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Texas Instruments TPS62813QWRWYTQ1
- Part No.:
- TPS62813QWRWYTQ1
- Manufacturer:
- Texas Instruments
- Package:
- 9-VFQFN
- Datasheet:
-
TPS62813QWRWYTQ1.pdf
- Description:
- IC REG BUCK ADJ 3A 9VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,147
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Product details
Overview
TPS62813QWRWYTQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering up to 3 A continuous output current, operating from 2.75 V to 6 V input, with adjustable output voltage (0.6 V–5.5 V), ±1% PWM-mode accuracy, and 1.8 MHz–4 MHz externally adjustable switching frequency. It serves as a primary power rail regulator in ADAS sensor fusion ECUs and infotainment head units.
For engineers reviewing the TPS62813QWRWYTQ1 datasheet, TPS62813QWRWYTQ1 pinout, TPS62813QWRWYTQ1 application, or TPS62813QWRWYTQ1 equivalent, key selection criteria include its wettable-flank VQFN-9 package, active output discharge, precise ENABLE threshold for sequencing, forced-PWM/PFM mode control via MODE/SYNC, and spread-spectrum clocking option for EMI reduction.
Technical Context
The TPS62813QWRWYTQ1 uses peak current mode control with internal compensation selectable via resistor on COMP/FSET, supporting three output capacitance ranges (27 µF–470 µF). Its high-side/low-side MOSFET RDS(on) is 37 mΩ / 15 mΩ (typ. at VIN ≥ 5 V), enabling stable 3 A operation at +125°C ambient.
It integrates a window-comparator-based power-good (PG) output, 100% duty-cycle capability for low-dropout operation, and soft-start/tracking (SS/TR) functionality for controlled ramp-up or supply rail sequencing - all within a 3 mm × 2 mm VQFN package with wettable flanks for automated optical inspection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.75 V to 6 V - supports direct connection to automotive battery rails including cold-crank (≥2.75 V) and post-ignition (≤6 V) conditions. |
| Output Current | 3 A continuous - rated for sustained load in high-temperature environments per AEC-Q100 Grade 1 (−40°C to +125°C TA). |
| Output Voltage Accuracy | ±1% in PWM mode - ensures tight regulation for sensitive SoC cores and SerDes interfaces without external calibration. |
| Switching Frequency | 1.8 MHz to 4 MHz, adjustable via resistor on COMP/FSET - enables optimization of inductor size, efficiency, and EMI profile across varied board layouts. |
| Quiescent Current | 15 µA typical - maintains ultra-low standby power in always-on vehicle domains such as telematics wake-up circuits. |
| Power-Good Output | Open-drain PG with window comparator - provides reliable system-level power sequencing confirmation with ±5% VFB tolerance and 40 µs deglitch. |
| Enable Threshold | VIL = 1.0 V, VIH = 1.1 V - allows precise undervoltage lockout implementation using simple resistor dividers from battery or upstream supplies. |
Pinout & Package
TPS62813QWRWYTQ1 is housed in a 3 mm × 2 mm VQFN-9 package (RWY) with wettable flanks for solder-joint inspection. The package has exposed thermal pad (GND-connected) on underside.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: MODE/SYNC | Digital control input | Selects PFM/PWM auto-mode (low) or forced PWM (high); also accepts external 1.8–4 MHz sync clock signal for multi-rail timing alignment. |
| 2: VIN | Power input | Main supply input; requires local 10 µF ceramic capacitor to GND for stability and transient response. |
| 3: SW | Switch node | Connection to internal high-side/low-side MOSFETs; routes to external inductor and catch diode (if used). |
| 4: GND | Ground reference | Power and signal ground; thermally connected to exposed pad for PCB heat dissipation. |
| 5: FB | Feedback input | Senses output voltage via resistive divider; sets regulated VOUT = 0.6 V × (1 + R1/R2) for adjustable versions. |
| 6: SS/TR | Soft-start/tracking input | Controls startup ramp time via external capacitor; also accepts external voltage for supply tracking during power sequencing. |
| 7: COMP/FSET | Compensation/frequency set | Resistor to GND selects both control-loop compensation and switching frequency (1.8–4 MHz); tied to GND/VIN fixes fS = 2.25 MHz. |
| 8: EN | Enable input | Logic-controlled enable with precise 1.1 V rising threshold; supports RC-based delay and programmable UVLO. |
| 9: PG | Power-good output | Open-drain status flag indicating VOUT is within ±5% of target; pulled high externally for system reset or enable chaining. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation - suitable for under-hood and dashboard-mounted automotive modules without derating. |
| Active output discharge | 50 Ω internal discharge path - ensures rapid VOUT collapse during shutdown, preventing back-powering of downstream circuitry. |
| Adjustable soft-start and tracking | Capacitor-programmable ramp time (100–200 µs) and external voltage tracking - enables safe, sequenced power-up of multi-rail SoCs and FPGAs. |
| Spread-spectrum clocking (SSC) | Configurable via pin strap - reduces peak EMI by spreading fundamental switching energy over ±1% bandwidth, easing CISPR 25 Class 5 compliance. |
| 100% duty-cycle operation | Supports dropout < 100 mV at full load - maintains regulation during low-VIN transients (e.g., engine cranking) without dropout or reset. |
Applications
| Infotainment Head Unit | Hybrid Reconfigurable Cluster |
|---|---|
Use Scenario: Powers application processor, display interface, and audio codec in centralized vehicle infotainment systems. IC Role / Device Role / Timing Role: Primary 3.3 V or 1.2 V core rail regulator with fast transient response and low-noise operation. Use Value: Delivers stable 3 A at ±1% accuracy while maintaining <15 µA quiescent current in sleep mode - extending battery life during vehicle off-state. | Use Scenario: Supplies configurable instrument cluster MCU, graphics controller, and backlight driver from single 5 V input. IC Role / Device Role / Timing Role: Adjustable-output buck converter enabling dynamic voltage scaling for different display modes (e.g., day/night brightness). Use Value: Soft-start and tracking ensure synchronized rail ramp-up across CPU, GPU, and display ICs - eliminating latch-up and brownout resets. |
| Telematics Control Unit | Surround View ECU |
Use Scenario: Provides clean, low-noise 1.8 V and 3.3 V rails for LTE/C-V2X modems and GNSS receivers in always-connected TCUs. IC Role / Device Role / Timing Role: High-efficiency, low-EMI power stage with spread-spectrum clocking to meet stringent RF coexistence requirements. Use Value: 1.8–4 MHz adjustable frequency avoids interference with cellular bands; PG output confirms rail readiness before modem initialization. | Use Scenario: Powers image signal processors (ISPs) and MIPI CSI-2 serializers in 4-camera surround-view systems. IC Role / Device Role / Timing Role: High-current, thermally robust regulator handling burst loads from concurrent camera streaming and AI inference. Use Value: 3 A rating and 71.1°C/W RθJA allow full-load operation at +105°C ambient - critical for sealed, fanless ECU enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62812QWRWYTQ1 | 2 A output current; identical pinout, package, and feature set except reduced current limit and higher RDS(on). | Suitable for lower-power clusters or single-camera vision modules where 2 A suffices. | Select when system load peaks ≤2 A and thermal margin is constrained - same layout, no redesign needed. |
| LM61480QRTWRQ1 | 3.5 A rating, 2.5–18 V input, fixed 2.1 MHz fS, no spread spectrum or SS/TR pin; larger 16-pin WQFN package. | Better suited for wide-input industrial or body-control modules requiring higher VIN tolerance. | Choose when input exceeds 6 V or when simplified design (no frequency tuning) outweighs EMI flexibility and sequencing needs. |
Compared with TPS62812QWRWYTQ1, the TPS62813QWRWYTQ1 adds 1 A current headroom and lower MOSFET losses for sustained high-temp operation; versus LM61480QRTWRQ1, it offers finer EMI control, rail sequencing, and smaller footprint - critical for space-constrained ADAS domains.
Availability
TPS62813QWRWYTQ1 is available at Aetrix Electronics and suitable for infotainment head units, hybrid reconfigurable clusters, and surround-view ECUs requiring stable component supply across automotive production lifecycles.
Supply support for TPS62813QWRWYTQ1 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 and embedded processing technologies, with deep expertise in automotive-grade power management ICs.
The TPS6281x-Q1 product line was designed specifically for high-reliability automotive power rails in ADAS, infotainment, and telematics - emphasizing AEC-Q100 compliance, thermal robustness, and functional safety support.
FAQ
What is the maximum continuous output current of the TPS62813QWRWYTQ1?
The TPS62813QWRWYTQ1 delivers up to 3 A continuous output current under AEC-Q100 Grade 1 conditions (−40°C to +125°C ambient), verified with 27 µF minimum output capacitance and proper thermal layout. Peak current limit is 4.5 A (typ.), with thermal shutdown activating at 170°C junction temperature.
Does the TPS62813QWRWYTQ1 support external synchronization of its switching frequency?
Yes, the TPS62813QWRWYTQ1 supports external synchronization via the MODE/SYNC pin, accepting a 1.8 MHz–4 MHz clock signal with 20%–80% duty cycle. Synchronization requires a resistor from COMP/FSET to GND; tying COMP/FSET to GND or VIN disables sync capability.
How does the SS/TR pin function in tracking mode for the TPS62813QWRWYTQ1?
In tracking mode, the SS/TR pin accepts an external voltage reference; the TPS62813QWRWYTQ1 regulates its output to match that reference with 1× gain and 17 mV offset (for nominal 0.6 V feedback). This enables precise sequencing with other rails - e.g., aligning 1.2 V core and 3.3 V I/O ramps in an SoC power tree.
What package type and thermal characteristics does the TPS62813QWRWYTQ1 use?
The TPS62813QWRWYTQ1 uses a 3 mm × 2 mm VQFN-9 package (RWY) with wettable flanks and exposed thermal pad. Its thermal metrics include RθJA = 71.1°C/W, RθJB = 16.4°C/W, and ψJB = 16.1°C/W - confirming effective heat transfer to the PCB for high-current automotive operation.
Is spread-spectrum clocking enabled by default on the TPS62813QWRWYTQ1?
No, spread-spectrum clocking (SSC) is optional and disabled by default on the TPS62813QWRWYTQ1. It must be enabled via a specific pin configuration (MODE/SYNC tied low with SSC strap) per Section 8.3.5 of the datasheet; activation reduces peak EMI without affecting regulation accuracy or transient performance.
TPS62813QWRWYTQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 9-VFQFN
- 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):
- 2.75V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3A
- Frequency - Switching:
- 1.8MHz ~ 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 9-VQFN-HR (3x2)
TPS62813QWRWYTQ1 FAQ
1.How can I place an order for TPS62813QWRWYTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62813QWRWYTQ1 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 TPS62813QWRWYTQ1 reliable?
The price and inventory of TPS62813QWRWYTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62813QWRWYTQ1 is usually 5 days.
3.What payment methods are accepted for TPS62813QWRWYTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62813QWRWYTQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62813QWRWYTQ1?
TPS62813QWRWYTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62813QWRWYTQ1 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 TPS62813QWRWYTQ1?
For technical support, including TPS62813QWRWYTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62813QWRWYTQ1 requirements.
6.How does Aetrix verify that TPS62813QWRWYTQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62813QWRWYTQ1 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 TPS62813QWRWYTQ1 meets industry standards.
7.What is the process for return or replacement of TPS62813QWRWYTQ1?
All TPS62813QWRWYTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62813QWRWYTQ1, 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 TPS62813QWRWYTQ1 part is unused and in its original packaging.
Return procedure for TPS62813QWRWYTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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