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Texas Instruments TPS5410DR
- Part No.:
- TPS5410DR
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS5410DR.pdf
- Description:
- IC REG BUCK ADJ 1A 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:195
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Product details
Overview
TPS5410DR from Texas Instruments is a 1-A, wide-input (5.5 V to 36 V), internally compensated step-down DC/DC converter with an integrated 110 mΩ high-side N-channel MOSFET. It delivers regulated output down to 1.22 V with 1.5% initial accuracy, operates at fixed 500 kHz switching frequency, and supports industrial temperature range (–40°C to 125°C). It is used in 12 V/24 V distributed power systems requiring compact, efficient local regulation.
For engineers reviewing the TPS5410DR datasheet, TPS5410DR pinout, TPS5410DR application, or TPS5410DR equivalent, key selection considerations include input voltage feedforward for line transient immunity, internal slow-start (8 ms typical) to limit inrush, hiccup-mode overcurrent protection, thermal shutdown (135°C trip), and SOIC-8 package compatibility with standard PCB assembly processes.
Technical Context
The TPS5410DR implements voltage-mode PWM control with integrated voltage feed-forward, enabling constant power-stage gain across input voltage variations and improving line regulation and transient response. Its internal compensation network eliminates external compensation components while maintaining stability with standard output filter configurations (10–100 μH inductors, low-ESR capacitors).
It integrates undervoltage lockout (5.3 V rising threshold, 330 mV hysteresis), active-high enable with 1.3 V turn-on/0.5 V turn-off thresholds, and cycle-by-cycle overcurrent limiting with hiccup recovery. The BOOT-to-PH bootstrap circuit supplies gate drive for the integrated high-side MOSFET using a 0.01 μF ceramic capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5.5 V to 36 V - Supports direct connection to 12 V and 24 V industrial/bus rails without pre-regulation. |
| Output Current | 1 A continuous / 1.2 A peak - Sustains full load under worst-case thermal conditions (TJ ≤ 125°C). |
| Switching Frequency | Fixed 500 kHz - Enables small magnetics (e.g., 68 μH inductor) and reduces output ripple without external frequency programming. |
| Feedback Reference | 1.221 V ±1.5% - Sets minimum adjustable output; enables precise 12 V, 5 V, or 3.3 V regulation via resistor divider. |
| High-Side RDS(on) | 110 mΩ typical at VIN = 12 V - Delivers ≥95% efficiency at 1 A, reducing thermal load vs discrete FET solutions. |
| Thermal Shutdown | 135°C trip with 14°C hysteresis - Automatically recovers after cooling, preventing latch-up during overload or poor airflow. |
| Enable Threshold | 1.3 V (rising), 0.5 V (falling) - Compatible with standard logic-level GPIOs; floating ENA enables default operation. |
Pinout & Package
TPS5410DR is housed in an industry-standard 8-pin SOIC (D package), 4.9 mm × 6.0 mm body size with Gull-wing leads. Thermal performance is characterized with RθJA = 75°C/W on custom PCB and 106°C/W per JESD51-7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT | Bootstrap supply node | Connects 0.01 μF X7R/X5R ceramic capacitor to PH; provides gate drive voltage for integrated high-side MOSFET. |
| NC (2, 3) | No-connect | Internally unconnected; must remain unpopulated or left floating-no routing or grounding allowed. |
| VSENSE | Feedback input | Monitors output voltage divider midpoint; regulates output by comparing to 1.221 V reference. |
| ENA | Enable control input | Active-high logic interface; <0.5 V disables regulator (IQ ≈ 18 μA), >1.3 V initiates soft-start. |
| GND | Power ground | Primary return path for VIN, PH, and internal circuits; requires low-inductance connection to power plane. |
| VIN | Main input supply | Accepts 5.5–36 V; must be bypassed near package with ≥4.7 μF ceramic capacitor to GND. |
| PH | Power switch node | Drain of integrated high-side MOSFET; connects to inductor and catch diode/anode in buck topology. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high-side MOSFET | 110 mΩ RDS(on) eliminates external switch, gate driver, and associated layout complexity. |
| Internal compensation | Eliminates external compensation network-reduces BOM count and design iteration time for stable 500 kHz operation. |
| Voltage feed-forward | Maintains constant modulator gain across input voltage range, simplifying loop stability and improving line transient response. |
| Hiccup-mode overcurrent protection | Disables switching for 13–20 ms upon sustained overcurrent, then auto-restarts-prevents thermal runaway during short-circuit faults. |
| Internal slow-start | 8 ms typical linear ramp of reference voltage limits inrush current and prevents output overshoot at power-up. |
Applications
| Consumer Electronics Power | Industrial Distributed Power |
|---|---|
Use Scenario: Powering LCD display logic and backlight drivers in set-top boxes and DVD players from 12 V or 24 V wall adapters. IC Role / Device Role / Timing Role: Primary point-of-load buck regulator delivering stable 3.3 V or 5 V to digital ICs and analog video circuitry. Use Value: High efficiency (>90% at 500 mA) minimizes heat in sealed enclosures; 500 kHz switching allows compact 68 μH inductor and low-profile capacitors. | Use Scenario: Generating 5 V or 12 V rails in programmable logic controllers (PLCs) and sensor nodes powered from 24 V industrial bus. IC Role / Device Role / Timing Role: Isolated secondary-side DC/DC converter providing clean, regulated supply for microcontrollers and I/O interfaces. Use Value: –40°C to 125°C operating range ensures reliability in uncontrolled environments; UVLO (5.3 V) prevents erratic startup during brownout conditions. |
| Automotive Audio Systems | Battery-Powered LED Drivers |
Use Scenario: Supplying 5 V to DSPs and amplifiers in car audio head units connected to vehicle 12 V battery (with load dump transients). IC Role / Device Role / Timing Role: Input-filtered buck regulator handling wide-line variation (9–16 V nominal, up to 36 V surge) with fast line transient response. Use Value: Voltage feed-forward architecture maintains tight regulation during alternator load dump events; thermal shutdown protects against prolonged high-temperature cabin operation. | Use Scenario: Driving high-power white LEDs in emergency lighting or signage from 12 V or 24 V battery sources. IC Role / Device Role / Timing Role: Constant-voltage source regulating LED string voltage; paired with external current-sense resistor for basic constant-current mode. Use Value: 1 A output capability supports multi-LED strings; 1.22 V reference enables accurate current-setting with minimal sense voltage drop (e.g., 0.1 Ω @ 1 A = 100 mV). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2678-12DDA | Fixed 12 V output; no adjustable feedback; 5.5–40 V input; 5 A rating; larger TO-263 package. | Suitable only where fixed 12 V output suffices; higher current but less flexible for multi-rail designs. | Select when 12 V output is mandatory and board space allows DDA package; not suitable for adjustable or low-voltage outputs. |
| TPS54202DRCT | 2 A output; 4.5–28 V input; 600 kHz switching; integrated compensation; smaller 10-pin WSON package. | Better suited for higher-current, space-constrained designs; lacks 36 V input support and feed-forward line regulation. | Choose for 2 A loads and tighter board area; avoid if input exceeds 28 V or line transient immunity is critical. |
Compared with LM2678-12DDA and TPS54202DRCT, the TPS5410DR uniquely balances 36 V input tolerance, adjustable output, and SOIC-8 manufacturability-making it optimal for cost-sensitive, medium-current industrial and consumer buck applications where flexibility and thermal robustness are prioritized over raw current or miniaturization.
Availability
TPS5410DR is available at Aetrix Electronics and suitable for consumer electronics power supplies, industrial distributed power systems, and automotive audio subsystems requiring stable component supply across extended temperature and input voltage ranges.
Supply support for TPS5410DR 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 expertise in high-reliability power conversion ICs.
The TPS5410DR belongs to TI's SWIFT™ family of integrated DC/DC converters, designed specifically for industrial, automotive, and consumer applications demanding wide-input, high-efficiency, and easy-to-design buck regulation without external compensation.
FAQ
What is the maximum input voltage the TPS5410DR can withstand continuously?
The TPS5410DR supports continuous operation up to 36 V input, with absolute maximum rating of 40 V on the VIN pin. Operation above 36 V violates recommended conditions and risks permanent damage. The device incorporates undervoltage lockout that prevents startup below 5.3 V, ensuring reliable behavior across automotive and industrial bus voltages. Always use appropriate input filtering and transient suppression when operating near the 36 V limit.
Does the TPS5410DR require external compensation components?
No, the TPS5410DR features fully internal compensation optimized for stable operation at its fixed 500 kHz switching frequency. This eliminates the need for external Type II or Type III compensation networks, reducing bill-of-materials count and layout sensitivity. The internal compensation is validated for standard output filter configurations (e.g., 10–100 μH inductors with low-ESR capacitors), making the TPS5410DR ideal for rapid prototyping and cost-sensitive designs.
How does the TPS5410DR handle overcurrent conditions?
The TPS5410DR employs dual-stage overcurrent protection: cycle-by-cycle limiting triggers immediately when high-side MOSFET current exceeds 1.2–1.9 A (depending on temperature), turning off the switch each cycle; under sustained fault, it enters hiccup mode-disabling switching for 13–20 ms before automatic restart. This prevents thermal runaway during short circuits while allowing recovery without manual reset. The TPS5410DR does not latch off permanently, distinguishing it from some older buck controllers.
Can the TPS5410DR be used with an input voltage below 5.5 V?
The TPS5410DR has a typical undervoltage lockout (UVLO) rising threshold of 5.3 V and hysteresis of 330 mV, meaning it will not start switching until VIN exceeds ~5.3 V. While the datasheet specifies 5.5 V as the minimum recommended operating input, brief dips below this (e.g., during cold cranking) may cause dropout. For reliable operation below 5.5 V, consider alternatives like the TPS54202 (4.5 V min), as the TPS5410DR is not specified or characterized for sub-5.5 V continuous use.
What is the purpose of the BOOT pin on the TPS5410DR?
On the TPS5410DR, the BOOT pin supplies gate drive voltage to the integrated high-side N-channel MOSFET. It must be connected via a 0.01 μF low-ESR ceramic capacitor (X7R/X5R) to the PH pin. During low-side conduction, this capacitor charges through the internal bootstrap diode; during high-side conduction, it provides the elevated voltage needed to fully enhance the MOSFET. Incorrect BOOT capacitor placement or value causes weak gate drive, increased RDS(on), and potential thermal failure-so strict adherence to TI's layout guidelines is essential for TPS5410DR reliability.
TPS5410DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 5.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 1.221V
- Voltage - Output (Max):
- 31.32V
- Current - Output:
- 1A
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TPS5410DR FAQ
1.How can I place an order for TPS5410DR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS5410DR 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 TPS5410DR reliable?
The price and inventory of TPS5410DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS5410DR is usually 5 days.
3.What payment methods are accepted for TPS5410DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS5410DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS5410DR?
TPS5410DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS5410DR 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 TPS5410DR?
For technical support, including TPS5410DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS5410DR requirements.
6.How does Aetrix verify that TPS5410DR is sourced from the original manufacturer or authorized distributors?
All TPS5410DR 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 TPS5410DR meets industry standards.
7.What is the process for return or replacement of TPS5410DR?
All TPS5410DR units undergo pre-shipment inspection (PSI). If there is an issue with TPS5410DR, 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 TPS5410DR part is unused and in its original packaging.
Return procedure for TPS5410DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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