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Texas Instruments TPS62873Y1QWRXSRQ1
- Part No.:
- TPS62873Y1QWRXSRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-TFQFN Exposed Pad
- Datasheet:
-
TPS62873Y1QWRXSRQ1.pdf
- Description:
- IC REG BUCK ADJ 15A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:672
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Product details
Overview
TPS62873Y1QWRXSRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering up to 15A continuous output current, supporting 2.7V–6V input, ±1% output voltage accuracy with differential remote sensing, and I²C interface for dynamic voltage scaling in FPGA/ASIC core rails.
For engineers reviewing the TPS62873Y1QWRXSRQ1 datasheet, TPS62873Y1QWRXSRQ1 pinout, TPS62873Y1QWRXSRQ1 application, or TPS62873Y1QWRXSRQ1 equivalent, key selection criteria include stackable 15A operation, resistor-selectable 1.5–3.0MHz switching frequency, thermal warning/thermal shutdown, active output discharge, and wettable-flank VQFN-16 (2.55mm × 3.55mm) packaging for automotive infotainment, ADAS, and DDR memory supply designs.
Technical Context
The TPS62873Y1QWRXSRQ1 implements a fixed-frequency DCS-Control topology optimized for fast load transients and low output voltage ripple. It supports power-save mode for high efficiency at light loads and forced-PWM mode for consistent switching and minimal ripple under dynamic conditions.
Differential remote sensing (VOSNS/GOSNS) enables precise point-of-load regulation, while the I²C interface (up to 1 MHz) allows real-time output voltage adjustment, temperature monitoring, and fault reporting. Stackability is achieved via SYNC_OUT daisy-chaining and synchronized MODE/SYNC control across identical-current devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 15A continuous - supports high-power digital cores without external current sharing circuitry |
| Input Voltage Range | 2.7V to 6V - compatible with automotive 3.3V/5V rail systems and battery-supplied modules |
| Output Voltage Accuracy | ±1% - guaranteed over –40°C to +125°C ambient and full load range with remote sense compensation |
| Switching Frequency | 1.5 / 2.25 / 2.5 / 3.0 MHz (resistor-selectable) - enables compact magnetics and EMI optimization |
| I²C Interface Speed | Up to 1 MHz - supports rapid voltage scaling during processor DVFS transitions |
| Thermal Protection | Thermal warning at 150°C TJ, shutdown at 170°C TJ - prevents damage in enclosed automotive enclosures |
| Package | VQFN-16 (RXS), 2.55mm × 3.55mm × 1mm with wettable flanks - supports automated optical inspection (AOI) and robust solder joint reliability |
Pinout & Package
TPS62873Y1QWRXSRQ1 is housed in a 16-pin VQFN-FCRLF (RXS) package with exposed thermal pad soldered to GND for optimal thermal performance (RθJA = 28°C/W on EVM). Pin functions are validated per TI SLVSFJ3E datasheet Section 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COMP | Control loop compensation node | Connects external RC network to GOSNS; shared across stacked devices for coordinated stability |
| GOSNS | Differential ground sense input | Measures return path voltage drop to enable true point-of-load regulation |
| VOSNS | Differential output voltage sense input | Paired with GOSNS to reject PCB IR drop and maintain ±1% accuracy at load |
| EN | Enable control input | Active-high with 15kΩ minimum series resistor; interconnect required for stacked operation |
| VIN (Pins 5,9) | Main power input | Requires local ceramic capacitors on both sides of package to minimize high-frequency noise |
| SW | Power switch node | Drives external inductor; connects internally to 7mΩ HS and 4.5mΩ LS MOSFETs |
| PG | Open-drain power-good indicator | Signals valid regulation window (92–98% UV, 102–108% OV); tied together in stack with primary device driving |
| MODE/SYNC | Mode select / external clock sync | Pull-low = power-save; pull-high = forced-PWM; accepts external clock 1.3–3.3MHz for EMI reduction |
| SDA / SCL | I²C bidirectional data / clock | Supports address 0x43 (per Device Options Table); pull-up resistors required; grounded for secondary stack devices |
| VSEL | Startup voltage select | 47kΩ to VIN sets 1.000V startup; defines I²C address and initial VOUT configuration |
| FSEL | Frequency select | Resistor-to-GND/VIN selects 1.5/2.25/2.5/3.0MHz; enables spread-spectrum or external sync |
| SYNC_OUT | Internal clock output | Daisy-chains to MODE/SYNC of next device in stack; 47kΩ-to-GND configures secondary role |
Key Features
| Feature | Design Value |
|---|---|
| Differential remote sensing | Enables ±1% DC output accuracy at point-of-load by rejecting PCB trace resistance effects |
| Stackable architecture | Multiple TPS62873Y1QWRXSRQ1 units can be synchronized and current-shared for >15A applications without external controllers |
| I²C programmability | Real-time VOUT adjustment, temperature monitoring, and fault flag readback via standard 1MHz bus |
| Adjustable external compensation | COMP pin allows custom loop tuning for varied output capacitor ESR/ESL and load transient profiles |
| Active output discharge | Integrated 6Ω resistive or 50–200mA constant-current discharge ensures safe VOUT ramp-down during disable |
| Wettable flank package | RXS VQFN enables reliable AOI inspection of solder joints critical for automotive production quality assurance |
Applications
| Infotainment Power Rail | ADAS Sensor Hub Supply |
|---|---|
|
Use Scenario: Powers SoC, display controller, and audio DSP in automotive head units requiring stable 0.8V–1.2V core rails with fast transient response. IC Role / Device Role / Timing Role: Primary synchronous buck regulator with differential remote sensing and I²C-based DVFS coordination. Use Value: Maintains ±1% output accuracy despite PCB voltage drop, enabling reliable operation of 12nm/7nm processors under burst workloads. |
Use Scenario: Supplies radar/Ethernet/Camera SoCs in centralized ADAS domain controllers with strict thermal and EMI constraints. IC Role / Device Role / Timing Role: High-current (15A) step-down converter operating in forced-PWM mode with spread-spectrum clocking. Use Value: Achieves <10mVpp ripple at 3MHz switching, reducing conducted EMI in safety-critical sensor fusion systems. |
| FPGA Core Voltage Supply | DDR5 Memory VDDQ/VPP Rail |
|
Use Scenario: Delivers dynamically scaled core voltage (0.75V–1.0V) to Xilinx Versal or Intel Agilex FPGAs in vehicle compute modules. IC Role / Device Role / Timing Role: I²C-configurable buck converter supporting sub-100µs voltage transitions during partial reconfiguration. Use Value: 1MHz I²C interface enables real-time VOUT updates aligned with FPGA configuration bitstream loading. |
Use Scenario: Provides tightly regulated 1.1V/1.8V VDDQ and 1.1V VPP to DDR5 memory subsystems in telematics gateways. IC Role / Device Role / Timing Role: Dual-rail capable converter using remote sense to compensate for memory module connector losses. Use Value: Differential sensing maintains 1.1V ±11mV tolerance across 15A load steps, meeting JEDEC DDR5 VDDQ spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62873QWRXSRQ1 | No Y1 suffix; default startup voltage 1.000V, I²C address 0x43 - identical electrical specs and pinout | Same functional scope; differs only in factory-programmed VSEL default (Y1 variant uses 0.800V startup, address 0x43) | Select TPS62873QWRXSRQ1 if 1.000V startup is required; both share identical layout, thermal, and stackability behavior |
| MPQ8633BGLE-Z | Monolithic 15A buck, 2.7–16V input, no I²C, no remote sense, QFN-21 package (4mm × 5mm) | Lacks differential sensing and programmability; suited for non-critical, cost-sensitive 12V automotive rails | Choose MPQ8633BGLE-Z only when remote sensing and I²C control are unnecessary and board space permits larger footprint |
Compared with TPS62873QWRXSRQ1, the Y1 variant offers identical performance but with factory-set 0.800V startup and I²C address 0x43 - ideal for systems requiring lower initial core voltage. MPQ8633BGLE-Z provides higher input voltage range but sacrifices precision regulation and digital control essential for advanced SoC/DDR5 supplies.
Availability
TPS62873Y1QWRXSRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS domain controllers, and high-performance FPGA/ASIC power delivery requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for TPS62873Y1QWRXSRQ1 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 automotive-grade power management ICs with decades of automotive qualification expertise.
The TPS6287x-Q1 product line was designed specifically for high-current, high-accuracy core and memory power in automotive ADAS, infotainment, and zonal ECU applications - emphasizing functional safety readiness, thermal resilience, and digital configurability.
FAQ
What is the startup output voltage of TPS62873Y1QWRXSRQ1?
The TPS62873Y1QWRXSRQ1 has a factory-configured startup output voltage of 0.800V, selected via internal VSEL logic corresponding to a 47kΩ-to-VIN connection. This setting also assigns its I²C address as 0x43. The voltage is programmable post-startup via the I²C interface across four ranges (0.4V–3.35V), and the TPS62873Y1QWRXSRQ1 maintains ±1% accuracy with differential remote sensing throughout.
Does TPS62873Y1QWRXSRQ1 support stacking with other current ratings?
No - TPS62873Y1QWRXSRQ1 must only be stacked with identical 15A variants (e.g., other TPS62873Y1QWRXSRQ1 or TPS62873QWRXSRQ1 units). Mixing with 6A/9A/12A devices risks unbalanced current sharing and premature current-limit triggering due to differing internal MOSFET RDS(on) and ILIM thresholds. Stacking requires synchronized MODE/SYNC and daisy-chained SYNC_OUT signals.
What package type and thermal characteristics does TPS62873Y1QWRXSRQ1 use?
TPS62873Y1QWRXSRQ1 uses the RXS VQFN-16 package (2.55mm × 3.55mm × 1mm) with wettable flanks and an exposed thermal pad soldered to PCB GND. Its junction-to-board thermal resistance (RθJB) is 9.3°C/W on EVM layouts, enabling 15A operation up to +125°C ambient when properly mounted. The absolute max junction temperature is +150°C, with thermal shutdown at +170°C.
Can TPS62873Y1QWRXSRQ1 operate without I²C communication enabled?
Yes - TPS62873Y1QWRXSRQ1 retains full analog functionality without I²C: it powers up at its factory-set VSEL voltage (0.800V), defaults to forced-PWM mode if MODE/SYNC is pulled high, and delivers regulated output using internal compensation. I²C is optional for dynamic control; unused SDA/SCL pins must be pulled to GND only if used as secondary in a stack - otherwise, they require proper pull-ups per datasheet.
What is the maximum supported switching frequency and how is it set on TPS62873Y1QWRXSRQ1?
The TPS62873Y1QWRXSRQ1 supports four discrete switching frequencies: 1.5MHz, 2.25MHz, 2.5MHz, and 3.0MHz - selected via resistor value on the FSEL pin (to GND or VIN). It also accepts external synchronization from 1.3MHz to 3.3MHz on the MODE/SYNC pin. At 3.0MHz, the device achieves minimal inductor size and reduced output capacitance requirements while maintaining <10mVpp ripple in forced-PWM mode.
TPS62873Y1QWRXSRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TFQFN Exposed Pad
- 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):
- 0.4V
- Voltage - Output (Max):
- 3.35V
- Current - Output:
- 15A
- Frequency - Switching:
- 1.5MHz, 2.25MHz, 2.5MHz, 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 16-VQFN (2.55x3.55)
TPS62873Y1QWRXSRQ1 FAQ
1.How can I place an order for TPS62873Y1QWRXSRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62873Y1QWRXSRQ1 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 TPS62873Y1QWRXSRQ1 reliable?
The price and inventory of TPS62873Y1QWRXSRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62873Y1QWRXSRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62873Y1QWRXSRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62873Y1QWRXSRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62873Y1QWRXSRQ1?
TPS62873Y1QWRXSRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62873Y1QWRXSRQ1 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 TPS62873Y1QWRXSRQ1?
For technical support, including TPS62873Y1QWRXSRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62873Y1QWRXSRQ1 requirements.
6.How does Aetrix verify that TPS62873Y1QWRXSRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62873Y1QWRXSRQ1 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 TPS62873Y1QWRXSRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62873Y1QWRXSRQ1?
All TPS62873Y1QWRXSRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62873Y1QWRXSRQ1, 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 TPS62873Y1QWRXSRQ1 part is unused and in its original packaging.
Return procedure for TPS62873Y1QWRXSRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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