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TUSB551
  • TUSB551
  • TUSB551

TUSB551

ACTIVE

USB 3.0 Single-Channel redriver with 1.8V Supply

Texas Instruments TUSB551 Product Info

1 April 2026 3

Parameters

Type

Redriver

Function

USB 3.0

USB speed (Mbps)

5000

Number of channels

1

Supply voltage (max) (V)

1.98

Supply voltage (min) (V)

1.62

Input/output voltage (min) (V)

0

Input/output voltage (max) (V)

1.2

Configuration

Single-channel

Features

Single Channel USB 3.0 Redriver with 1.8V power Supply

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Supply current (max) (µA)

82000

ESD HBM (typ) (kV)

4

Bandwidth (MHz)

2500

Package

X2QFN (RWB)-12-2.56 mm² 1.6 x 1.6

Features

  • USB3.0 SuperSpeed Re-Driver with 1.8 V Power
    Supply
  • Ultra Low-Power Architecture:
    • Active: <130 mW
    • U2/U3: <22 mW
    • < 8mW with No Connection
  • Optimal Receiver Equalization:
    • 3/6/9 dB
  • Superior Drive Performance
  • Automatic LFPS De-Emphasis Control To Meet
    USB 3.0 Certification Requirements
  • No Host/Device-Side Requirement
  • Small Package Options
  • Hot-Plug Capable
  • ESD protection exceeds > ±4kV HBM
  • -40°C to 85°C Industrial Temperature Range
  • USB3.0 SuperSpeed Re-Driver with 1.8 V Power
    Supply
  • Ultra Low-Power Architecture:
    • Active: <130 mW
    • U2/U3: <22 mW
    • < 8mW with No Connection
  • Optimal Receiver Equalization:
    • 3/6/9 dB
  • Superior Drive Performance
  • Automatic LFPS De-Emphasis Control To Meet
    USB 3.0 Certification Requirements
  • No Host/Device-Side Requirement
  • Small Package Options
  • Hot-Plug Capable
  • ESD protection exceeds > ±4kV HBM
  • -40°C to 85°C Industrial Temperature Range

Description

The TUSB551 is a 4th-generation USB3.0 SuperSpeed (SS) re-driver that features a 1.8V power supply with low consumption, superior output drive performance, and automatic LFPS De-Emphasis control for full USB 3.0 compliance. The re-driver offers selectable gain settings in the equalizer to account for channel loss. These settings are controlled by the EQ terminal. To compensate for downstream transmission line losses, the output driver supports configuration of De-Emphasis and Output Swing (terminals DE and OS). These settings allow optimal performance, increased signaling distance, and flexibility in placement of the TUSB551 in the SuperSpeed USB path.

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