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MIC2551BTS from MICREL

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MIC2551BTS

Manufacturer: MICREL

USB Transceiver

Partnumber Manufacturer Quantity Availability
MIC2551BTS MICREL 3268 In Stock

Description and Introduction

USB Transceiver # MIC2551BTS: High-Performance USB Power Switch with Overcurrent Protection  

The MIC2551BTS is a highly efficient, integrated USB power switch designed to provide robust power management and protection for USB applications. Engineered for reliability and performance, this component is ideal for portable devices, hubs, and other systems requiring precise power control.  

## Key Features  

- **High-Side Power Switching**: The MIC2551BTS operates as a high-side MOSFET switch, minimizing voltage drop and ensuring efficient power delivery.  
- **Adjustable Current Limit**: With a programmable current limit ranging from 100mA to 1.5A, the device offers flexibility for various USB power requirements.  
- **Fast Overcurrent Response**: The integrated fault protection mechanism rapidly disconnects power in case of an overcurrent event, safeguarding connected devices.  
- **Low Quiescent Current**: Optimized for battery-powered applications, the switch consumes minimal power in standby mode, extending device runtime.  
- **Thermal Shutdown Protection**: An internal thermal sensor prevents damage by disabling the switch if excessive temperatures are detected.  

## Applications  

The MIC2551BTS is well-suited for a wide range of applications, including:  
- USB hubs and peripherals  
- Portable electronics such as smartphones and tablets  
- Industrial and automotive USB interfaces  
- Power distribution systems requiring precise current regulation  

## Advantages  

By integrating multiple protection features into a compact package, the MIC2551BTS simplifies system design while enhancing reliability. Its fast response to fault conditions ensures compliance with USB power specifications, making it a dependable choice for engineers seeking a robust power management solution.  

For designers looking to optimize power efficiency and safety in USB-enabled devices, the MIC2551BTS delivers a high-performance, space-saving solution with minimal external components required.

Application Scenarios & Design Considerations

USB Transceiver

Alternative Part Number

  • USB2512B-AEZG --: USB 2.0 transceiver/controller from Microchip (which acquired Micrel), functionally similar USB interface role and widely available.
  • TUSB2551A --: USB transceiver IC with comparable USB signaling function, good drop-in candidate for USB interface designs.
  • ISP1504A --: USB transceiver device offering similar USB physical-layer functionality as an alternative source.
  • TUSB2551ARGTR --: USB transceiver in the same class as the MIC2551, pin-compatible style USB 2.0 signaling device from a major alternate vendor.
  • ISP1504ABS --: USB transceiver IC offering comparable USB 2.0 interface functionality as a cross-vendor replacement option.

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