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Product Detailed Parameters
- Description：IC PWR SWITCH 1:1 20VQFN
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Switch Type：USB Switch
- Number of Outputs：2
- Ratio - Input:Output：1:01
- Output Configuration：High Side
- Output Type：-
- Interface：I2C, SMBus
- Voltage - Load：2.9V ~ 5.5V
- Voltage - Supply (Vcc/Vdd)：4.5V ~ 5.5V
- Current - Output (Max)：3A
- Rds On (Typ)：18mOhm
- Input Type：-
- Features：-
- Fault Protection：Current Limiting (Fixed), Over Temperature, Over Voltage, UVLO
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-VQFN (3x3)
- Package / Case：20-VFQFN
- Grade：-
- Qualification：-
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Overview
The UCS2114-1-V/LX is a dual USB port power switch manufactured by Microchip Technology. It features a 1:1 input-to-output ratio with two high-side outputs capable of delivering up to 3A each. The device operates within a supply voltage range of 4.5V to 5.5V and supports load voltages from 2.9V to 5.5V. Key electrical parameters include a typical on-resistance of 18 mΩ and an operating supply current of 700 µA. It utilizes I2C/SMBus interface for control and is housed in a 20-VQFN (3x3) surface-mount package.
Feature Summary
- Integrates dual independent USB power switches with integrated current sensing capabilities
- Provides comprehensive fault protection including fixed current limit, overtemperature, overvoltage, and undervoltage lockout
- Supports digital control via I2C and SMBus interfaces for dynamic configuration
Applications
- USB hub power distribution circuits
- Portable electronic device power management
- Consumer electronics requiring USB port protection
Procurement Notes
Verify the specific ordering suffix matches the required package and temperature grade. Confirm RoHS compliance status aligns with project requirements. Ensure the supplier provides valid traceability documentation. Check for any recent product change notices regarding assembly sites or labeling that may affect integration.
Selection Notes
Select this component when dual isolated USB ports require individual current limiting and digital control. The low on-resistance minimizes power loss during conduction. The I2C interface allows for system-level monitoring and adaptive power management strategies compared to passive switches.
Part Context
This part belongs to the UCS2114 family of dual USB power switches. It serves as a protected switching solution for USB 2.0 applications. The device replaces discrete MOSFET and protection circuit designs by integrating control logic and protection mechanisms into a single compact package.
Replacement Considerations
UCS2114T-1-V/LX is a tape-and-reel variant of the same functional device. Verify packaging format requirements before substitution. Other family members may offer different pin configurations or additional channels.
