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Texas Instruments TPS2054AD
- Part No.:
- TPS2054AD
- Manufacturer:
- Texas Instruments
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS2054AD.pdf
- Description:
- IC PWR SWITCH N-CH 2X1:2 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,097
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Product details
Overview
TPS2054AD from Texas Instruments is a quad-channel, high-side N-channel MOSFET power-distribution switch with independent enable control per channel, 80-mΩ on-resistance at 5 V, 500 mA continuous current per channel, active-high CMOS/TTL-compatible enables, and integrated thermal/overcurrent protection with open-drain OCx outputs - designed for USB-powered peripherals and multi-rail embedded systems requiring robust inrush and short-circuit management.
For engineers reviewing the TPS2054AD datasheet, TPS2054AD pinout, TPS2054AD application, or TPS2054AD equivalent, this page delivers verified electrical specs (including 2.5-ms rise time, 2.7–5.5 V operating range, 20 µA max standby current), validated quad-channel pin mapping, real-world use cases in USB hubs and industrial I/O modules, and two confirmed alternative parts with documented functional differences.
Technical Context
The TPS2054AD integrates four independent 80-mΩ N-channel high-side switches, each driven by an internal charge pump enabling operation down to 2.7 V input while maintaining gate overdrive. Each channel features dedicated ENx inputs (active-high) and OCx open-drain fault indicators, with separate GNDA/GNDB grounds isolating IN1/OUT1–OUT2 and IN2/OUT3–OUT4 domains.
Its protection architecture combines fast current limiting (0.9 A typical trip, 0.7–1.3 A range) with dual-threshold thermal shutdown (trip at ~140°C, ~20°C hysteresis), allowing individual channel cycling without affecting adjacent channels. Undervoltage lockout (~2 V threshold) and <100 µA high-level supply current ensure stable operation under brownout and low-power conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Quad independent high-side power switches |
| Continuous current per channel | 500 mA - supports USB 2.0 downstream ports and sensor node rails |
| On-resistance (rDS(on)) | 80 mΩ at VI(IN) = 5 V, TJ = 25°C - limits voltage drop to ≤40 mV at 500 mA |
| Input voltage range | 2.7 V to 5.5 V - compatible with Li-ion, 3.3 V, and 5 V system rails |
| Rise/fall time | 2.5 ms / 4.4 ms (VI(IN) = 5.5 V, CL = 1 µF) - controls inrush, reduces EMI |
| Standby supply current | 20 µA max (all channels disabled) - enables ultra-low-power system sleep modes |
| Operating temperature | 0°C to 85°C ambient - qualified for industrial and commercial environments |
Pinout & Package
TPS2054AD is housed in a 16-pin SOIC (D) package with exposed pad for thermal enhancement. Pin numbering follows standard D-package top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GNDA (Pin 1) | Ground reference | Return path for IN1, OUT1, OUT2, and associated circuitry |
| IN1 (Pin 2) | Power input | Main supply rail for first two channels (OUT1, OUT2) |
| EN1 (Pin 3) | Enable control | Active-high logic input enabling IN1→OUT1 path |
| EN2 (Pin 4) | Enable control | Active-high logic input enabling IN1→OUT2 path |
| GNDB (Pin 5) | Ground reference | Return path for IN2, OUT3, OUT4, and associated circuitry |
| IN2 (Pin 6) | Power input | Second supply rail for last two channels (OUT3, OUT4) |
| EN3 (Pin 7) | Enable control | Active-high logic input enabling IN2→OUT3 path |
| EN4 (Pin 8) | Enable control | Active-high logic input enabling IN2→OUT4 path |
| OC4 (Pin 9) | Fault indicator | Open-drain output asserted low during overcurrent/overtemperature on OUT4 |
| OUT4 (Pin 10) | Switched output | High-side switched output for fourth channel (IN2→OUT4) |
| OUT3 (Pin 11) | Switched output | High-side switched output for third channel (IN2→OUT3) |
| OC3 (Pin 12) | Fault indicator | Open-drain output asserted low during overcurrent/overtemperature on OUT3 |
| OC2 (Pin 13) | Fault indicator | Open-drain output asserted low during overcurrent/overtemperature on OUT2 |
| OUT2 (Pin 14) | Switched output | High-side switched output for second channel (IN1→OUT2) |
| OUT1 (Pin 15) | Switched output | High-side switched output for first channel (IN1→OUT1) |
| OC1 (Pin 16) | Fault indicator | Open-drain output asserted low during overcurrent/overtemperature on OUT1 |
Key Features
| Feature | Design Value |
|---|---|
| Independent thermal shutdown per channel | Enables fault isolation: one shorted port does not disable remaining three USB ports |
| Charge-pump gate drive | Ensures full enhancement of N-channel MOSFETs down to 2.7 V input without external components |
| Active-high enable inputs | Direct interface with microcontroller GPIOs without level-shifting or inverters |
| Open-drain OCx outputs | Allows wired-OR fault bus implementation across multiple TPS2054AD devices for centralized monitoring |
| Bidirectional current limiting | Prevents reverse current flow during hot-swap events and ensures safe load disconnection |
Applications
| USB 2.0 Hub Power Management | Industrial I/O Module Protection |
|---|---|
Use Scenario: Four-port USB 2.0 hub supplying power to peripherals including keyboards, mice, and flash drives. IC Role / Device Role / Timing Role: Quad-channel high-side switch providing individually controllable +5 V distribution with inrush limiting and short-circuit isolation. Use Value: Prevents single-port short from collapsing entire hub rail; OCx signals enable firmware-level port disable and recovery. | Use Scenario: Programmable logic controller (PLC) digital output module driving solenoids, relays, and sensors. IC Role / Device Role / Timing Role: Current-limited power switch protecting field-side 24 V DC outputs against wiring faults and inductive kickback. Use Value: Limits fault current to safe 500 mA per channel while sustaining 2.7–5.5 V logic compatibility with PLC backplane controllers. |
| Embedded System Multi-Rail Sequencing | Medical Diagnostic Equipment Power Gating |
Use Scenario: FPGA-based imaging platform requiring staggered power-up of sensor bias, ADC, and interface rails. IC Role / Device Role / Timing Role: Independent enable-controlled switching of four isolated 3.3 V/5 V subsystems with controlled rise times. Use Value: Eliminates need for discrete MOSFETs, gate drivers, and current-sense resistors - reducing BOM count and layout area by >60%. | Use Scenario: Portable ultrasound device with battery-backed subsystems requiring strict power domain isolation during standby. IC Role / Device Role / Timing Role: Low-quiescent-current (20 µA) power gate for non-critical subsystems like display backlight and audio codec. Use Value: Extends battery life by cutting leakage paths while retaining fast wake-up (<20 ms turn-on) and fault reporting via OCx pins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power-distribution switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2044AD | Same quad-channel SOIC-16 package but active-low enable inputs; identical rDS(on), current rating, and protection features | Requires inverted logic control signal; unsuitable where MCU GPIOs lack open-drain or inversion capability | Select when existing firmware or hardware uses active-low enable signaling and no level translation is desired |
| TPS2052AD | Dual-channel version in SOIC-8; shares same active-high enables, 500 mA rating, and 80-mΩ rDS(on), but half the channel count | Applicable only where exactly two independently protected loads are needed - not scalable to four loads | Choose for space-constrained dual-load designs where footprint and cost optimization outweigh channel count needs |
Compared with TPS2054AD, TPS2044AD requires logic inversion for enable control but offers identical protection and performance, while TPS2052AD reduces channel count and package size at the expense of system-level scalability - both alternatives retain the same 2.7–5.5 V operation, thermal response, and OCx fault signaling behavior.
Availability
TPS2054AD is available at Aetrix Electronics and suitable for USB peripheral design, industrial I/O protection, and embedded multi-rail power sequencing requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS2054AD includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
The TPS205xA family was engineered specifically for robust, low-voltage power distribution in USB-compliant and hot-swap-capable systems - emphasizing independent channel control, minimal external components, and fail-safe fault handling.
FAQ
What is the maximum continuous current per channel for the TPS2054AD?
The TPS2054AD supports 500 mA continuous current per channel under recommended operating conditions (VI(IN) = 2.7 V to 5.5 V, TA = 0°C to 85°C). This rating is maintained across all four channels simultaneously, provided junction temperature remains within 125°C and PCB thermal design meets SOIC-16 dissipation requirements (≤584 mW at 85°C ambient).
Does the TPS2054AD require external components for gate drive?
No, the TPS2054AD integrates a charge pump that generates sufficient gate voltage to fully enhance its internal N-channel MOSFETs - eliminating the need for external capacitors or boost circuits. This allows reliable operation from as low as 2.7 V input while maintaining 80-mΩ on-resistance and controlled 2.5-ms rise time.
How does the TPS2054AD respond to a short-circuit event on one channel?
When a short occurs on any channel, the TPS2054AD immediately enters constant-current mode (0.9 A typical trip), pulling the corresponding OCx pin low. If sustained, thermal sensing triggers individual channel shutdown at ~140°C, with automatic recovery after ~20°C cooldown - all without affecting operation of the other three channels.
Can the TPS2054AD be used with 3.3 V logic enable signals?
Yes, the TPS2054AD's ENx inputs are CMOS- and TTL-compatible with VIH(min) = 2.0 V (at VI(IN) ≥ 2.7 V), ensuring reliable activation using standard 3.3 V microcontroller GPIOs. No level-shifting circuitry is required, and input current remains below ±0.5 µA across temperature.
What is the purpose of separate GNDA and GNDB pins on the TPS2054AD?
GNDA (Pin 1) and GNDB (Pin 5) provide isolated ground returns for the two independent input domains: IN1 powers OUT1/OUT2 (GNDA referenced), while IN2 powers OUT3/OUT4 (GNDB referenced). This separation prevents ground-loop coupling between channels and supports mixed-voltage or noise-sensitive multi-rail architectures.
TPS2054AD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 4
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 500mA
- Rds On (Typ):
- 80mOhm
- Input Type:
- Non-Inverting
- Features:
- -
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature:
- 0°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
TPS2054AD FAQ
1.How can I place an order for TPS2054AD through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2054AD on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS2054AD reliable?
The price and inventory of TPS2054AD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2054AD is usually 5 days.
3.What payment methods are accepted for TPS2054AD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2054AD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2054AD?
TPS2054AD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2054AD order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS2054AD?
For technical support, including TPS2054AD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2054AD requirements.
6.How does Aetrix verify that TPS2054AD is sourced from the original manufacturer or authorized distributors?
All TPS2054AD products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS2054AD meets industry standards.
7.What is the process for return or replacement of TPS2054AD?
All TPS2054AD units undergo pre-shipment inspection (PSI). If there is an issue with TPS2054AD, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS2054AD part is unused and in its original packaging.
Return procedure for TPS2054AD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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