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Texas Instruments TPS62872Y2QWRXSRQ1
- Part No.:
- TPS62872Y2QWRXSRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-TFQFN Exposed Pad
- Datasheet:
-
TPS62872Y2QWRXSRQ1.pdf
- Description:
- IC REG BUCK PROG 12A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,325
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Product details
Overview
TPS62872Y2QWRXSRQ1 from Texas Instruments is a 12A AEC-Q100 Grade-1 automotive synchronous step-down converter with I²C interface, differential remote sensing, and stackable architecture for high-current FPGA/ASIC core supplies. It operates from 2.7V–6V input, delivers ±1% output accuracy across 0.4V–3.35V range, and integrates 7mΩ/4.5mΩ MOSFETs in a 2.55mm × 3.55mm VQFN-FCRLF (RXS) package.
For engineers reviewing the TPS62872Y2QWRXSRQ1 datasheet, TPS62872Y2QWRXSRQ1 pinout, TPS62872Y2QWRXSRQ1 application, or TPS62872Y2QWRXSRQ1 equivalent, key selection criteria include its 12A continuous current rating, I²C-programmable voltage (1.75V/3.30V start-up options), 1.5–3.0MHz resistor-selectable switching frequency, thermal warning/thermal shutdown, and support for stacked operation with up to four devices.
Technical Context
The TPS62872Y2QWRXSRQ1 implements a fixed-frequency DCS-Control topology optimized for fast load transients in automotive infotainment and ADAS systems. Its differential remote sensing (VOSNS/GOSNS) enables point-of-load regulation, achieving better than ±1% DC accuracy under all operating conditions including temperature drift and PCB IR drop.
It supports dual operational modes via MODE/SYNC pin: power-save mode for peak efficiency at light loads, and forced-PWM mode for lowest output ripple and best transient response. The device also offers spread-spectrum operation and external clock synchronization (1.3–3.3MHz), with I²C interface (up to 1MHz) enabling real-time voltage adjustment, thermal monitoring, and fault reporting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 12A continuous - supports high-power digital cores without derating at +125°C ambient. |
| Input Voltage Range | 2.7V to 6V - compatible with 3.3V, 5V, and automotive battery rails (cold-crank tolerant). |
| Output Voltage Accuracy | ±1% - guaranteed over line, load, and temperature (–40°C to +125°C TA) with remote sense. |
| Switching Frequency | 1.5 / 2.25 / 2.5 / 3.0 MHz - resistor-selectable via FSEL pin; enables compact magnetics and EMI control. |
| I²C Interface Speed | Up to 1 MHz - supports rapid dynamic voltage scaling (DVS) for processor performance states. |
| Junction Temperature Range | –40°C to +150°C - meets AEC-Q100 Grade-1 requirements for under-hood and cluster applications. |
| Power-Save / Forced PWM | Selectable via MODE/SYNC pin - balances efficiency (≥92% at light load) and transient performance (≤10µs response). |
Pinout & Package
TPS62872Y2QWRXSRQ1 uses the RXS (VQFN-FCRLF, 16-pin) package: 2.55mm × 3.55mm × 1mm with wettable flanks for automated optical inspection (AOI) and robust solder joint reliability. 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 R-C network to GOSNS; in stacked configurations, all COMP pins are tied together. |
| VOSNS / GOSNS | Differential output voltage sense inputs | Enable true point-of-load regulation; reject PCB trace resistance errors for ±1% accuracy. |
| EN | Enable input with internal pulldown | Requires ≥15kΩ series resistor; low disables converter and reduces quiescent current to 40µA. |
| MODE/SYNC | Mode select / external clock sync input | Pull low for power-save; pull high for forced-PWM; accepts external clock (1.3–3.3MHz) for EMI reduction. |
| SDA / SCL | I²C bidirectional data/clock | Supports 1MHz Fast Mode Plus; used for voltage programming, thermal warnings, and status readback. |
| VSEL / FSEL | Resistor-programmable start-up voltage / frequency select | VSEL sets one of four factory-configured start-up voltages (1.75V/3.30V); FSEL selects 1.5/2.25/2.5/3.0MHz. |
| SYNC_OUT | Daisy-chain clock output | Drives MODE/SYNC of next device in stack; identifies secondary converters when pulled to GND via 47kΩ. |
Key Features
| Feature | Design Value |
|---|---|
| Differential remote sensing | Enables ±1% output accuracy at point-of-load by rejecting PCB IR drop-critical for sub-1V FPGA core rails. |
| Stackable 12A architecture | Four TPS62872Y2QWRXSRQ1 devices can be daisy-chained to deliver 48A with balanced current sharing and thermal distribution. |
| I²C programmability | Real-time voltage adjustment (1.75V/3.30V start-up options), thermal warning threshold configuration, and fault logging without hardware changes. |
| Thermal protection suite | Integrated thermal warning (150°C) and shutdown (170°C) with 20°C hysteresis-prevents damage during sustained overload or poor airflow. |
| Active output discharge | Provides controlled 50–200mA constant-current discharge path-ensures safe power-down sequencing for sensitive logic. |
Applications
| Infotainment Power Supply | ADAS Domain Controller |
|---|---|
Use Scenario: High-efficiency 12A supply for SoC cores and GPU in automotive head units with thermal constraints. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering dynamically scaled core voltage (0.75V–1.2V) with <10µs transient response. Use Value: Differential sensing maintains ±1% regulation despite 50mΩ PCB trace resistance; stackable design avoids single-point failure. |
Use Scenario: Powering radar/ADAS processors requiring stable 0.85V core rail with thermal margin in compact ECU housing. IC Role / Device Role / Timing Role: Automotive-grade step-down converter with AEC-Q100 Grade-1 qualification and functional safety documentation support. Use Value: Thermal warning output triggers system throttling before shutdown; I²C interface enables runtime diagnostics and firmware updates. |
| FPGA Core Supply | DDR Memory Subsystem |
Use Scenario: 12A core supply for Xilinx Zynq UltraScale+ MPSoC in vehicle compute modules. IC Role / Device Role / Timing Role: High-current buck converter with programmable soft-start (1ms default) and precise voltage accuracy for logic integrity. Use Value: Four start-up voltage options (1.75V/3.30V) simplify board bring-up; remote sense eliminates need for Kelvin traces. |
Use Scenario: Dual-rail supply for LPDDR4/DDR5 memory interfaces requiring tight voltage tolerance and low noise. IC Role / Device Role / Timing Role: Synchronous buck regulator delivering 1.1V/1.8V with <1% DC accuracy and <10mVpp ripple in forced-PWM mode. Use Value: 3.0MHz switching frequency enables small 110nH inductors; active discharge ensures clean memory reset during power cycling. |
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 | Same 12A rating and RXS package; fixed 0.875V start-up voltage and I²C address 0x42 (vs. 1.75V/3.30V and 0x32/0x33 for TPS62872Y2QWRXSRQ1). | Targeted at lower-voltage core rails (e.g., 0.85V ASIC cores); lacks dual-voltage flexibility for multi-rail systems. | Select when fixed 0.875V start-up suffices and I²C address conflict must be avoided in multi-device systems. |
| TPS62873Y2QWRXSRQ1 | 15A version with identical pinout, I²C interface, and 1.75V/3.30V start-up options; higher current capability and slightly higher rDS(on) (6.5mΩ/4.0mΩ vs. 7mΩ/4.5mΩ). | Suitable for future-proofing or higher-current derivatives (e.g., next-gen ADAS SoCs); requires validation of thermal margin at 15A. | Choose when >12A headroom is required and board layout accommodates same footprint with enhanced thermal design. |
Compared with TPS62872Y1QWRXSRQ1, TPS62872Y2QWRXSRQ1 provides flexible dual-voltage start-up for multi-rail systems; compared with TPS62873Y2QWRXSRQ1, it delivers optimal thermal performance at 12A with lower conduction loss in typical automotive core applications.
Availability
TPS62872Y2QWRXSRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS domain controllers, and FPGA-based vehicle compute platforms requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for TPS62872Y2QWRXSRQ1 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 ICs, with decades of automotive qualification expertise and functional safety infrastructure.
The TPS6287x-Q1 product line is engineered for high-reliability automotive power delivery-specifically targeting infotainment, ADAS, and digital core supplies where fast transients, remote sensing accuracy, and stackable current scalability are critical.
FAQ
What is the start-up output voltage configuration for TPS62872Y2QWRXSRQ1?
The TPS62872Y2QWRXSRQ1 supports two factory-programmed start-up voltages: 1.75V (I²C address 0x32) and 3.30V (I²C address 0x33), selected via resistor connection on the VSEL pin. This dual-voltage option simplifies design reuse across different SoC core voltage requirements without changing the bill of materials.
Does TPS62872Y2QWRXSRQ1 support stacking with other TPS6287x-Q1 devices?
Yes, TPS62872Y2QWRXSRQ1 supports daisy-chained stacking with up to three additional identical 12A devices using SYNC_OUT and MODE/SYNC pins. All stacked devices must share the same current rating (12A), and COMP, EN, and PG pins must be interconnected per TI's layout guidelines to ensure balanced current sharing and synchronized operation.
What thermal protection features does TPS62872Y2QWRXSRQ1 provide?
TPS62872Y2QWRXSRQ1 integrates thermal warning at 150°C (with 20°C hysteresis) and thermal shutdown at 170°C (also with 20°C hysteresis). Both thresholds are junction-based and trigger dedicated open-drain outputs-enabling system-level thermal management such as fan activation or processor throttling before catastrophic failure occurs.
How does the differential remote sensing work on TPS62872Y2QWRXSRQ1?
TPS62872Y2QWRXSRQ1 uses dedicated VOSNS (output voltage sense) and GOSNS (output ground sense) pins to measure voltage directly at the load, rejecting voltage drop across PCB traces and connectors. This achieves better than ±1% DC accuracy across –40°C to +125°C ambient, eliminating the need for Kelvin routing in space-constrained automotive layouts.
What are the I²C address options for TPS62872Y2QWRXSRQ1?
TPS62872Y2QWRXSRQ1 has two fixed I²C addresses determined by start-up voltage: 0x32 for 1.75V and 0x33 for 3.30V. These addresses are factory-programmed and cannot be changed via software or external pins-ensuring deterministic bus arbitration in multi-device systems without address conflicts.
TPS62872Y2QWRXSRQ1 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 16-VQFN (2.55x3.55)
TPS62872Y2QWRXSRQ1 FAQ
1.How can I place an order for TPS62872Y2QWRXSRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62872Y2QWRXSRQ1 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 TPS62872Y2QWRXSRQ1 reliable?
The price and inventory of TPS62872Y2QWRXSRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62872Y2QWRXSRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62872Y2QWRXSRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62872Y2QWRXSRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62872Y2QWRXSRQ1?
TPS62872Y2QWRXSRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62872Y2QWRXSRQ1 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 TPS62872Y2QWRXSRQ1?
For technical support, including TPS62872Y2QWRXSRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62872Y2QWRXSRQ1 requirements.
6.How does Aetrix verify that TPS62872Y2QWRXSRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62872Y2QWRXSRQ1 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 TPS62872Y2QWRXSRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62872Y2QWRXSRQ1?
All TPS62872Y2QWRXSRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62872Y2QWRXSRQ1, 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 TPS62872Y2QWRXSRQ1 part is unused and in its original packaging.
Return procedure for TPS62872Y2QWRXSRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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