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Texas Instruments TPS2068EDBVR
- Part No.:
- TPS2068EDBVR
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS2068EDBVR.pdf
- Description:
- 1.5-A LOADING 2.7-V TO 5.5-V
- Quantity:
- Payment:
- Shipping:
Inventory:3,681
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Product details
Overview
TPS2068EDBVR from Texas Instruments is a 1.5A current-limited, single-channel power-distribution switch in SOT-23-5 package, designed for USB and peripheral power rail protection. It features ±20% accurate fixed current limiting, 2µs overcurrent response, reverse current blocking, output discharge, and operates across 2.7V–5.5V input rails with –40°C to 85°C ambient range.
For engineers reviewing the TPS2068EDBVR datasheet, TPS2068EDBVR pinout, TPS2068EDBVR application, or TPS2068EDBVR equivalent, this device serves as a compact, thermally robust solution for short-circuit-prone 5V/3.3V load switching in space-constrained consumer and computing systems where predictable fault current and fast fault reporting are critical.
Technical Context
The TPS2068EDBVR integrates an N-channel MOSFET power switch with internal charge pump for gate drive, enabling low RDS(ON) (70–105 mΩ) without external components. Its constant-current limit mode activates when load exceeds 1.5A, maintaining safe fault current regardless of output voltage collapse.
Functional blocks include deglitched active-low FLT reporting (8ms filter), undervoltage lockout (2.6V turn-on threshold with 75mV hysteresis), and soft-start via controlled rise/fall times (0.4–1.5ms). Thermal shutdown engages at 135–175°C during sustained overload, with 10°C hysteresis for recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max continuous current | 1.5 A - fixed current limit ensures predictable fault behavior under short circuit |
| RDS(ON) | 70–105 mΩ - low conduction loss enables efficient 5V/3.3V rail switching |
| Overcurrent response time | 1.5 µs - rapid detection minimizes stress on upstream supply during hard shorts |
| Input voltage range | 2.7 V to 5.5 V - supports USB-compliant and legacy 3.3V/5V system rails |
| Enable logic threshold | VIL ≤ 0.8 V, VIH ≥ 1.8 V - TTL/CMOS-compatible control with noise margin |
| FLT deglitch time | 6–12 ms - prevents false fault assertion during startup transients or ripple |
| Output discharge resistance | 400–810 Ω - safely drains load capacitance when disabled or in UVLO |
| Operating temperature | –40°C to +85°C - qualified for industrial and consumer end-equipment environments |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm footprint with exposed pad not present; thermal performance relies on PCB copper area connected to GND via pin 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Power-switch output | Connects to protected load; sinks up to 1.5A; includes integrated 500Ω discharge path to GND when disabled |
| GND (Pin 2) | Ground reference | Primary return path for power and logic; must be low-impedance connection to system ground plane |
| FLT (Pin 3) | Fault indicator | Active-low open-drain output asserted during overcurrent or overtemperature; requires external pull-up |
| EN/EN (Pin 4) | Enable control | Logic-high (≥1.8 V) enables switch; logic-low (≤0.8 V) disables with <1 µA quiescent current |
| IN (Pin 5) | Power input | Accepts 2.7–5.5 V supply; requires ≥0.1 µF ceramic bypass capacitor placed adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| Fixed current limit accuracy | ±20% tolerance ensures consistent trip point across voltage/temperature without calibration |
| Reverse current blocking | Prevents backflow from OUT to IN when disabled - eliminates need for external blocking diode |
| Built-in soft start | Controlled output rise time (0.4–1.5 ms) limits inrush current into heavy capacitive loads like USB hubs |
| UL Listed & CB File E169910 | Meets safety certification requirements for end-equipment compliance in commercial applications |
| Thermal shutdown with hysteresis | Auto-recovery after 10°C cooldown prevents latch-up during intermittent overload conditions |
Applications
| USB Host Port Protection | Peripheral Power Switching |
|---|---|
Use Scenario: Protecting downstream-facing USB ports in laptops or docking stations against short circuits caused by faulty cables or devices. IC Role / Device Role / Timing Role: Current-limited power switch that isolates the 5V bus during faults while maintaining communication link integrity. Use Value: Prevents host controller reset or brownout by limiting fault current to 1.5A and reporting within 1.5µs via FLT pin. | Use Scenario: Enabling/disabling power to external peripherals such as printers, scanners, or storage drives in PC/notebook systems. IC Role / Device Role / Timing Role: Load switch with controlled turn-on/off timing and output discharge to meet USB BC1.2 and suspend/resume timing requirements. Use Value: Eliminates manual reset needs and ensures clean power sequencing with no residual voltage on disconnected loads. |
| Gaming Console Accessories | Data Center Board-Level Protection |
Use Scenario: Managing power to high-capacitance accessories (e.g., RGB lighting strips, cooling fans) in gaming consoles where hot-plug events risk surge currents. IC Role / Device Role / Timing Role: Fault-tolerant distribution switch with deglitched FLT reporting to avoid false interrupts during transient load changes. Use Value: Enables reliable hot-swap capability without requiring system-level firmware intervention for fault handling. | Use Scenario: Providing individual rail protection for add-in cards or mezzanine modules in enterprise servers where board-level short-circuit resilience is mandatory. IC Role / Device Role / Timing Role: Compact, thermally efficient power switch with UL certification supporting high-reliability infrastructure design. Use Value: Reduces BOM count by replacing discrete FET + driver + protection IC solutions while meeting safety standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power-distribution switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2069EDBVR | Same 1.5A current limit and SOT-23-5 package, but uses active-high enable (EN) instead of active-low (EN) | Requires inverted control signal logic; otherwise identical USB/peripheral use cases | Select when system MCU GPIO defaults to low-active or when synchronizing multiple switches with shared enable polarity |
| TPS2000EDBVR | 2A rated current, same package and feature set, higher RDS(ON) (70–105 mΩ vs. 87 mΩ typ. at 5V) | Supports higher-load peripherals (e.g., powered hubs); less suitable for strict 1.5A-limited designs | Choose when future-proofing for increased load current or when margin above 1.5A is required for derating |
Compared with TPS2068EDBVR, TPS2069EDBVR offers identical protection and packaging but differs only in enable polarity-making it a direct functional alternative where control logic allows inversion-while TPS2000EDBVR provides higher current capacity at the cost of slightly reduced efficiency, serving applications needing headroom beyond 1.5A.
Availability
TPS2068EDBVR is available at Aetrix Electronics and suitable for USB host port protection, peripheral power switching, gaming console accessory management, and data center board-level protection requiring stable component supply and long-term manufacturability.
Supply support for TPS2068EDBVR 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for industrial, automotive, and consumer markets.
The TPS20xxE family was developed specifically for USB-compliant and general-purpose power-distribution applications demanding robust short-circuit protection, predictable current limiting, and minimal external component count in compact packages.
FAQ
What is the maximum input voltage rating for the TPS2068EDBVR?
The TPS2068EDBVR has an absolute maximum input voltage rating of 6 V. However, its recommended operating range is 2.7 V to 5.5 V. Operation above 5.5 V risks permanent damage and violates the device's specified safe operating area, even if brief. The TPS2068EDBVR is intended for standard USB and low-voltage logic rails-not for higher-voltage industrial supplies.
Does the TPS2068EDBVR require an external pull-up resistor on the FLT pin?
Yes, the TPS2068EDBVR FLT pin is an active-low open-drain output and requires an external pull-up resistor to a valid logic-high voltage (e.g., 3.3 V or 5 V). Typical values range from 4.7 kΩ to 10 kΩ. Without this resistor, the FLT signal cannot assert a defined high state during normal operation, compromising fault monitoring functionality in the host system.
How does the TPS2068EDBVR handle reverse current flow from output to input?
The TPS2068EDBVR provides inherent reverse current blocking when disabled or in UVLO - no external diode is needed. This is achieved through internal circuitry that disconnects the N-channel MOSFET's body diode path. Reverse leakage is specified at 0 µA (typical) when VOUT = 5.5 V and IN is grounded, ensuring zero backfeed into upstream supplies during standby or fault conditions.
Can the TPS2068EDBVR be used in automotive applications?
The TPS2068EDBVR is not AEC-Q200 qualified and is rated for –40°C to +85°C ambient operation - suitable for commercial and industrial environments but not for under-hood automotive use. Its thermal shutdown threshold (135–175°C) and lack of automotive-grade qualification make it inappropriate for direct deployment in automotive power domains without additional system-level validation and derating.
What is the typical RDS(ON) of the TPS2068EDBVR at 3.3V input and 25°C junction temperature?
At 3.3 V input and 25°C junction temperature, the TPS2068EDBVR exhibits a typical RDS(ON) of 70 mΩ, with a maximum of 105 mΩ across –40°C to +125°C. This value is confirmed in Section 6.5 of the datasheet under "POWER SWITCH (TPS2068E, TPS2069E)" test conditions, ensuring low conduction loss and minimal voltage drop (<105 mV at 1.5 A) in 3.3V rail applications.
TPS2068EDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- -
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1.5A
- Rds On (Typ):
- 70mOhm
- Input Type:
- Non-Inverting
- Features:
- Output Discharge
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS2068EDBVR FAQ
1.How can I place an order for TPS2068EDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2068EDBVR 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 TPS2068EDBVR reliable?
The price and inventory of TPS2068EDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2068EDBVR is usually 5 days.
3.What payment methods are accepted for TPS2068EDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2068EDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2068EDBVR?
TPS2068EDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2068EDBVR 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 TPS2068EDBVR?
For technical support, including TPS2068EDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2068EDBVR requirements.
6.How does Aetrix verify that TPS2068EDBVR is sourced from the original manufacturer or authorized distributors?
All TPS2068EDBVR 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 TPS2068EDBVR meets industry standards.
7.What is the process for return or replacement of TPS2068EDBVR?
All TPS2068EDBVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS2068EDBVR, 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 TPS2068EDBVR part is unused and in its original packaging.
Return procedure for TPS2068EDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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