TPS2068DGNG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TPS2068DGNG4 is a single-channel high-side USB power switch and load switch rated at 5.5 V and 2.1 A in an 8-pin HVSSOP with exposed pad package. It includes undervoltage lockout protection for robust USB port power distribution. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TPS2068DGNG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS2068DGNG4?
- 2.1 A continuous load current with 5.5 V maximum input for full USB 2.0 and USB 3.x port power distribution
- Integrated undervoltage lockout (UVLO) prevents output activation during supply ramp-up to protect downstream devices
- High-side switch topology provides true load disconnect with low on-resistance for minimal voltage drop
- 8-pin HVSSOP with exposed thermal pad improves heat dissipation at high load currents in compact PCB designs
- Single-channel dedicated switch simplifies fault isolation and independent enable control of USB ports
What is TPS2068DGNG4 used for?
The TPS2068DGNG4 is designed for USB host port power management in laptops, docking stations, and embedded systems where each USB port requires independently switchable, current-limited 5 V power distribution. Its 2.1 A current rating satisfies the USB Battery Charging 1.2 specification for high-current charging ports, enabling tablet and smartphone charging from desktop USB hubs. The undervoltage lockout also makes it suitable for industrial panel computers and automotive infotainment systems where supply voltages may droop during startup sequences.
What are the specifications of TPS2068DGNG4?
| YTEOL | 0 |
| Additional Feature | UNDERVOLTAGE LOCKOUT |
| Adjustable Threshold | NO |
| Analog IC - Other Type | LOAD SWITCH |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TPS2068DGNG4 datasheet?
TPS2068DGNG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS2068DGNG4?
Compatible alternatives and drop-in replacements for TPS2068DGNG4:
Frequently Asked Questions
How much current can TPS2068DGNG4 supply to a USB device, and does it meet USB Battery Charging specs?
The TPS2068DGNG4 supports up to 2.1 A continuous output current at 5.5 V maximum input, meeting the USB Battery Charging 1.2 standard which defines a 1.5 A Charging Downstream Port (CDP) and up to 2.4 A Dedicated Charging Port (DCP). This makes it suitable for powering tablets and smartphones from host USB ports that implement BC 1.2 compliant high-current charging without exceeding the switch's rated current.
What does the undervoltage lockout feature of TPS2068DGNG4 protect against in a USB power system?
The undervoltage lockout (UVLO) prevents the high-side switch from turning on until the input supply voltage reaches a defined threshold — typically around 4.3 V for a 5 V USB rail. This protects downstream USB devices from receiving insufficient voltage during power-rail ramp-up, preventing USB enumeration failures, data corruption in USB storage devices, or damage to sensitive USB peripherals that require stable 5 V ± 5% operation.
How does the exposed-pad HVSSOP-8 package of TPS2068DGNG4 handle thermal dissipation at 2.1 A loads?
At 2.1 A, the internal MOSFET dissipates power equal to I² × R_DS(on). The exposed thermal pad on the HVSSOP-8 package transfers heat directly to the PCB copper, reducing junction-to-ambient thermal resistance by approximately 40% compared to a standard SOIC-8 without an exposed pad. Connecting the exposed pad to a 25 mm² copper pour with 4 thermal vias is typically sufficient to keep junction temperature below 125°C at 2.1 A in still-air conditions at 25°C ambient.
When should TPS2068DGNG4 be preferred over a self-protected PMOS load switch in a USB hub design?
TPS2068DGNG4 is preferred when the design requires an N-channel high-side switch with a charge pump gate driver, which achieves lower R_DS(on) than a PMOS device of equivalent die size, reducing voltage drop at 2.1 A by approximately 20 mV to 50 mV. For a USB hub with 4 ports each running at 2.1 A, this saving translates to reduced total power dissipation of 0.4 W to 1 W, measurably improving hub thermal budget and efficiency compared to equivalent PMOS alternatives.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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