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Texas Instruments TPS5410QDRQ1
- Part No.:
- TPS5410QDRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TPS5410QDRQ1.pdf
- Description:
- IC REG BUCK ADJ 1A 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,643
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Product details
Overview
TPS5410QDRQ1 from Texas Instruments is an automotive-grade, 1A synchronous step-down DC/DC converter with integrated 110mΩ high-side N-channel MOSFET, 5.5V–36V input range, adjustable 1.22V output (1.5% initial accuracy), fixed 500kHz switching frequency, and internal compensation - used in 12V/24V distributed power systems for car audio and infotainment.
For engineers reviewing the TPS5410QDRQ1 datasheet, TPS5410QDRQ1 pinout, TPS5410QDRQ1 application, or TPS5410QDRQ1 equivalent, key selection criteria include automotive AEC-Q100 qualification, thermal shutdown at 135°C, ENA-controlled shutdown (18μA IQ), voltage feed-forward for line transient response, and SOIC-8 package compatibility with board-level thermal management constraints.
Technical Context
The TPS5410QDRQ1 implements voltage-mode PWM control with integrated voltage feed-forward to maintain constant power-stage gain across input voltage variations, enabling stable regulation and improved line transient response. Its internal 1.221V reference (±1.5% over –40°C to 125°C) feeds a high-gain error amplifier driving a fixed-frequency 500kHz oscillator.
Protection architecture includes cycle-by-cycle overcurrent limiting (1.2A peak), hiccup-mode fault recovery, overvoltage protection (112.5% × VREF), undervoltage lockout (5.3V rising threshold, 330mV hysteresis), and thermal shutdown (135°C trip, 14°C hysteresis). The BOOT–PH bootstrap circuit supplies gate drive for the integrated MOSFET using a 0.01μF ceramic capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5.5V to 36V - supports direct connection to automotive 12V/24V battery rails including cold-crank and load-dump transients. |
| Output Current | 1A continuous / 1.2A peak - enables single-chip supply for moderate-power subsystems like display bias or audio amplifiers. |
| Switching Frequency | Fixed 500kHz - allows compact LC filter design with ≤68μH inductor and reduces audible noise in sensitive applications. |
| Feedback Reference | 1.221V ±1.5% - sets minimum output voltage; external resistor divider enables precise adjustment of VOUT down to 1.22V. |
| High-Side RDS(on) | 110mΩ typical at 12V VIN - delivers up to 95% efficiency at 1A, reducing thermal load in SOIC-8 package. |
| Shutdown Current | 18μA typical - enables low-power sleep modes in always-on automotive modules without external enable circuitry. |
| Junction Temperature | –40°C to 125°C - qualified per AEC-Q100 Grade 1, supporting under-hood and dashboard mounting locations. |
Pinout & Package
TPS5410QDRQ1 is housed in an 8-pin SOIC (D package), 4.9mm × 6mm footprint, with exposed pad not present. Thermal resistance RθJA = 75°C/W on custom PCB, enabling 1A operation without forced airflow in automotive ambient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT | Bootstrap capacitor node | Connects 0.01μF X7R/X5R ceramic capacitor to PH; supplies gate-drive voltage for integrated high-side MOSFET. |
| NC (2,3) | No-connect terminals | Internally unconnected; must remain floating - no routing or soldering required. |
| VSENSE | Feedback input | Monitors output voltage via external resistor divider; regulates VOUT by maintaining 1.221V at this pin. |
| ENA | Enable control | Active-high logic input (1.3V turn-on, 0.5V turn-off); internal 1.5MΩ pullup allows floating operation. |
| GND | Power ground | Primary return path for input, output, and IC bias currents; requires low-inductance layout to PH and VIN pins. |
| VIN | Main input supply | Accepts 5.5V–36V; bypassed with ≥4.7μF ceramic capacitor close to pin to suppress high-frequency ripple. |
| PH | Power switch node | Drain of internal MOSFET; connects to external inductor and catch diode (or synchronous rectifier in alternate designs). |
Key Features
| Feature | Design Value |
|---|---|
| Internal Compensation | Eliminates need for external compensation network - reduces BOM count and layout sensitivity while ensuring stability with standard output filters. |
| Voltage Feed-Forward | Maintains constant modulator gain across input voltage changes - improves line regulation and reduces output deviation during battery voltage transients. |
| Integrated Bootstrap Diode | Removes requirement for external bootstrap recharge diode - simplifies layout and improves reliability in space-constrained automotive modules. |
| Slow-Start Circuit | 8ms typical ramp time - limits inrush current and prevents output overshoot during power-up without external timing components. |
| AEC-Q100 Qualified | Grade 1 (–40°C to +125°C TJ) - certified for automotive powertrain, body electronics, and infotainment systems requiring long-term reliability. |
Applications
| Car Audio Power Supply | Infotainment Display Bias |
|---|---|
|
Use Scenario: Supplies regulated 12V/5V rails to Class D amplifiers and DSP modules in OEM head units. IC Role / Device Role / Timing Role: Primary buck regulator converting 12V battery to stable intermediate rail; operates continuously during vehicle runtime. Use Value: 95% efficiency at 1A minimizes heat buildup in sealed enclosures; AEC-Q100 qualification ensures immunity to vibration, thermal cycling, and EMI in cabin environments. |
Use Scenario: Powers LCD backlight drivers and touch controller logic in digital instrument clusters. IC Role / Device Role / Timing Role: Point-of-load converter delivering 3.3V/5V from 12V bus; starts within 8ms after ignition-on signal. Use Value: Internal slow-start and OVP prevent display flicker or latch-up during cold-crank (5.5V VIN min); SOIC-8 footprint fits tight board spacing behind dash bezels. |
| Battery Charger Auxiliary Rail | 12V/24V Distributed Power System |
|
Use Scenario: Generates isolated 5V bias for charger control ICs and communication interfaces in EV onboard chargers. IC Role / Device Role / Timing Role: Secondary regulator fed from main DC/DC stage; enables independent enable/disable via ENA pin. Use Value: 18μA shutdown current extends standby battery life; UVLO hysteresis prevents oscillation during weak-battery charging cycles. |
Use Scenario: Provides local 3.3V/5V rails across multiple ECUs in commercial vehicle telematics networks. IC Role / Device Role / Timing Role: Standardized buck converter deployed across gateway, ADAS camera, and HVAC control modules. Use Value: Fixed 500kHz frequency enables consistent EMI filter design; thermal shutdown protects against sustained overload in high-ambient under-hood zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QDDARQ1 | 42V input, 0.6A, 1MHz switching, external compensation, no integrated bootstrap diode | Better suited for higher-frequency, lower-current designs requiring tighter EMI control and flexible loop tuning | Select when needing >1MHz operation or programmable soft-start; requires additional compensation components and external bootstrap diode. |
| TPS54202QDRCTQ1 | 6V–18V input, 2A, 500kHz, integrated FET, internal compensation, smaller 10-pin WSON package | Higher current capability in smaller footprint but narrower input range - unsuitable for 24V truck systems | Choose for space-constrained 12V-only applications needing >1A; not viable for 24V battery architectures or cold-crank support. |
Compared with LM5164QDDARQ1 and TPS54202QDRCTQ1, the TPS5410QDRQ1 uniquely balances wide 5.5V–36V input coverage, AEC-Q100 Grade 1 rating, SOIC-8 manufacturability, and internal bootstrap diode - making it optimal for cost-sensitive, thermally constrained 1A automotive power nodes where 24V compatibility and layout simplicity are critical.
Availability
TPS5410QDRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, car audio power supplies, and 12V/24V distributed power systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS5410QDRQ1 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 automotive qualification expertise and broad manufacturing scale.
The TPS5410QDRQ1 belongs to TI's SWIFT™ family of automotive DC/DC converters, designed specifically for robust, high-efficiency point-of-load regulation in harsh automotive environments - emphasizing thermal resilience, transient immunity, and AEC-Q100 compliance.
FAQ
What is the minimum input voltage required for TPS5410QDRQ1 to start switching?
The TPS5410QDRQ1 features an undervoltage lockout (UVLO) circuit with a typical rising threshold of 5.3V and 330mV hysteresis. It begins switching only when VIN exceeds this threshold. Below 5.3V, the device remains disabled regardless of ENA state. This ensures reliable startup across automotive battery conditions including cold-crank events where voltage may dip temporarily.
Can TPS5410QDRQ1 operate without an external bootstrap capacitor?
No - the TPS5410QDRQ1 requires a 0.01μF low-ESR ceramic capacitor connected between BOOT and PH pins to generate gate drive voltage for its integrated high-side MOSFET. Omitting this capacitor prevents proper switching and may cause immediate failure. X7R or X5R dielectrics are recommended for stable capacitance across temperature and bias.
Does TPS5410QDRQ1 support adjustable switching frequency?
No - the TPS5410QDRQ1 uses an internal oscillator fixed at 500kHz. Frequency cannot be adjusted via external components or pins. This simplifies EMI filtering design and ensures consistent performance across units, but precludes optimization for ultra-low-noise or high-efficiency light-load operation.
How does the internal slow-start function in TPS5410QDRQ1 affect system behavior?
The TPS5410QDRQ1 incorporates an internal slow-start circuit that linearly ramps the feedback reference voltage from 0V to 1.221V over ~8ms. This controls output voltage rise time, limiting inrush current into downstream capacitors and preventing overshoot - critical for protecting sensitive loads like display panels and audio codecs during ignition-on sequences.
Is TPS5410QDRQ1 pin-compatible with any non-automotive variants like TPS5410DR?
No - although TPS5410QDRQ1 shares the same SOIC-8 package and pinout as the commercial-grade TPS5410DR, it is not pin-compatible in functional terms. The Q1 version includes enhanced UVLO thresholds, tighter reference tolerance, extended temperature range (–40°C to 125°C), and AEC-Q100 stress testing - requiring full requalification if substituted in automotive designs.
TPS5410QDRQ1 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TPS5410QDRQ1 FAQ
1.How can I place an order for TPS5410QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS5410QDRQ1 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 TPS5410QDRQ1 reliable?
The price and inventory of TPS5410QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS5410QDRQ1 is usually 5 days.
3.What payment methods are accepted for TPS5410QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS5410QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS5410QDRQ1?
TPS5410QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS5410QDRQ1 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 TPS5410QDRQ1?
For technical support, including TPS5410QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS5410QDRQ1 requirements.
6.How does Aetrix verify that TPS5410QDRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS5410QDRQ1 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 TPS5410QDRQ1 meets industry standards.
7.What is the process for return or replacement of TPS5410QDRQ1?
All TPS5410QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS5410QDRQ1, 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 TPS5410QDRQ1 part is unused and in its original packaging.
Return procedure for TPS5410QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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