Press Center
Home About us Products Support Quality & Certification Career Contact us
• Power Management
    Linear Regulators
    Low Dropout Linear Regulators
    DDR Termination Regulators
    Shunt Reference Regulators
    Step Down Switching Regulators
    Switching Regulator
    Step-Up DC-DC Converter
    PWM Controller
    White LED Driver
    Supervisory Circuit
    Voltage Detection and System R
    USB Power Switch
    Power Factor Control
    Li-Battery Protection or Charg
    FET Bias Controllers
    Combo IC
    Inverting DC-DC Converter
• Amplifier / Comparator
    Audio Amplifiers
    Operational Amplifier
    Voltage Comparator
• Analog Switches
    Video Signal Switch
    Analog Multiplexers, Demultipl
• Hall ICs
• Special Application ICs
    Motor Controller IC
    Interface and Driver Circuit
    Telecommunication Circuit
    Melody IC
    Alarm /Sound Generator IC
    Remote Controller IC
    Television Circuit
    Leakage Current Detector
    Automotive IC
    A-D or D-A Converters
    Radio and Cassette Recorder Ci
    Mouse&Keyboard Controller
    Transient Voltage Suppressors
    Sense Monitor
    Video Filter
    ZCB snubber
• Logic
    Power Mosfet
• SCRs
Home >
US2076B Datasheet


The UTC U2076B is a dual integrated high-side power switch particularly designed for self-powered and bus-powered Universal Serial Bus (USB) applications.
The UTC U2076B meets the requirements of the USB. The low on-resistance of the switch satisfies USB voltage drop requirements.
Fault current is limited to typically 750mA, well below the UL 25VA safety requirement. Flag outputs are available to indicate fault conditions to the local USB controller. In addition, soft start can
eliminate the momentary voltage drop which is generated on the upstream port that may occur when the switch is enabled in bus-powered applications.
This device has independent functions enable and flag, and an enable input is compatible with both 3.3V and 5V logic.
The UTC U2076B includes protection circuits. Thermal shutdown circuit is designed to protect the device from being damaged when high-current loads exist. UVLO (Under-voltage lockout) is used to keep the device off unless there is a valid input voltage present.
The UTC U2076B is used in application such as USB host and self-powered hubs, bus-powered hubs, hot plug-in power supplies and battery-charger circuits.


* MOSFET with Low On-Resistance: 140mO max.@5.0V per Channel
* Continuous Load Current: 500mA (MIN.) per Channel
* Off-State Supply Current: 1 (TYP.)
* Output can be Forced Higher than Input (Off-State)
* Current Limit up to 1.25A (MAX.)
* Input Supply Voltage: 3.0V ~ 5.5V
* On-State Supply Current: 110 (TYP.)
* Thermal Shutdown Protection Circuit
* UVLO (Undervoltage Lockout): 2.4V (TYP.)
* Open-Drain Fault Flag
* 1ms Turn-On (Soft-Start) and Fast Turn-Off
* Compliant to USB Specifications
* Available with Active-High Enable
About us  |  Products  |  Contact us
Copyright 2011 UTC All received