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Texas Instruments TPS62816QWRWYTQ1
- Part No.:
- TPS62816QWRWYTQ1
- Manufacturer:
- Texas Instruments
- Package:
- 9-VFQFN
- Datasheet:
-
TPS62816QWRWYTQ1.pdf
- Description:
- IC REG BUCK ADJ 6A 9VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,038
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Product details
Overview
TPS62816QWRWYTQ1 from Texas Instruments is an AEC-Q100 Grade 1 (–40°C to +125°C TA) automotive synchronous step-down DC/DC converter delivering up to 6-A continuous output current, with 2.7-V to 6-V input range, 0.6-V to 5.5-V adjustable output voltage, ±1% output voltage accuracy in PWM mode, and 26-µA typical quiescent current. It serves as a primary power rail regulator in ADAS sensor fusion and digital cockpit systems.
For engineers reviewing the TPS62816QWRWYTQ1 datasheet, TPS62816QWRWYTQ1 pinout, TPS62816QWRWYTQ1 application, or TPS62816QWRWYTQ1 equivalent, key selection considerations include its wettable-flank VQFN package, 1.8-MHz to 4-MHz adjustable switching frequency, forced-PWM/PWM-PFM mode control via MODE/SYNC, precise ENABLE threshold for sequencing, and integrated power-good window comparator with active output discharge.
Technical Context
The TPS62816QWRWYTQ1 implements peak current mode control with internally compensated loop architecture supporting three programmable compensation settings selected via resistor on COMP/FSET. Its dual-mode operation-forced PWM (MODE/SYNC = high) or automatic PWM/PFM (MODE/SYNC = low)-enables high efficiency across full load range while maintaining tight regulation.
It integrates low-RDS(on) MOSFETs (11 mΩ high-side, 9 mΩ low-side at VIN ≥ 5 V), supports external clock synchronization (1.8–4 MHz), offers 100% duty-cycle operation for ultra-low dropout, and includes spread spectrum clocking (SSC) enabled via COMP/FSET configuration-all within a thermally optimized 3-mm × 2-mm VQFN package with wettable flanks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 6 V - supports wide automotive battery rail including cold-crank (≥2.7 V) and load-dump transient margins. |
| Output Current | 6 A continuous - enables single-chip supply for high-power SoCs or multi-rail PMIC subsystems in ADAS ECUs. |
| Output Voltage Accuracy | ±1% in PWM mode - ensures stable core voltage for safety-critical processors without additional post-regulation. |
| Quiescent Current | 26 µA typical - minimizes standby power loss in always-on vehicle domains (e.g., camera wake-up logic). |
| Switching Frequency | 1.8 MHz to 4 MHz adjustable - allows EMI optimization and compact filter design using small 0.22-µH inductors. |
| Junction Temp Range | –40°C to +150°C - meets AEC-Q100 Grade 1 thermal requirements for under-hood and infotainment placement. |
| Package | VQFN-9 (RWY), 3.0 mm × 2.0 mm with wettable flanks - enables automated optical inspection (AOI) and reliable solder joint formation in automotive SMT lines. |
Pinout & Package
VQFN-9 (RWY) package, 3.0 mm × 2.0 mm body size, 0.4-mm pitch, wettable flanks, exposed thermal pad (GND-connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 8) | Enable input | Logic-controlled startup with precise 1.05–1.15 V rising threshold; enables user-defined UVLO and exact power-rail sequencing. |
| FB (Pin 5) | Feedback input | Monitors output voltage via resistive divider; sets regulated VOUT with 0.6-V reference and ±1% accuracy in PWM mode. |
| GND (Pin 4) | Power ground | Primary return path for high-current SW node and internal bias circuits; connects to exposed thermal pad for thermal dissipation. |
| MODE/SYNC (Pin 1) | Mode control / sync input | Selects forced PWM (high) or auto PWM/PFM (low); accepts external 1.8–4 MHz clock for synchronized multi-converter systems. |
| COMP/FSET (Pin 7) | Compensation / frequency set | Resistor-to-GND sets both control-loop compensation and switching frequency (1.8–4 MHz); enables SSC activation. |
| PG (Pin 9) | Power-good open-drain output | Window comparator asserts high-Z when VOUT is within ±5% of target; signals system controller that rail is valid and stable. |
| SS/TR (Pin 6) | Soft-start / tracking input | Capacitor-to-GND sets startup ramp time; accepts external voltage for output tracking and precise multi-rail sequencing. |
| SW (Pin 3) | Switch node | Connects to internal high- and low-side MOSFETs; requires low-inductance layout to minimize EMI and switching losses. |
| VIN (Pin 2) | Input power supply | Accepts 2.7–6 V; requires local 10-µF ceramic capacitor placed adjacent to pin to suppress high-frequency ripple. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - certified for front-end ADAS sensors and cockpit domain controllers. |
| Active output discharge | Internal 50-Ω discharge path clears VOUT after shutdown - prevents floating rails and ensures deterministic reset behavior. |
| Adjustable soft start & tracking | SS/TR pin supports programmable ramp time or external voltage tracking - eliminates inrush current and enables controlled multi-supply sequencing. |
| 100% duty-cycle mode | High-side FET remains fully on when VIN approaches VOUT - sustains regulation down to ~100-mV dropout, critical for low-VIN scenarios. |
| Functional safety documentation support | TI provides FIT rate, failure mode analysis, and diagnostic coverage data - accelerates ISO 26262 ASIL-B system-level certification. |
Applications
| ADAS Sensor Fusion ECU | Digital Cockpit Processor Rail |
|---|---|
|
Use Scenario: Powers image signal processor (ISP) and radar preprocessor in centralized ADAS domain controller with strict EMI and thermal constraints. IC Role / Device Role / Timing Role: Primary 1.1-V/3-A core supply with fast transient response and <100-µs PG assertion to enable safe boot sequence. Use Value: 6-A capability and 26-µA IQ allow single-converter solution for multi-core SoC, reducing BOM count and PCB area vs. discrete regulators. |
Use Scenario: Supplies 1.8-V I/O and 0.8-V GPU cores in automotive-grade infotainment SoC requiring tight voltage tolerance and low noise. IC Role / Device Role / Timing Role: High-accuracy (±1%) buck regulator with PG monitoring and soft-start control for coordinated power-up with display and audio subsystems. Use Value: Adjustable 1.8–4 MHz switching frequency enables EMI spreading and avoids sensitive AM/FM bands while maintaining small 0.22-µH inductor size. |
| Surround-View Camera Hub | External Audio Amplifier Bias Supply |
|
Use Scenario: Delivers 3.3-V/2-A power to four-channel MIPI CSI-2 serializer ICs in 360° camera processing module. IC Role / Device Role / Timing Role: Stable intermediate rail generator with precise ENABLE sequencing to align with camera sensor wake-up timing. Use Value: Wettable-flank VQFN package ensures AOI-compatible solder joints in high-vibration environments, improving long-term field reliability. |
Use Scenario: Generates 12-V bias rail for Class-D audio amplifier in premium sound system, operating from 12-V battery with load-dump immunity. IC Role / Device Role / Timing Role: Step-down converter with 100% duty-cycle mode maintains regulation during cold-crank (VIN = 6 V) while supplying 12-V output. Use Value: Integrated low-RDS(on) FETs (11/9 mΩ) and 6-A rating eliminate need for external MOSFETs, simplifying thermal design in space-constrained amplifier modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62903RTER | Lower 3-A output current; 2.7–6.5 V input; 1.8–4 MHz freq; no wettable flanks; no PG output | Suitable for lower-power infotainment peripherals but lacks power-good signaling and AEC-Q100 Grade 1 thermal margin | Choose TPS62903RTER only if 3-A output suffices and PG monitoring is not required in the system architecture. |
| MPQ4436AGL-AEC1-Z | 6-A output; 3–18 V input; fixed 2.2 MHz; no adjustable freq or SSC; QFN-13 with wettable flanks; no SS/TR pin | Broad input range fits 12-V systems but lacks soft-start/tracking flexibility and fine-grained frequency tuning for EMI control | Prefer MPQ4436AGL-AEC1-Z only when input exceeds 6 V or when simpler fixed-frequency design is acceptable over programmability. |
Compared with TPS62816QWRWYTQ1, TPS62903RTER trades output current and functional completeness for smaller footprint and cost, while MPQ4436AGL-AEC1-Z sacrifices frequency adjustability and sequencing features for wider input voltage range-making TPS62816QWRWYTQ1 optimal for high-precision, multi-rail automotive power systems demanding full configurability and safety compliance.
Availability
TPS62816QWRWYTQ1 is available at Aetrix Electronics and suitable for ADAS sensor fusion, digital cockpit, and surround-view ECU applications requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for TPS62816QWRWYTQ1 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 power management and functional safety solutions.
The TPS62816-Q1 belongs to TI's automotive-qualified DC/DC converter portfolio, designed specifically for high-reliability, low-noise, and thermally robust power delivery in advanced driver assistance and digital cockpit systems.
FAQ
What is the maximum continuous output current of the TPS62816QWRWYTQ1?
The TPS62816QWRWYTQ1 delivers up to 6 A of continuous output current under recommended operating conditions (TA ≤ +125°C, proper PCB thermal design). This rating assumes use of the specified 3-mm × 2-mm VQFN package with wettable flanks and adequate copper pour for heat dissipation. Peak current capability reaches 10.4 A before foldback limiting activates, supporting transient loads in ADAS vision processors.
Does the TPS62816QWRWYTQ1 support external clock synchronization?
Yes, the TPS62816QWRWYTQ1 supports external clock synchronization via the MODE/SYNC pin (Pin 1), accepting input frequencies from 1.8 MHz to 4 MHz. When an external clock is applied, the device locks within 50 µs and maintains phase alignment with a ~180° shift between SW and MODE/SYNC edges-enabling deterministic interleaving in multi-phase or multi-rail automotive power systems without additional timing components.
How does the TPS62816QWRWYTQ1 handle undervoltage lockout (UVLO)?
The TPS62816QWRWYTQ1 implements precise UVLO with rising threshold of 2.45–2.7 V and falling hysteresis of 2.1–2.6 V. When VIN drops below the falling threshold, both internal MOSFETs disable and PG goes low. The EN pin also supports user-defined UVLO via external resistor divider, allowing custom turn-on/off thresholds independent of the internal UVLO circuit-critical for staged power-up in complex automotive ECUs.
Can the TPS62816QWRWYTQ1 operate in 100% duty-cycle mode?
Yes, the TPS62816QWRWYTQ1 enters 100% duty-cycle mode when VIN approaches VOUT, maintaining regulation with minimal dropout. In this mode, the high-side FET remains continuously on while the low-side FET stays off. The effective dropout is determined by the high-side RDS(on) (11 mΩ typical), enabling stable operation down to ~100 mV dropout-essential for cold-crank scenarios where battery voltage dips near regulated output levels.
What is the purpose of the SS/TR pin on the TPS62816QWRWYTQ1?
The SS/TR (soft-start/tracking) pin (Pin 6) serves two functions: (1) With a capacitor to GND, it sets output voltage ramp time to limit inrush current during startup; (2) When driven by an external voltage source, it enables output voltage tracking for coordinated sequencing with other rails. The TPS62816QWRWYTQ1 achieves ±1 mV tracking offset and unity gain, making it suitable for powering stacked-core SoCs or mixed-signal ASICs requiring tightly coupled supply ramps.
TPS62816QWRWYTQ1 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):
- 2.7V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 6A
- 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)
TPS62816QWRWYTQ1 FAQ
1.How can I place an order for TPS62816QWRWYTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62816QWRWYTQ1 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 TPS62816QWRWYTQ1 reliable?
The price and inventory of TPS62816QWRWYTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62816QWRWYTQ1 is usually 5 days.
3.What payment methods are accepted for TPS62816QWRWYTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62816QWRWYTQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62816QWRWYTQ1?
TPS62816QWRWYTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62816QWRWYTQ1 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 TPS62816QWRWYTQ1?
For technical support, including TPS62816QWRWYTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62816QWRWYTQ1 requirements.
6.How does Aetrix verify that TPS62816QWRWYTQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62816QWRWYTQ1 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 TPS62816QWRWYTQ1 meets industry standards.
7.What is the process for return or replacement of TPS62816QWRWYTQ1?
All TPS62816QWRWYTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62816QWRWYTQ1, 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 TPS62816QWRWYTQ1 part is unused and in its original packaging.
Return procedure for TPS62816QWRWYTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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