RT8979WSC

Description：4:1 MICRO USB SWITCHES WL-CSP-25
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:e8f824b75640 Category: Power Distribution Switches, Load Drivers Brand: Richtek USA Inc.

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Product introduction

Product Detailed Parameters

Description：4:1 MICRO USB SWITCHES WL-CSP-25
Series：-
Mfr：Richtek USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Switch Type：USB Switch
Number of Outputs：1
Ratio - Input:Output：1:01
Output Configuration：High Side
Output Type：P-Channel
Interface：I2C
Voltage - Load：4V ~ 20V
Voltage - Supply (Vcc/Vdd)：1.7V ~ 3.6V
Current - Output (Max)：2.5A
Rds On (Typ)：6Ohm
Input Type：Non-Inverting
Features：-
Fault Protection：-
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Supplier Device Package：25-WLCSP (2.07x2.07)
Package / Case：25-UFBGA, WLCSP
Grade：-
Qualification：-

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RT8979WSC

Overview

The RT8979WSC is a 4:1 Micro USB switch manufactured by Richtek USA Inc., housed in a 25-WLCSP package measuring 2.07x2.07 mm. It operates within an input voltage range of 1.7V to 3.6V and supports a continuous output current of 2.5A. The device integrates accessory detection capabilities for Micro USB interfaces, functioning as a high-side power distribution switch.

Feature Summary

Integrates four selectable outputs from a single input for Micro USB signal routing
Includes built-in accessory detection logic for connected peripheral identification
Utilizes a compact WLCSP-25 footprint suitable for space-constrained mobile designs

Applications

Micro USB port protection and switching in smartphones
Accessory detection circuits in portable electronic devices
Power distribution management for USB peripherals

Procurement Notes

Verify the specific suffix and tape-and-reel specifications against the official Richtek datasheet before ordering. Confirm that the WLCSP-25 package dimensions align with your PCB land pattern requirements. Ensure compatibility with the intended operating voltage range of 1.7V to 3.6V for your system design.

Selection Notes

Select this component when a compact solution is required for managing multiple Micro USB lines or accessories. The integrated detection feature simplifies circuit design by reducing external components. Consider the thermal performance and current handling capabilities relative to the specific load requirements of the target application.

Part Context

This part belongs to Richtek's family of USB interface ICs designed for mobile applications. It serves as a specialized switch for managing connectivity and power delivery in devices utilizing Micro USB standards. The integration of detection features distinguishes it from basic passive switches.