reliability. Its efficiency can reach up to 90%, minimizing power loss and heat generation. The device is available in a compact, thermally enhanced package, making it ideal for space-constrained applications. Additionally, it utilizes a simple design with minimal external components, facilitating easy integration into electronics systems.
Key features of the MIC4685WR include an adjustable output voltage, typically ranging from 1.25V to 16.5V, a high switching frequency of 200kHz, and integrated features like overcurrent and thermal shutdown protection for enhanced reliability. Its efficiency can reach up to 90%, minimizing power loss and heat generation. The device is available in a compact, thermally enhanced package, making it ideal for space-constrained applications. Additionally, it utilizes a simple design with minimal external components, facilitating easy integration into electronics systems.
Equivalent
The MIC4685WR is a step-down voltage regulator. Equivalent products may include:
1. LM2596 by Texas Instruments
2. LM2675 by Texas Instruments
3. L4973 by STMicroelectronics
4. AP1509 by Diodes Incorporated
5. MP1584 by Monolithic Power Systems
These alternatives offer similar functionalities such as adjustable output voltage, similar input voltage range, and current capabilities, though it's important to check specific datasheets for compatibility.
1. LM2596 by Texas Instruments
2. LM2675 by Texas Instruments
3. L4973 by STMicroelectronics
4. AP1509 by Diodes Incorporated
5. MP1584 by Monolithic Power Systems
These alternatives offer similar functionalities such as adjustable output voltage, similar input voltage range, and current capabilities, though it's important to check specific datasheets for compatibility.
Features
The MIC4685WR is a high-efficiency step-down (buck) regulator designed for space-constrained applications. It features an input voltage range of 4V to 34V, making it versatile for various power supply conditions. The regulator delivers a fixed output voltage with a high output current capability. It achieves efficiency rates of up to 200 kHz switching frequency, which helps minimize external component size and count.
Key features include an internal 1.5A switch that reduces the need for external components, thereby simplifying the design and saving space. The device also offers thermal shutdown and current limit protection, ensuring robust performance under fault conditions. The MIC4685WR is known for its low power consumption, making it suitable for battery-operated devices.
With its compact design and high efficiency, it is ideal for applications like distributed power systems, automotive electronics, and industrial equipment. The regulator's ease of use is further enhanced by its simple external component requirements, which streamline the design process.
Key features include an internal 1.5A switch that reduces the need for external components, thereby simplifying the design and saving space. The device also offers thermal shutdown and current limit protection, ensuring robust performance under fault conditions. The MIC4685WR is known for its low power consumption, making it suitable for battery-operated devices.
With its compact design and high efficiency, it is ideal for applications like distributed power systems, automotive electronics, and industrial equipment. The regulator's ease of use is further enhanced by its simple external component requirements, which streamline the design process.
Pinout
The MIC4685WR is a high-efficiency buck (step-down) regulator. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Below is a concise explanation of the pin functions:
1. Pin 1 (VIN): Supply voltage input.
2. Pin 2 (SW): Switch node where the inductor is connected.
3. Pin 3 (GND): Ground connection.
4. Pin 4 (FB): Feedback input for the output voltage, connected to the output via a resistor divider.
5. Pin 5 (COMP): Compensation pin used for stabilizing the control loop.
6. Pin 6 (EN): Enable pin to turn the regulator on or off.
7. Pin 7 (BP): Bypass pin for the internal reference, typically connected to a capacitor.
8. Pin 8 (NC): No connection, often not internally connected.
These pins work together to efficiently step down voltage from a higher level to a lower level with high efficiency, making it suitable for various applications where energy efficiency is critical.
1. Pin 1 (VIN): Supply voltage input.
2. Pin 2 (SW): Switch node where the inductor is connected.
3. Pin 3 (GND): Ground connection.
4. Pin 4 (FB): Feedback input for the output voltage, connected to the output via a resistor divider.
5. Pin 5 (COMP): Compensation pin used for stabilizing the control loop.
6. Pin 6 (EN): Enable pin to turn the regulator on or off.
7. Pin 7 (BP): Bypass pin for the internal reference, typically connected to a capacitor.
8. Pin 8 (NC): No connection, often not internally connected.
These pins work together to efficiently step down voltage from a higher level to a lower level with high efficiency, making it suitable for various applications where energy efficiency is critical.
Manufacturer
The MIC4685WR is manufactured by Microchip Technology Inc. Microchip Technology is a leading semiconductor company that designs and manufactures microcontrollers, mixed-signal, analog, and Flash-IP integrated circuits. The company serves a diverse range of industries, including automotive, aerospace, consumer electronics, industrial, and telecommunications, providing solutions that enable embedded control applications. Founded in 1989 and headquartered in Chandler, Arizona, Microchip Technology is recognized for its comprehensive product portfolio and strong support for embedded system developers.
Application
The MIC4685WR is a high-efficiency, step-down (buck) switching voltage regulator. Its application areas include powering microcontrollers, FPGAs, and ASICs in embedded systems, battery-powered devices, and consumer electronics. It's also used in automotive electronics, industrial control systems, and telecommunications equipment due to its ability to provide a stable output voltage from a wide input voltage range. Additionally, it can be used in distributed power systems and DC-DC converter modules where compact size and high efficiency are crucial. The MIC4685WR is suitable for applications requiring tight load and line regulation, low power dissipation, and minimal external components.
Package
The MIC4685WR is typically available in a SOIC-8L (Small Outline Integrated Circuit with 8 Leads) package type.
