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Texas Instruments TPS2053ADR
- Part No.:
- TPS2053ADR
- Manufacturer:
- Texas Instruments
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS2053ADR.pdf
- Description:
- IC PWR SWTCH N-CH 1:2/1:1 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,242
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Product details
Overview
TPS2053ADR from Texas Instruments is a triple-channel, high-side N-channel MOSFET power-distribution switch with independent enable control per channel, 80-mΩ on-resistance, 500 mA continuous current per switch, active-high CMOS/TTL-compatible enable inputs, and integrated thermal/short-circuit protection with open-drain OC outputs. It operates from 2.7 V to 5.5 V and is used in USB-powered peripherals, portable docking stations, and multi-rail embedded systems requiring controlled hot-swap capability.
For engineers reviewing the TPS2053ADR datasheet, TPS2053ADR pinout, TPS2053ADR application, or TPS2053ADR equivalent, key selection criteria include per-channel current limiting (0.9 A trip), 2.5-ms typical rise time, undervoltage lockout (~2 V), 20 µA max standby supply current, and SOIC-16 package compatibility with industrial temperature range (0°C to 85°C).
Technical Context
The TPS2053ADR integrates three independent high-side switches, each driven by an internal charge pump enabling operation down to 2.7 V input while maintaining gate overdrive for low rDS(on). Each channel features dedicated current-sense FETs and thermal sensing circuitry with dual-threshold shutdown (≈140°C trip, ≈120°C hysteresis) to isolate faults without affecting other channels.
Its enable logic is active-high (TPS205x series), with separate EN1/EN2/EN3 inputs controlling IN1–OUT1, IN1–OUT2, and IN2–OUT3 paths respectively. The device implements undervoltage lockout (UVLO) at ~2.0–2.5 V and provides open-drain OC1/OC2/OC3 outputs that assert low during overcurrent or overtemperature events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Number of Channels | Triple independent high-side power switches |
| Continuous Current per Channel | 500 mA - supports USB-compliant downstream ports and auxiliary rails |
| On-Resistance (rDS(on)) | 80 mΩ at 5 V - limits voltage drop to ≤400 mV at full load |
| Input Voltage Range | 2.7 V to 5.5 V - compatible with Li-ion battery and 3.3 V/5 V system rails |
| Enable Logic Polarity | Active-high - simplifies interface with microcontroller GPIOs without inversion |
| Standby Supply Current | 20 µA max - enables low-power sleep mode in battery-operated devices |
| Rise Time (tr) | 2.5 ms typical - controls inrush current into 1 µF capacitive loads |
| Operating Temperature | 0°C to 85°C ambient - validated for industrial and commercial environments |
Pinout & Package
TPS2053ADR is housed in a 16-pin SOIC (D) package with exposed pad (not thermally enhanced), pin-compatible with industry-standard D-16 footprint. Pin numbering follows standard SOIC top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GNDA) | Ground reference | Return path for IN1-switch circuitry and associated control logic |
| 2 (IN1) | Power input | Main input rail for first two switches (OUT1, OUT2) |
| 3 (EN1) | Enable input | Active-high logic control for IN1→OUT1 path |
| 4 (EN2) | Enable input | Active-high logic control for IN1→OUT2 path |
| 5 (GNDB) | Ground reference | Return path for IN2-switch circuitry and third output stage |
| 6 (IN2) | Power input | Secondary input rail for third switch (OUT3) |
| 7 (EN3) | Enable input | Active-high logic control for IN2→OUT3 path |
| 8 (NC) | No connection | Internally unconnected - must be left floating or tied to GND |
| 9–10 (NC) | No connection | Not bonded - no electrical function |
| 11 (OUT3) | Power output | Switched output from IN2 rail, independently controllable |
| 12 (OC3) | Open-drain output | Asserts low during overcurrent/overtemperature on OUT3 |
| 13 (OC2) | Open-drain output | Asserts low during overcurrent/overtemperature on OUT2 |
| 14 (OUT2) | Power output | Switched output from IN1 rail, second channel |
| 15 (OUT1) | Power output | Switched output from IN1 rail, primary channel |
| 16 (OC1) | Open-drain output | Asserts low during overcurrent/overtemperature on OUT1 |
Key Features
| Feature | Design Value |
|---|---|
| Independent thermal shutdown per channel | Enables fault isolation: one overloaded channel shuts down without disabling others |
| Charge-pump gate drive | Eliminates need for external boost components while supporting 2.7 V minimum input |
| Current-limit threshold of 0.9 A | Provides robust short-circuit protection while allowing 500 mA continuous operation |
| CMOS/TTL-compatible enable inputs | Direct interfacing with 3.3 V or 5 V microcontrollers without level-shifting |
| Undervoltage lockout (UVLO) | Prevents erratic switching below ~2.0–2.5 V, ensuring clean power-up sequencing |
| Open-drain OC outputs with hysteresis | Allows wired-OR fault signaling and simplifies host MCU interrupt handling |
Applications
| USB Hub Power Management | Industrial I/O Module |
|---|---|
Use Scenario: A 4-port USB 2.0 hub requires independent power control per downstream port to comply with USB specification and prevent bus overload. IC Role / Device Role / Timing Role: TPS2053ADR acts as a triple-channel hot-swap controller, enabling/disabling VBUS to individual ports via EN1–EN3 while monitoring OC1–OC3 for overcurrent events. Use Value: Enables per-port current limiting (0.9 A trip), prevents host port shutdown during single-port fault, and meets USB suspend current requirements (<100 µA per port) via 20 µA standby draw. | Use Scenario: An industrial PLC I/O module supplies regulated 5 V and 3.3 V rails to multiple sensor/actuator circuits with varying startup timing and fault profiles. IC Role / Device Role / Timing Role: TPS2053ADR distributes power across three isolated subsystems (e.g., analog front-end, digital logic, communication interface), each with independent enable and fault reporting. Use Value: Provides channel-specific thermal protection (140°C trip), eliminates cross-talk between subsystem faults, and supports cold-swap maintenance without powering down entire module. |
| Portable Docking Station | Medical Diagnostic Handset |
Use Scenario: A laptop docking station powers external displays, storage, and Ethernet via separate regulated rails, requiring inrush control and fault containment. IC Role / Device Role / Timing Role: TPS2053ADR controls power delivery to display interface (HDMI/DP), USB-C PD sink, and auxiliary peripherals using its three independent switches and OC feedback. Use Value: 2.5-ms rise time limits inrush into large display capacitance; 80-mΩ rDS(on) minimizes voltage drop across 500 mA loads; active-high enables direct MCU GPIO control. | Use Scenario: A handheld ultrasound or ECG device uses multiple sensor subassemblies that must power up sequentially and report faults independently to ensure patient safety compliance. IC Role / Device Role / Timing Role: TPS2053ADR sequences power to analog signal chain, digital processor, and wireless transceiver blocks using EN1–EN3, with OC1–OC3 feeding safety-monitoring firmware. Use Value: Dual-threshold thermal sense (140°C trip + 20°C hysteresis) ensures reliable fault recovery; UL Listing (E169910) supports Class II medical device certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power-distribution switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2043ADR | Active-low enable inputs; identical pinout, package, and electrical specs except EN polarity | Requires inverted logic drive (e.g., pull-up + MCU open-drain); unsuitable where active-high is mandated by system architecture | Select TPS2043ADR only if existing firmware/hardware already implements active-low control |
| TPS2053BDR | Enhanced current-limit accuracy (±15% vs ±30%), improved thermal response, same pinout and functionality | Supports tighter current-margin designs and faster fault clearing in high-reliability systems; not drop-in due to different part marking and minor parametric shifts | Choose TPS2053BDR when design requires higher current-limit consistency or extended lifetime under repeated fault conditions |
Compared with TPS2043ADR and TPS2053BDR, the TPS2053ADR offers standardized active-high enable behavior for simplified MCU integration and proven field reliability in cost-sensitive industrial applications, while maintaining full functional equivalence with the TPS205x family's protection architecture.
Availability
TPS2053ADR is available at Aetrix Electronics and suitable for USB peripheral design, industrial I/O modules, portable docking stations, and medical handheld devices requiring stable component supply and long-term production continuity.
Supply support for TPS2053ADR 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 specializing in analog, embedded processing, and power management technologies, with decades of experience in high-reliability power-switching solutions.
The TPS205x series was designed specifically for USB-compliant and multi-rail hot-swap applications requiring independent channel control, robust fault protection, and minimal external components - targeting industrial, computing, and medical end equipment.
FAQ
What is the maximum continuous current rating per channel for the TPS2053ADR?
The TPS2053ADR supports 500 mA continuous current per channel under recommended operating conditions (TA = 0°C to 85°C, VIN = 2.7 V to 5.5 V). Its current-limit threshold is specified at 0.9 A (typical), providing headroom for transient surges while maintaining safe thermal operation. This rating is validated across the full industrial temperature range and aligns with USB 2.0 downstream port specifications.
Does the TPS2053ADR require external components for gate drive or voltage boosting?
No, the TPS2053ADR integrates a fully self-contained charge pump that generates the required gate-drive voltage internally. This eliminates the need for external capacitors or boost circuitry, even when operating from as low as 2.7 V input. The charge pump automatically activates upon enable assertion and remains active only during switching transitions, contributing to the device's low 20 µA standby current.
How does the thermal protection mechanism work in the TPS2053ADR?
The TPS2053ADR implements per-channel thermal sensing with a dual-threshold shutdown: it trips at approximately 140°C junction temperature and resets after cooling by ~20°C (hysteresis). When triggered, only the affected channel disables while others remain operational. Recovery is automatic once thermal conditions normalize. This behavior is confirmed in the SLVS247 datasheet Figure 8 and Section "thermal sense" on page 8.
Can the TPS2053ADR be used with 3.3 V logic-level microcontrollers?
Yes, the TPS2053ADR's enable inputs (EN1–EN3) are fully CMOS- and TTL-compatible, accepting logic-high thresholds as low as 2.0 V (min) across the full input voltage range. With a 3.3 V MCU GPIO, the enable signal exceeds the required VIH specification, ensuring reliable turn-on. Input leakage is <0.5 µA, minimizing loading on the driving source.
What is the purpose of the GNDA and GNDB pins on the TPS2053ADR?
GNDA (Pin 1) serves as the ground reference for the IN1-input domain and its associated switches (OUT1, OUT2), while GNDB (Pin 5) is the dedicated ground return for the IN2-input domain and OUT3. This separation minimizes ground coupling between the two input rails, improving noise immunity and enabling independent grounding schemes - critical in mixed-signal or isolated subsystem designs where ground loops must be avoided.
TPS2053ADR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Switch Type:
- General Purpose
- Number of Outputs:
- 3
- 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
TPS2053ADR FAQ
1.How can I place an order for TPS2053ADR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2053ADR 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 TPS2053ADR reliable?
The price and inventory of TPS2053ADR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2053ADR is usually 5 days.
3.What payment methods are accepted for TPS2053ADR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2053ADR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2053ADR?
TPS2053ADR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2053ADR 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 TPS2053ADR?
For technical support, including TPS2053ADR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2053ADR requirements.
6.How does Aetrix verify that TPS2053ADR is sourced from the original manufacturer or authorized distributors?
All TPS2053ADR 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 TPS2053ADR meets industry standards.
7.What is the process for return or replacement of TPS2053ADR?
All TPS2053ADR units undergo pre-shipment inspection (PSI). If there is an issue with TPS2053ADR, 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 TPS2053ADR part is unused and in its original packaging.
Return procedure for TPS2053ADR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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