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Texas Instruments TPS5410D
- Part No.:
- TPS5410D
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS5410D.pdf
- Description:
- IC REG BUCK ADJ 1A 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,031
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Product details
Overview
TPS5410D from Texas Instruments is a 1-A, wide-input (5.5–36 V), synchronous step-down DC/DC converter with integrated 110-mΩ high-side N-channel MOSFET, fixed 500 kHz switching frequency, and adjustable output down to 1.22 V. It delivers regulated power in space-constrained industrial and automotive power supplies where input voltage varies widely and thermal robustness is critical.
For engineers reviewing the TPS5410D datasheet, TPS5410D pinout, TPS5410D application, or TPS5410D equivalent, key selection criteria include its internal compensation, voltage feed-forward architecture for line transient immunity, –40°C to 125°C junction operation, SOIC-8 package footprint, and hiccup-mode overcurrent protection for fault resilience.
Technical Context
The TPS5410D 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 1.221-V bandgap reference is trimmed to ±1.5% initial accuracy and stable over temperature.
It integrates a bootstrap diode, 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. Thermal shutdown activates at 135–162°C with 14°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5.5 V to 36 V - supports direct connection to 12 V/24 V industrial and automotive rails without pre-regulation. |
| Output Current | 1 A continuous, 1.2 A peak - sufficient for powering FPGA I/O banks, LCD bias supplies, or LED drivers in compact systems. |
| Switching Frequency | Fixed 500 kHz - enables use of small 68 µH inductors and reduces filter size versus lower-frequency alternatives. |
| Feedback Reference | 1.221 V ±1.5% (initial) - sets minimum output voltage; external resistor divider scales output precisely for custom rail generation. |
| High-Side RDS(on) | 100–230 mΩ - contributes to up to 95% efficiency at 12 VIN/12 VOUT, minimizing conduction loss and thermal load. |
| Junction Temperature | –40°C to 125°C - validated for under-hood automotive modules and industrial controllers without derating. |
| Shutdown Current | 15–50 µA - enables ultra-low-power standby in battery-backed systems when ENA is pulled low. |
Pinout & Package
TPS5410D is housed in an 8-pin SOIC (D package), 4.9 mm × 6.0 mm footprint, with exposed pad not present. The package supports standard reflow and is compatible with automated assembly.
| 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 floating or grounded per layout best practice-no routing required. |
| VSENSE | Feedback input | Monitors output via resistor divider; regulates output by comparing to 1.221 V internal reference. |
| ENA | Enable control input | Active-high logic: ≥1.3 V enables regulation; ≤0.5 V disables switching and reduces IQ to ~18 µA. |
| GND | Power and signal ground | Common return for VIN, PH, BOOT, VSENSE, and ENA; requires low-impedance PCB plane connection. |
| VIN | Main input supply | Accepts 5.5–36 V; must be bypassed with ≥4.7 µF ceramic capacitor close to pin to suppress switching noise. |
| PH | Power switch node | Drives external inductor and catch diode; carries high di/dt; requires short, wide trace and tight loop with VIN/GND. |
Key Features
| Feature | Design Value |
|---|---|
| Internal Compensation | Eliminates need for external compensation network-reduces BOM count and design iteration time for stable 500 kHz operation. |
| Voltage Feed-Forward | Maintains constant modulator gain vs. input voltage-improves line transient response and simplifies stability analysis. |
| Integrated Bootstrap Diode | Removes requirement for external bootstrap diode-simplifies layout and improves reliability in high-reliability applications. |
| Hiccup-Mode OCP | Enters timed shutdown/restart on sustained overload-prevents thermal runaway during short-circuit or heavy overload conditions. |
| Thermal Shutdown w/ Hysteresis | Shuts down at 135–162°C and auto-restarts only after 14°C cooldown-ensures safe recovery without manual reset. |
Applications
| Consumer Set-Top Box Power | Industrial 24V Distributed Supply |
|---|---|
Use Scenario: Regulating 12 V output from variable 14.5–36 V input in satellite receiver mainboard power tree. IC Role / Device Role / Timing Role: Primary buck regulator delivering clean, stable 12 V to audio DAC, tuner, and HDMI PHY sections. Use Value: Internal compensation and 500 kHz switching enable compact 12 V rail with <50 mV ripple using only one 68 µH inductor and 47 µF tantalum output cap. | Use Scenario: Generating 5 V or 3.3 V from factory-floor 24 V bus for PLC I/O modules and sensor interfaces. IC Role / Device Role / Timing Role: Point-of-load converter providing isolated, efficient, and thermally robust local regulation near microcontroller peripherals. Use Value: –40°C to 125°C operation and 110 mΩ RDS(on) ensure full 1 A output capability without derating in uncooled enclosures. |
| Automotive Car Audio Amplifier Bias | LED Driver for High-Power Display Backlight |
Use Scenario: Supplying 13.8 V bias rail to Class AB amplifier stages in vehicle infotainment head units. IC Role / Device Role / Timing Role: Input-conditioning buck stage converting noisy 12 V battery rail (9–16 V) to stable amplifier supply. Use Value: Voltage feed-forward and 5.5–36 V input range reject battery transients and maintain consistent output during cranking (≥6 V). | Use Scenario: Driving constant-current LED strings in commercial LCD signage requiring precise dimming and thermal margin. IC Role / Device Role / Timing Role: Constant-voltage source feeding external LED driver IC or current-sense resistor network. Use Value: 1.22 V reference accuracy and internal OVP minimize output overshoot during PWM dimming transitions, protecting LEDs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS5420D | 2 A output, same SOIC-8 package, identical pinout and features - higher current rating with no layout change. | Required when load exceeds 1 A or future-proofing for higher-power variants is needed. | Select TPS5420D if system margin demands >1 A continuous output or if shared PCB design supports dual-current variants. |
| LM2678-12/NOPB | Fixed 12 V output, 5 A capability, 63 kHz switching - larger inductor, lower efficiency at light loads, no voltage feed-forward. | Suitable for cost-sensitive, non-adjustable 12 V rails where size and transient performance are secondary. | Choose LM2678-12/NOPB only for fixed-output, high-current, low-frequency applications where thermal budget allows larger magnetics. |
Compared with TPS5410D, TPS5420D offers scalable current capacity in identical form factor, while LM2678-12/NOPB trades switching speed and adjustability for raw output current and simplicity-making TPS5410D optimal for compact, wide-input, dynamically regulated 1 A rails.
Availability
TPS5410D is available at Aetrix Electronics and suitable for industrial motor drives, automotive infotainment subsystems, and high-density consumer electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS5410D 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 TPS54xx family was designed for high-efficiency, wide-input DC/DC conversion in space-constrained industrial, automotive, and consumer applications-emphasizing integration, thermal resilience, and ease of design-in.
FAQ
What is the minimum input voltage required for TPS5410D to start switching?
The TPS5410D incorporates an undervoltage lockout (UVLO) circuit with a typical rising threshold of 5.3 V and hysteresis of 330 mV. Switching begins only when VIN rises above this threshold. Below 5.3 V, the device remains disabled regardless of ENA state. This ensures reliable startup from nominal 12 V or 24 V rails even under brownout conditions.
Can TPS5410D operate without an external bootstrap capacitor?
No. The TPS5410D requires a 0.01 µF low-ESR ceramic capacitor connected between BOOT and PH pins to generate the gate drive voltage for its integrated high-side MOSFET. Omitting this capacitor prevents proper high-side FET turn-on and causes immediate functional failure. TI specifies X7R or X5R dielectric types for stable capacitance over temperature and bias.
Does TPS5410D support adjustable output voltages below 1.22 V?
No. The TPS5410D's internal voltage reference is fixed at 1.221 V ±1.5%, and the feedback architecture requires VSENSE to equal this reference in regulation. Output voltage is set by an external resistor divider: VOUT = 1.221 V × (1 + R1/R2). Therefore, the lowest achievable output is 1.22 V; lower outputs require a different controller with a lower reference or external reference injection.
How does the TPS5410D handle overcurrent faults?
The TPS5410D uses cycle-by-cycle overcurrent limiting with hiccup-mode fallback. When peak switch current exceeds 1.2–1.9 A (depending on temperature), the high-side FET is turned off mid-cycle. Under sustained overload, it enters hiccup mode-shutting down for 13–20 ms before attempting restart via slow-start-preventing thermal damage while allowing automatic recovery once fault clears.
Is the ENA pin of TPS5410D internally pulled up?
Yes. The ENA pin features an internal pullup current source, allowing the device to operate when the pin is left floating. With ENA open, the TPS5410D powers up normally once VIN exceeds UVLO. To disable the device, ENA must be actively pulled below 0.5 V; connecting it directly to GND achieves full shutdown with ~18 µA quiescent current.
TPS5410D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
TPS5410D FAQ
1.How can I place an order for TPS5410D through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS5410D 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 TPS5410D reliable?
The price and inventory of TPS5410D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS5410D is usually 5 days.
3.What payment methods are accepted for TPS5410D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS5410D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS5410D?
TPS5410D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS5410D 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 TPS5410D?
For technical support, including TPS5410D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS5410D requirements.
6.How does Aetrix verify that TPS5410D is sourced from the original manufacturer or authorized distributors?
All TPS5410D 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 TPS5410D meets industry standards.
7.What is the process for return or replacement of TPS5410D?
All TPS5410D units undergo pre-shipment inspection (PSI). If there is an issue with TPS5410D, 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 TPS5410D part is unused and in its original packaging.
Return procedure for TPS5410D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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