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Product Detailed Parameters
- Description：3:1 USB2.0 High-Speed USB Switch
- Series：-
- Mfr：Dioo Microcircuits Co., Ltd.
- Package：Tape & Reel (TR)
- Applications：USB
- Multiplexer/Demultiplexer Circuit：-
- Switch Circuit：-
- Number of Channels：1
- On-State Resistance (Max)：6Ohm
- Voltage - Supply, Single (V+)：2.7V ~ 4.4V
- Voltage - Supply, Dual (V±)：-
- -3db Bandwidth：720MHz
- Features：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：-
- Package / Case：12-UFQFN
- Supplier Device Package：12-DQFN (1.8x1.8)
- Grade：-
- Qualification：-
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Overview
The DIO3303LN12 is a USB switch IC featuring two SP3T (single pole triple throw) switches, designed for USB 2.0 high-speed data signal routing. It operates within a supply voltage range of 2.7 V to 4.4 V and supports an operating temperature from -40°C to +85°C. The device provides a maximum on-resistance of 3.5 Ohms and achieves a -3 dB bandwidth of 720 MHz. It incorporates internal termination resistors and offers low capacitance characteristics with 6.8 pF in the ON state. The component is housed in a DQFN-12 package and includes ESD protection ratings of 4 kV HBM and 2 kV CDM.
Feature Summary
- Supports dual SP3T switching configurations for handling multiple USB 2.0 high-speed data inputs
- Ensures compliance with USB 2.0 high-speed signal eye patterns while minimizing additive distortion
- Features high crosstalk rejection and off-isolation capabilities for signal integrity
- Includes 5.25 V tolerance on the COM pin for flexible interface compatibility
Applications
- Cell phones
- Portable instrumentation
- Battery powered communications
- Computer peripherals
Procurement Notes
Verify the specific ordering suffix LN12 against official manufacturer documentation to confirm the tape and reel packaging quantity of 3000 units. Ensure that the selected variant matches the required operating temperature range and package dimensions specified in the datasheet before finalizing procurement orders.
Selection Notes
Select this component when designing circuits requiring dual independent SP3T switching for USB 2.0 or UART signals. Verify that the system power supply remains within the 2.7 V to 4.4 V operational limits. Confirm that the PCB layout accommodates the DQFN-12 package dimensions and thermal requirements for the intended application environment.
Part Context
The DIO3303LN12 belongs to the DIO3303 series of USB switch integrated circuits manufactured by Dioo Microcircuits. This series focuses on providing high-speed signal routing solutions for portable electronic devices. The LN12 designation specifically identifies the version packaged in a DQFN-12 form factor suitable for surface mount assembly.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative components based on matching SP3T configuration, voltage ranges, and package types if substitution is necessary.
