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Texas Instruments TPS2061DBVT
- Part No.:
- TPS2061DBVT
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS2061DBVT.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:555
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Product details
Overview
TPS2061DBVT 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 is used in USB peripheral ports, hot-swap circuits, and systems requiring controlled inrush current for heavy capacitive loads.
For engineers reviewing the TPS2061DBVT datasheet, TPS2061DBVT pinout, TPS2061DBVT application, or TPS2061DBVT equivalent, key selection criteria include its bidirectional switching capability, 0.6 ms typical rise time, built-in soft-start, undervoltage lockout (UVLO), deglitched OC fault reporting, and 1 μA standby supply current - all critical for reliable power sequencing and fault management in embedded and portable electronics.
Technical Context
The TPS2061DBVT integrates an internal charge pump that drives the gate of its high-side N-channel MOSFET, enabling full enhancement down to 2.7 V input without external components. Its current-limiting architecture operates in constant-current mode during overloads, with no latch-off behavior - recovery is automatic upon fault removal.
Functional block includes UVLO monitoring the IN rail, a precision current-sense FET (not resistor-based) for accurate overload detection, thermal sense circuitry triggering shutdown at 135°C with 10°C hysteresis, and a deglitch filter on the open-drain OC output (4–15 ms) to suppress false fault assertions during power-up or transient events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Output Current | 1 A - supports stable power delivery to USB peripherals, SSDs, and FPGA I/O banks without derating at 85°C ambient. |
| rDS(on) | 70 mΩ (typ, 5 V) - minimizes conduction loss (≤70 mW at 1 A), reducing thermal stress and PCB copper requirements. |
| Current Limit Threshold | 1.1 A min / 1.9 A max - ensures robust short-circuit protection across voltage/temperature while avoiding nuisance tripping under peak load transients. |
| Rise Time | 0.6 ms (typ, 5.5 V) - controls inrush dv/dt to limit surge current into 100 µF+ capacitive loads, easing EMI filtering design. |
| Supply Current (Standby) | 1 µA max - enables ultra-low-power system sleep states without compromising fast wake-up response via EN pin. |
| Operating Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion (3.0–4.2 V), USB 5 V, and 3.3 V logic rails without level-shifting. |
| Thermal Shutdown | 135°C junction - protects against sustained overload or poor heatsinking; auto-recovery at 125°C ensures graceful re-engagement after cooling. |
Pinout & Package
SOT-23-5 (DBV) package with exposed PowerPAD™ thermally connected to GND; compact footprint (2.92 mm × 1.6 mm) suitable for space-constrained USB Type-A/B/C ports and portable device power rails.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Power input | Connects to upstream 2.7–5.5 V supply; feeds internal charge pump and power switch source. |
| OUT | Switched power output | Delivers controlled current to load; isolated from IN when disabled; bidirectional blocking capability. |
| EN | Enable input (active-high for TPS2061) | TTL/CMOS-compatible; logic high ≥2 V enables switch; low ≤0.8 V disables with <1 µA quiescent draw. |
| OC | Open-drain overcurrent flag | Active-low fault indicator; deglitched (4–15 ms); requires external pull-up for MCU interrupt or status monitoring. |
| GND | Ground reference | Common return for power, control, and thermal path; PowerPAD™ must be soldered to PCB GND plane for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in soft-start | Controls output voltage slew rate to limit inrush current into large bulk capacitance (e.g., 100 µF), eliminating need for external RC networks. |
| Accurate current limit | Guaranteed 1.1–1.9 A trip window ensures predictable fault response across temperature and supply voltage - critical for safety-critical load isolation. |
| No OC glitch during power-up | Internal deglitching prevents false fault assertion when IN ramps or EN toggles, avoiding spurious system resets or log entries. |
| UL listed (E169910) | Meets UL 60950-1 end-equipment safety requirements for primary-side power switching - simplifies regulatory certification for commercial/industrial designs. |
| Undervoltage lockout (UVLO) | Disables output below ~2.3 V (rising) with 75 mV hysteresis, preventing erratic operation during brownout or battery depletion. |
Applications
| USB Peripheral Port Protection | Hot-Swap Power Sequencing |
|---|---|
Use Scenario: Protecting downstream USB devices (keyboards, hubs, storage) from short circuits or overloads on shared 5 V bus. IC Role / Device Role / Timing Role: High-side power switch controlling VBUS delivery; enables/disables per-port power under MCU supervision. Use Value: Prevents host port shutdown during cable faults; maintains system-level USB enumeration integrity and avoids cascading bus failures. | Use Scenario: Safely inserting/removing add-in cards or modules into live backplanes or docking stations. IC Role / Device Role / Timing Role: Controlled power ramp generator with soft-start and current limiting; coordinates with system supervisor for staged power enable. Use Value: Eliminates arcing and contact bounce damage; ensures clean power-up sequence without disrupting main system operation. |
| Capacitive Load Management | Embedded System Power Isolation |
Use Scenario: Driving FPGA I/O banks, DDR memory termination, or LCD bias supplies with >50 µF local capacitance. IC Role / Device Role / Timing Role: Inrush current limiter and steady-state current monitor; provides OC feedback for firmware-based fault logging. Use Value: Avoids voltage droop on shared rails; reduces required input bulk capacitance by >30% versus direct connection. | Use Scenario: Isolating subsystems (e.g., radio module, sensor cluster) to contain faults and support independent power cycling. IC Role / Device Role / Timing Role: Standby-mode power gate; controlled via GPIO with 1 µA quiescent draw to preserve battery life. Use Value: Enables firmware-driven power domain management without dedicated PMIC; extends runtime in battery-powered IoT edge nodes. |
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 |
|---|---|---|---|
| TPS2051BDBVT | Same DBV package, 0.5 A rated current, 130 mΩ rDS(on), identical UVLO and OC behavior. | Lower current capacity limits use to low-power peripherals (e.g., mice, sensors); unsuitable for 1 A USB charging or SSDs. | Select when load current ≤500 mA and board space is constrained - drop-in replacement with reduced thermal margin. |
| AP22651AW5-7 | 500 mA rating, 110 mΩ rDS(on), no integrated charge pump (requires ≥4.5 V), no UL listing. | Lacks UVLO and thermal shutdown; OC reporting not deglitched; not certified for safety-critical end equipment. | Acceptable for cost-sensitive, non-safety-certified consumer accessories where full protection features are optional. |
Compared with TPS2061DBVT, TPS2051BDBVT offers identical form-factor and protection but halves current capability, while AP22651AW5-7 sacrifices safety certification, thermal protection, and low-voltage operation for lower BOM cost - making TPS2061DBVT the only choice for robust, certified 1 A power gating.
Availability
TPS2061DBVT is available at Aetrix Electronics and suitable for USB power delivery, hot-swap subsystems, and embedded power isolation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS2061DBVT 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 ICs, with decades of expertise in high-reliability power-switching solutions.
The TPS206x family was designed specifically for robust, low-EMI power distribution in USB-compliant and portable electronics - emphasizing precise current limiting, thermal resilience, and seamless integration with microcontroller-based power management firmware.
FAQ
What is the maximum continuous output current supported by the TPS2061DBVT?
The TPS2061DBVT supports 1 A continuous output current across its full operating temperature range (-40°C to 85°C ambient). This rating is validated with proper PCB thermal design using the PowerPAD™ connected to a minimum 1-inch² GND copper area. Exceeding 1 A may trigger current limiting or thermal shutdown depending on ambient conditions and layout.
Does the TPS2061DBVT require external components for gate drive or current sensing?
No, the TPS2061DBVT integrates an internal charge pump for gate drive and a precision sense FET for current monitoring - eliminating the need for external capacitors, resistors, or op-amps. Only an external pull-up resistor on the OC pin (typically 10 kΩ to 5 V) and proper GND plane connection to the PowerPAD™ are required for basic operation.
How does the overcurrent (OC) pin behave during a short-circuit event on the TPS2061DBVT?
During a short circuit, the TPS2061DBVT enters constant-current mode at ~1.5 A (typical), pulling the OC pin low within 4–15 ms (deglitched). The OC pin remains asserted until the fault clears and the output recovers - it does not latch off permanently. Once the short is removed, the device automatically resumes normal operation without requiring an EN toggle.
Can the TPS2061DBVT operate from a 3.3 V supply rail?
Yes, the TPS2061DBVT operates from 2.7 V to 5.5 V, including standard 3.3 V logic rails. At 3.3 V input, its rDS(on) increases to ≤135 mΩ (D/DGN) or ≤140 mΩ (DBV), resulting in ~135 mW conduction loss at 1 A - still within thermal limits with adequate PCB copper. UVLO remains functional with 2.3 V threshold.
Is the TPS2061DBVT pin-compatible with other devices in the TPS206x family?
No - the TPS2061DBVT (SOT-23-5) is not pin-compatible with multi-channel variants like TPS2062 (8-pin SOIC) or TPS2063 (16-pin SOIC). Even within the DBV package, TPS2061 and TPS2065 share the same pinout but differ in EN polarity (TPS2061 uses active-high EN; TPS2065 uses active-low EN), requiring firmware or schematic review before substitution.
TPS2061DBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- SOT-23-5
TPS2061DBVT FAQ
1.How can I place an order for TPS2061DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2061DBVT 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 TPS2061DBVT reliable?
The price and inventory of TPS2061DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2061DBVT is usually 5 days.
3.What payment methods are accepted for TPS2061DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2061DBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2061DBVT?
TPS2061DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2061DBVT 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 TPS2061DBVT?
For technical support, including TPS2061DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2061DBVT requirements.
6.How does Aetrix verify that TPS2061DBVT is sourced from the original manufacturer or authorized distributors?
All TPS2061DBVT 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 TPS2061DBVT meets industry standards.
7.What is the process for return or replacement of TPS2061DBVT?
All TPS2061DBVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS2061DBVT, 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 TPS2061DBVT part is unused and in its original packaging.
Return procedure for TPS2061DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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