Datasheets
TPS2045DG4 by: Texas Instruments

0.25A loading, 0.44A ILIMIT, 2.7-5.5V, 80mΩ USB power switch, active-low 8-SOIC -40 to 125

Part Details for TPS2045DG4 by Texas Instruments

Results Overview of TPS2045DG4 by Texas Instruments

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Applications Consumer Electronics Audio and Video Systems Telecommunications Entertainment and Gaming

TPS2045DG4 Information

TPS2045DG4 by Texas Instruments is a Power Management Circuit.
Power Management Circuits are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for TPS2045DG4

Part # Distributor Description Stock Price Buy
Vyrian Peripheral ICs 647
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Part Details for TPS2045DG4

TPS2045DG4 CAD Models

TPS2045DG4 Part Data Attributes

TPS2045DG4 Texas Instruments
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TPS2045DG4 Texas Instruments 0.25A loading, 0.44A ILIMIT, 2.7-5.5V, 80mΩ USB power switch, active-low 8-SOIC -40 to 125
Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SOIC
Package Description SOP,
Pin Count 8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Date Of Intro 1999-04-08
Samacsys Manufacturer Texas Instruments
Adjustable Threshold NO
Analog IC - Other Type LOAD SWITCH
JESD-30 Code R-PDSO-G8
JESD-609 Code e4
Length 4.9 mm
Moisture Sensitivity Level 1
Number of Channels 1
Number of Functions 1
Number of Terminals 8
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1.75 mm
Supply Voltage-Max (Vsup) 5.5 V
Supply Voltage-Min (Vsup) 2.7 V
Supply Voltage-Nom (Vsup) 3.3 V
Surface Mount YES
Temperature Grade INDUSTRIAL
Terminal Finish NICKEL PALLADIUM GOLD
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 3.9 mm

TPS2045DG4 Related Parts

TPS2045DG4 Frequently Asked Questions (FAQ)

  • The maximum current limit for the TPS2045DG4 is 4A, but it's recommended to limit the current to 3.5A for continuous operation to ensure reliable performance and prevent overheating.

  • To calculate the power dissipation, use the formula: Pd = (Vin - Vout) x Iout x Rds(on). Rds(on) is the on-state resistance, which is typically around 0.04 ohms for the TPS2045DG4. Make sure to check the datasheet for the specific Rds(on) value and calculate the power dissipation accordingly.

  • The EN pin is used to enable or disable the TPS2045DG4. When the EN pin is high (logic level 1), the device is enabled, and when it's low (logic level 0), the device is disabled. You can use the EN pin to control the power supply to your load or to implement power-saving features in your design.

  • Choose an input capacitor with a voltage rating that exceeds the maximum input voltage, and a capacitance value that is at least 10uF. A low-ESR capacitor (e.g., ceramic or film capacitor) is recommended to minimize voltage ripple and ensure stable operation.

  • The minimum input voltage required for the TPS2045DG4 to operate is 2.7V. However, the device can operate down to 2.5V with reduced performance and efficiency.

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