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Texas Instruments TPS62872N3QWRXSRQ1
- Part No.:
- TPS62872N3QWRXSRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-TFQFN Exposed Pad
- Datasheet:
-
TPS62872N3QWRXSRQ1.pdf
- Description:
- IC REG BUCK PROG 12A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,980
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Product details
Overview
TPS62872N3QWRXSRQ1 from Texas Instruments is a 12A AEC-Q100 Grade-1 automotive synchronous step-down converter with differential remote sensing, I²C interface, and stackable architecture. It operates from 2.7V–6V input, delivers ±1% output voltage accuracy across 0.4V–3.35V range, and supports 1.5/2.25/2.5/3.0MHz switching via FSEL pin-designed for FPGA core and DDR memory supply in ADAS and infotainment systems.
For engineers reviewing the TPS62872N3QWRXSRQ1 datasheet, TPS62872N3QWRXSRQ1 pinout, TPS62872N3QWRXSRQ1 application, or TPS62872N3QWRXSRQ1 equivalent, key selection criteria include its 12A continuous current rating, wettable-flank VQFN-16 (2.55mm × 3.55mm) package, thermal warning/thermal shutdown thresholds (150°C/170°C), active output discharge capability, and resistor-selectable startup voltage (1.000V default per VSEL configuration).
Technical Context
The TPS62872N3QWRXSRQ1 implements a fixed-frequency DCS-Control topology enabling fast transient response while maintaining low output voltage ripple. Its dual MOSFET power stage features 7mΩ high-side and 4.5mΩ low-side rDS(on), supporting up to 12A continuous output at junction temperatures up to 150°C.
Differential remote sensing (VOSNS/GOSNS) enables point-of-load regulation with ±1% DC accuracy under all load and temperature conditions. The device supports stackable operation with synchronized MODE/SYNC and daisy-chained SYNC_OUT pins, and offers programmable spread-spectrum or external clock synchronization for EMI reduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 12A continuous-supports high-power digital loads like SoC cores without derating at 125°C ambient. |
| Input Voltage Range | 2.7V to 6V-compatible with 3.3V, 5V, and automotive battery rails including cold-crank transients. |
| Output Voltage Accuracy | ±1% over line, load, and temperature-enables tight regulation for DDR4/DDR5 VDDQ and processor core rails. |
| Switching Frequency | 1.5 / 2.25 / 2.5 / 3.0 MHz (resistor-selectable)-allows optimization of size vs. efficiency and EMI performance. |
| Remote Sensing | Differential VOSNS/GOSNS inputs-compensates for PCB IR drop to maintain ±1% regulation at point-of-load. |
| Thermal Protection | Thermal warning at 150°C TJ, shutdown at 170°C TJ-provides fail-safe operation in sealed automotive enclosures. |
| Startup Voltage | 1.000V (default, set by 6.2kΩ to GND on VSEL)-configurable to four factory-defined values for flexible system boot sequencing. |
Pinout & Package
TPS62872N3QWRXSRQ1 is housed in a 16-pin VQFN-FCRLF (RXS) package measuring 2.55mm × 3.55mm × 1mm with wettable flanks for automated optical inspection. Thermal pad must be soldered to GND for optimal thermal resistance (RθJB = 7.7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COMP | Control loop compensation node | Connects external RC network to GOSNS; in stacked configurations, all COMP pins tie together for shared loop control. |
| VOSNS / GOSNS | Differential output voltage sense inputs | Enable point-of-load regulation; reject common-mode noise and PCB trace resistance effects. |
| EN | Enable input (active-high) | Requires ≥15kΩ series resistor; enables coordinated startup/shutdown in multi-rail systems. |
| MODE/SYNC | Operating mode select / external clock input | Pull low for power-save mode; pull high for forced-PWM; accepts external sync clock (1.3–3.3MHz). |
| PG | Open-drain power-good output | Signals valid output voltage with window comparator (92–98% UV, 102–108% OV); tied together in stack for master-slave coordination. |
| VSEL / FSEL | Startup voltage / switching frequency select | Resistor-to-GND/VIN sets one of four factory-programmed VOUT startup values or fSW options (1.5–3.0MHz). |
| SDA / SCL | I²C interface (disabled in N-series) | Internally disabled; must be tied to GND per datasheet-no I²C functionality in TPS62872N3QWRXSRQ1 variant. |
Key Features
| Feature | Design Value |
|---|---|
| Stackable architecture | Enables parallel operation of identical-current devices (e.g., two TPS62872N3QWRXSRQ1 units) to deliver up to 24A with balanced current sharing and thermal spreading. |
| Active output discharge | Provides controlled 50–200mA constant-current or 6Ω resistive discharge path-ensures rapid, safe rail collapse during shutdown sequences. |
| Adjustable external compensation | Allows fine-tuning of loop stability across wide output capacitor ESR/C ranges and varying load dynamics without redesigning feedback network. |
| Wettable flank package | Enables reliable automated optical inspection (AOI) of solder joints-critical for zero-defect automotive manufacturing requirements. |
| Spread-spectrum operation | Reduces peak EMI by modulating switching frequency ±10% at fSW/2048-meets stringent CISPR 25 Class 5 radiated emissions limits in vehicle cabins. |
Applications
| Infotainment Power Supply | ADAS Domain Controller Core Rail |
|---|---|
|
Use Scenario: Powers application processors and GPU cores in automotive head units requiring dynamic voltage scaling and low-noise operation. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering 0.75V–1.2V at up to 12A with <100µs transient response to CPU load steps. Use Value: Differential remote sensing maintains ±1% regulation at SoC package balls despite 20mΩ PCB trace resistance, eliminating need for costly layout iterations. |
Use Scenario: Supplies power to radar SoCs and vision processors in autonomous driving ECUs operating continuously at elevated ambient temperatures. IC Role / Device Role / Timing Role: High-current, thermally robust DC/DC converter with 150°C thermal warning and 170°C shutdown-prevents thermal runaway in sealed enclosures. Use Value: 7mΩ/4.5mΩ MOSFETs enable >92% efficiency at 12A/0.85V, reducing heatsink size and enabling convection-only cooling in compact ADAS modules. |
| FPGA Core Voltage Regulation | DDR Memory VDDQ Supply |
|
Use Scenario: Delivers tightly regulated core voltage to Xilinx Zynq UltraScale+ or Intel Agilex FPGAs in vehicle compute gateways. IC Role / Device Role / Timing Role: Fast-transient buck converter with DCS-Control topology responding to 5A/µs load steps without exceeding ±30mV droop. Use Value: Resistor-selectable startup voltage (1.000V default) aligns with FPGA core initialization sequence, avoiding brownout during configuration. |
Use Scenario: Provides stable 1.25V or 1.35V VDDQ to LPDDR4/5 memory subsystems in telematics control units. IC Role / Device Role / Timing Role: Dual-sense buck regulator maintaining ±1% DC accuracy across –40°C to +125°C ambient and full load range. Use Value: Active output discharge ensures DDR VDDQ ramps down within 1ms during reset, meeting JEDEC tDIS timing requirements for reliable memory initialization. |
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 |
|---|---|---|---|
| TPS62872Y1QWRXSRQ1 | I²C-enabled variant with same 12A rating, 1.000V startup, and VQFN-16 package; supports real-time voltage/temperature monitoring and dynamic VOUT adjustment. | Required where firmware-controlled adaptive voltage scaling or health telemetry is needed (e.g., OTA-updatable ADAS ECUs). | Select when system-level functional safety requires runtime parameter verification or closed-loop thermal management. |
| MPQ4436-AEC1 | 12A AEC-Q100 Grade-1 buck with 2.5V–18V input, no I²C, fixed 500kHz–3MHz fSW, but lacks differential remote sensing and stackability. | Suitable for non-critical 12V-derived rails where PCB layout allows local sensing and single-device operation suffices. | Choose only if input voltage exceeds 6V or stackability/remote sensing are unnecessary-trade-off includes ±2% output accuracy and higher thermal stress. |
Compared with TPS62872Y1QWRXSRQ1, the TPS62872N3QWRXSRQ1 sacrifices I²C configurability for reduced BOM count and simplified layout (SDA/SCL grounded), while retaining identical thermal, electrical, and mechanical specs. Versus MPQ4436-AEC1, it delivers superior accuracy and scalability at the cost of narrower input range and higher design complexity for stacking.
Availability
TPS62872N3QWRXSRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS domain controllers, FPGA-based vehicle gateways, and DDR memory power supplies requiring stable component supply across extended temperature and long production lifecycles.
Supply support for TPS62872N3QWRXSRQ1 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 certified to AEC-Q100 and ISO 26262 functional safety standards.
The TPS6287x-Q1 product line was engineered specifically for high-current, high-reliability automotive DC/DC conversion-targeting next-generation ADAS, infotainment, and vehicle computing platforms demanding fast transients, precise regulation, and thermal resilience.
FAQ
What is the default startup output voltage of the TPS62872N3QWRXSRQ1?
The TPS62872N3QWRXSRQ1 has a factory-configured default startup output voltage of 1.000V, selected by connecting the VSEL pin to GND via a 6.2kΩ resistor. This value is one of four preprogrammed options (0.750V, 0.875V, 1.000V, 1.100V) determined by VSEL resistor value or connection to VIN/GND. The device retains this setting at power-on unless modified externally.
Does the TPS62872N3QWRXSRQ1 support I²C communication?
No, the TPS62872N3QWRXSRQ1 is a non-I²C variant of the TPS6287x-Q1 family. Its SDA and SCL pins are internally disabled and must be tied to GND per the datasheet. All I²C-related functions-including voltage/temperature readback, register programming, and dynamic VOUT adjustment-are unavailable. For I²C capability, select TPS62872Y1QWRXSRQ1 instead.
Can multiple TPS62872N3QWRXSRQ1 devices be stacked to increase output current?
Yes, the TPS62872N3QWRXSRQ1 supports stacking with identical-current devices to scale output current. Two units deliver 24A with synchronized switching via MODE/SYNC and SYNC_OUT daisy-chaining. Critical requirements include matching FSEL/VSEL resistor values, tying all COMP and EN pins together, and using identical inductors and output capacitors to ensure balanced current sharing and thermal distribution.
What thermal protection features does the TPS62872N3QWRXSRQ1 include?
The TPS62872N3QWRXSRQ1 integrates two thermal safeguards: a thermal warning flag asserted at 150°C junction temperature (TW), and thermal shutdown activation at 170°C (TSD), both with 20°C hysteresis. These signals are accessible via dedicated pins and enable system-level thermal management-such as fan speed ramping or processor throttling-before catastrophic failure occurs.
Is the TPS62872N3QWRXSRQ1 compatible with differential remote sensing?
Yes, the TPS62872N3QWRXSRQ1 fully supports differential remote sensing using dedicated VOSNS (output voltage sense) and GOSNS (output ground sense) pins. This architecture measures voltage directly at the load, compensating for PCB trace resistance and ensuring ±1% DC output accuracy across all operating conditions-including full load, temperature extremes, and line variations-without requiring layout-dependent compensation.
TPS62872N3QWRXSRQ1 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:
- Programmable
- 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:
- 12A
- Frequency - Switching:
- 1.5MHz, 2.25MHz, 2.5MHz, 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 16-VQFN (2.55x3.55)
TPS62872N3QWRXSRQ1 FAQ
1.How can I place an order for TPS62872N3QWRXSRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62872N3QWRXSRQ1 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 TPS62872N3QWRXSRQ1 reliable?
The price and inventory of TPS62872N3QWRXSRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62872N3QWRXSRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62872N3QWRXSRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62872N3QWRXSRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62872N3QWRXSRQ1?
TPS62872N3QWRXSRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62872N3QWRXSRQ1 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 TPS62872N3QWRXSRQ1?
For technical support, including TPS62872N3QWRXSRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62872N3QWRXSRQ1 requirements.
6.How does Aetrix verify that TPS62872N3QWRXSRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62872N3QWRXSRQ1 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 TPS62872N3QWRXSRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62872N3QWRXSRQ1?
All TPS62872N3QWRXSRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62872N3QWRXSRQ1, 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 TPS62872N3QWRXSRQ1 part is unused and in its original packaging.
Return procedure for TPS62872N3QWRXSRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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