TPS2054BDRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TPS2054BDRG4 is a quad-channel power distribution switch IC with 2.7V to 5.5V input range, 500 mA per channel, undervoltage lockout, and fault reporting in a 16-pin SOIC package for USB and multi-rail power management. Available in stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- TPS2054BDRG4 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 TPS2054BDRG4?
- Quad independent power switches with 500 mA per channel and integrated UVLO (undervoltage lockout) protect 4 separate load rails from brown-out conditions
- Input voltage range of 2.7V to 5.5V covers both 3.3V and 5V USB bus applications without external level shifting
- Open-drain fault output per channel provides active-low fault indication for each of 4 switched outputs, enabling MCU-supervised power sequencing
What is TPS2054BDRG4 used for?
The TPS2054BDRG4 is designed for USB hub power management, multi-port charging stations, and embedded system power sequencing where up to 4 independent downstream loads must be individually switched and protected. Its 2.7V to 5.5V input tolerance covers both USB 5V bus power and 3.3V system rails, making it suitable for portable devices, industrial controllers, and computing accessories needing per-port overcurrent and UVLO protection without discrete FETs and comparators. The 16-pin SOIC package enables compact layout in space-constrained USB hub and docking station designs.
What are the specifications of TPS2054BDRG4?
| Pbfree Code | No |
| YTEOL | 15 |
| Additional Feature | UNDERVOLTAGE LOCKOUT |
| Adjustable Threshold | NO |
| Analog IC - Other Type | LOAD SWITCH |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.7V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Channels | 4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| 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 | 1.27mm |
| 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 | 8542.39.00.90 |
| Country of Origin | Mexico |
Where can I find the TPS2054BDRG4 datasheet?
TPS2054BDRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS2054BDRG4?
Compatible alternatives and drop-in replacements for TPS2054BDRG4:
Texas Instruments Fixed, 4 Channel, PDSO16
Frequently Asked Questions
How many independent switched power channels does the TPS2054BDRG4 provide and what is the maximum current per channel?
The TPS2054BDRG4 provides 4 independent switched power channels, each rated for a continuous output current of 500 mA. Each channel has its own enable input and open-drain fault flag, allowing the host MCU to enable or disable individual 500 mA loads independently — for example, powering 4 USB downstream ports sequentially to limit inrush current on a shared 5V bus.
What is the undervoltage lockout threshold of the TPS2054BDRG4 and how does it protect connected loads during power rail droop?
The TPS2054BDRG4 includes an integrated UVLO circuit that turns off all output channels when the input voltage drops below approximately 2.5V. This prevents connected loads, such as USB peripherals requiring a stable 5V ±5% supply, from receiving under-voltage power that could cause data corruption or latch-up. UVLO re-enables the outputs with hysteresis once the rail recovers above 2.7V, avoiding rapid on-off cycling during marginal supply conditions.
How does the TPS2054BDRG4 signal a fault condition, and how should a designer connect its fault outputs to a 3.3V MCU GPIO?
Each channel of the TPS2054BDRG4 has an active-low open-drain fault (FAULT) pin that pulls low when an overcurrent or thermal fault occurs. Since the output is open-drain, a pull-up resistor of 10 kΩ to the MCU's 3.3V supply is required to define a logic-high idle state. The fault pin can directly interface with 3.3V GPIO inputs because the open-drain structure is compatible with any supply voltage between 2.7V and 5.5V, and pulls down to ground (0V) on fault regardless of the pull-up voltage.
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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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