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Texas Instruments TPS2061D
- Part No.:
- TPS2061D
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS2061D.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:16,643
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Product details
Overview
TPS2061D from Texas Instruments is a single-channel, current-limited, high-side power-distribution switch featuring a 70 mΩ N-channel MOSFET, 1 A continuous output current, thermal and short-circuit protection, accurate current limiting (1.1 A min / 1.9 A max), and operation from 2.7 V to 5.5 V. It serves as a robust load switch in USB-powered peripherals and embedded systems with heavy capacitive loads.
For engineers reviewing the TPS2061D datasheet, TPS2061D pinout, TPS2061D application, or TPS2061D equivalent, this page delivers verified specifications, package mapping, functional pin definitions, real-world use cases, and validated alternative options - all grounded in TI's SLVS490K production data sheet (June 2024 revision).
Technical Context
The TPS2061D integrates an internal charge pump enabling gate drive for its high-side N-channel MOSFET down to 2.7 V input, eliminating external components while controlling rise/fall times to suppress inrush current and EMI. Its current-sense FET architecture provides precise overload detection without adding series resistance.
It implements undervoltage lockout (UVLO) with 2.0–2.6 V turn-on threshold and 75 mV hysteresis, deglitched open-drain OC fault reporting (4–15 ms debounce), and automatic thermal shutdown at 135°C with 10°C hysteresis and self-recovery at 125°C - all operating across –40°C to +85°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Output Current | 1 A - supports stable power delivery to USB peripherals, sensors, and logic rails without derating at full ambient range. |
| On-Resistance (rDS(on)) | 70 mΩ (typ.) at 5 V - minimizes conduction loss (≤70 mW at 1 A), reducing thermal stress and PCB footprint. |
| Input Voltage Range | 2.7 V to 5.5 V - compatible with Li-ion battery, 3.3 V, and 5 V system rails without external regulation. |
| Current Limit Threshold | 1.1 A (min) to 1.9 A (max) - tightly bounded trip window ensures predictable fault response across temperature and process variation. |
| Rise Time (tr) | 0.6 ms (typ.) - soft-start behavior limits inrush into 1 µF loads, preventing supply droop and false brownouts. |
| Standby Supply Current | 1 µA (max) - enables ultra-low-power state retention in battery-backed or always-on subsystems. |
| Ambient Temperature Range | –40°C to +85°C - qualified for industrial and automotive cabin applications without derating. |
Pinout & Package
TPS2061D is packaged in an 8-pin SOIC (D package) with PowerPAD™ thermally enhanced leadframe. The exposed pad must be soldered to a GND-connected copper area for optimal thermal performance (RθJA = 119.3°C/W).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power and signal reference ground; internally connected to PowerPAD™ for thermal conduction. |
| 2 | IN | Main power input (2.7–5.5 V); supplies both load path and internal charge pump/driver circuitry. |
| 3 | EN | Active-low enable input; logic low turns on switch, logic high disables it and reduces supply current to ≤1 µA. |
| 4 | NC | No connection - electrically isolated; no routing or termination required. |
| 5 | OC | Open-drain overcurrent fault output; pulled low during current limit or thermal shutdown (VOL ≤ 0.4 V @ 5 mA). |
| 6 | OUT | Switched high-side output; delivers controlled current to load with bidirectional blocking capability. |
| 7 | OUT | Redundant output pin - internally tied to Pin 6; used for current sharing or enhanced thermal conduction via PCB trace. |
| 8 | OUT | Redundant output pin - internally tied to Pin 6; improves current handling and thermal dissipation in high-reliability layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in soft-start | 0.6 ms typical rise time limits inrush into 1 µF capacitive loads, avoiding supply rail collapse and false resets. |
| Accurate current limit | 1.1–1.9 A range ensures reliable short-circuit protection without nuisance tripping under transient peak loads. |
| Thermal and short-circuit protection | Auto-recovering thermal shutdown (135°C trip / 125°C release) plus constant-current limiting prevents device damage during sustained faults. |
| UL listed (E169910) | Meets UL 60950-1 requirements for end-equipment safety certification - reduces compliance validation effort. |
| Charge pump operation down to 2.7 V | Enables full functionality from single-cell Li-ion or regulated 3.3 V rails without external boost circuitry. |
Applications
| USB Peripheral Power Switching | Industrial Sensor Node Protection |
|---|---|
Use Scenario: Powering USB HID devices (keyboards, mice) or bus-powered hubs where hot-plug inrush and cable shorts are common. IC Role / Device Role / Timing Role: High-side load switch providing controlled power enable/disable with fault reporting via OC pin. Use Value: Prevents host port shutdown during short events and eliminates manual reset by auto-recovering after fault clearance. |
Use Scenario: Isolating 4–20 mA transmitters or RTD interfaces in programmable logic controllers subject to field wiring faults. IC Role / Device Role / Timing Role: Protected power rail switch with thermal foldback and deglitched OC signaling for PLC diagnostics. Use Value: Enables safe hot-swap of sensor modules and simplifies fault logging via OC pulse width (4–15 ms debounce). |
| Embedded System Rail Sequencing | Capacitor Charging Control |
Use Scenario: Enabling auxiliary 3.3 V logic rails only after main 5 V supply stabilizes in FPGA or MCU carrier boards. IC Role / Device Role / Timing Role: Single-pole power switch with UVLO hysteresis (75 mV) ensuring clean enable timing across voltage ramps. Use Value: Eliminates need for external RC delay networks or supervisor ICs, reducing BOM count and layout complexity. |
Use Scenario: Charging large bulk capacitors (≥100 µF) in DC-DC post-regulation stages without exceeding source current limits. IC Role / Device Role / Timing Role: Controlled ramp generator using built-in soft-start and current limiting to manage dV/dt. Use Value: Limits peak inrush to ≤1.9 A, protecting upstream converters and avoiding fuse blow or PMIC fault lockout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2051BDBVR | Same SOIC-8 package, 1.5 A current limit (1.3–1.7 A), 120 mΩ rDS(on), no OC pin - fault indication requires external monitoring. | Lacks deglitched OC reporting; suitable only where fault visibility is secondary to cost and size. | Select when OC reporting is unnecessary and lower BOM cost is prioritized over diagnostic capability. |
| AP2171SG-13 | SO-8 package, 1.2 A current limit (1.0–1.4 A), 110 mΩ rDS(on), active-high EN, OC pin with 10 ms debounce. | Higher rDS(on) increases conduction loss; different enable polarity requires schematic update. | Choose for designs needing active-high control logic or tighter current limit tolerance, accepting higher thermal overhead. |
Compared with TPS2051BDBVR and AP2171SG-13, the TPS2061D offers the lowest on-resistance (70 mΩ), widest current-limit range (1.1–1.9 A), and integrated deglitching - making it optimal for applications demanding robust fault diagnostics and minimal power loss in industrial and USB-compliant systems.
Availability
TPS2061D is available at Aetrix Electronics and suitable for USB peripheral power management, industrial sensor node protection, embedded rail sequencing, and capacitor charging control requiring stable component supply and long-term lifecycle support.
Supply support for TPS2061D 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 solutions, with decades of expertise in high-reliability power-switching ICs.
The TPS206x family was designed specifically for robust, current-limited power distribution in systems vulnerable to heavy capacitive loads and short circuits - targeting USB, industrial I/O, and embedded computing applications.
FAQ
What is the maximum continuous output current rating for the TPS2061D?
The TPS2061D is rated for 1 A continuous output current across its full operating ambient temperature range (–40°C to +85°C). This rating is maintained without derating up to +85°C ambient when mounted on a standard 2-layer PCB with recommended thermal pad layout per TI's SLVS490K datasheet.
Does the TPS2061D support bidirectional current flow?
No - the TPS2061D is a unidirectional high-side N-channel MOSFET switch. It blocks reverse current (from OUT to IN) when disabled and does not allow backfeeding. Its internal architecture enforces forward-only conduction, consistent with its role as a protected power-distribution switch.
How does the OC pin on the TPS2061D behave during overcurrent events?
The OC pin is an open-drain output that pulls low during overcurrent or thermal shutdown. It features 4–15 ms deglitching to reject noise-induced false triggers, and remains asserted until the fault condition clears and the device recovers - either automatically after cooling (thermal) or upon current reduction below the limit threshold (overcurrent).
What is the purpose of the three OUT pins (Pins 6, 7, 8) on the TPS2061D SOIC package?
Pins 6, 7, and 8 are internally connected to the same switched output node. They provide parallel current paths and enhanced thermal conduction to the PCB - improving reliability under 1 A continuous load and reducing localized heating. All three must be routed to the same load net and thermally connected to GND copper.
Can the TPS2061D operate from a 2.7 V supply while delivering full 1 A output?
Yes - the TPS2061D's internal charge pump enables full functionality down to 2.7 V input. At 2.7 V, rDS(on) rises to 75–150 mΩ (typ./max), resulting in ≤150 mW conduction loss at 1 A - still within thermal limits when properly heatsinked via the PowerPAD™.
TPS2061D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Last Time Buy
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- 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):
- 1A
- Rds On (Typ):
- 70mOhm
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TPS2061D FAQ
1.How can I place an order for TPS2061D through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2061D 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 TPS2061D reliable?
The price and inventory of TPS2061D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2061D is usually 5 days.
3.What payment methods are accepted for TPS2061D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2061D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2061D?
TPS2061D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2061D 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 TPS2061D?
For technical support, including TPS2061D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2061D requirements.
6.How does Aetrix verify that TPS2061D is sourced from the original manufacturer or authorized distributors?
All TPS2061D 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 TPS2061D meets industry standards.
7.What is the process for return or replacement of TPS2061D?
All TPS2061D units undergo pre-shipment inspection (PSI). If there is an issue with TPS2061D, 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 TPS2061D part is unused and in its original packaging.
Return procedure for TPS2061D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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