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Texas Instruments TPS62872Y4QWRXSRQ1
- Part No.:
- TPS62872Y4QWRXSRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-TFQFN Exposed Pad
- Datasheet:
-
TPS62872Y4QWRXSRQ1.pdf
- Description:
- IC REG BUCK ADJ 12A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TPS62872Y4QWRXSRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering up to 12A continuous output current, supporting 2.7V–6V input, ±1% output voltage accuracy with differential remote sensing, and I²C interface (up to 1 MHz) for dynamic voltage scaling in FPGA/ASIC core supplies.
For engineers reviewing the TPS62872Y4QWRXSRQ1 datasheet, TPS62872Y4QWRXSRQ1 pinout, TPS62872Y4QWRXSRQ1 application, or TPS62872Y4QWRXSRQ1 equivalent, key selection criteria include its stackable 12A capability, resistor-selectable switching frequency (1.5/2.25/2.5/3.0 MHz), thermal warning/thermal shutdown protection, and VQFN-FCRLF (RXS) 16-pin wettable flanks package for automotive PCB reliability.
Technical Context
The TPS62872Y4QWRXSRQ1 implements a fixed-frequency DCS-Control topology optimized for fast load transients and low output voltage ripple, with dual-mode operation (power-save for efficiency or forced-PWM for transient performance). Its differential remote sensing (VOSNS/GOSNS) enables point-of-load regulation achieving better than ±1% DC accuracy across temperature and load.
It supports stacking of identical-current devices for higher output current or thermal spreading, with dedicated SYNC_OUT/MODE/SYNC daisy-chaining, coordinated EN/PG interconnection, and shared COMP compensation network. The I²C interface provides real-time voltage monitoring, thermal warnings, and programmable start-up voltage selection via VSEL pin mapping to I²C address (0x40–0x43).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 12A continuous - supports high-power digital cores without external current sharing circuitry |
| Input Voltage Range | 2.7V to 6V - compatible with 3.3V, 5V, and automotive battery-supplied rails |
| Output Voltage Accuracy | ±1% - guaranteed DC accuracy under all operating conditions including load, line, and temperature variation |
| Switching Frequency | 1.5 / 2.25 / 2.5 / 3.0 MHz (resistor-selectable via FSEL) - enables compact magnetics and EMI optimization |
| I²C Interface Speed | Up to 1 MHz - supports rapid dynamic voltage scaling (DVS) for processor power states |
| Junction Temperature Range | –40°C to +150°C - meets AEC-Q100 Grade 1 requirements for under-hood automotive applications |
| Internal MOSFET RDS(on) | 7 mΩ (HS) / 4.5 mΩ (LS) - minimizes conduction loss at 12A, enabling high efficiency at elevated ambient temperatures |
Pinout & Package
TPS62872Y4QWRXSRQ1 is housed in a 2.55 mm × 3.55 mm × 1.0 mm VQFN-FCRLF (RXS) package with wettable flanks, designed for automated optical inspection (AOI) and robust solder joint reliability in automotive production.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COMP | Control loop compensation node | Connects external RC network to GOSNS; must be tied together across stacked devices for stable multi-phase operation |
| VOSNS / GOSNS | Differential output voltage sense inputs | Enable true point-of-load regulation; reject PCB trace IR drop for ±1% accuracy at load terminals |
| EN | Enable control input | Active-high logic; requires ≥15 kΩ series resistor; interconnect across stacked devices for synchronized startup |
| MODE/SYNC | Operating mode select / external clock sync input | Pull low for power-save mode; pull high for forced-PWM; accepts external clock (1.3–3.3 MHz) for EMI reduction |
| SDA / SCL | I²C serial data/clock | Supports 1 MHz fast-mode-plus; internal pullups active; secondary devices in stack require SDA/SCL tied to GND |
| VSEL / FSEL | Startup voltage / switching frequency select | Resistor-to-GND/VIN selects one of four factory-programmed VOUT startup values (0.85V/0.75V/0.875V/0.85V) and fSW |
| SYNC_OUT | Internal clock output | Daisy-chains to MODE/SYNC of next device in stack; defines secondary role when pulled to GND via 47 kΩ |
| PG | Open-drain power-good indicator | Window comparator output (92–98% UV, 102–108% OV); primary device only outputs; secondaries use as input in stack |
Key Features
| Feature | Design Value |
|---|---|
| Stackable architecture | Enables scalable current delivery (e.g., two TPS62872Y4QWRXSRQ1 = 24A) with automatic current balancing and shared thermal management |
| Differential remote sensing | Compensates for PCB voltage drop between converter and load, ensuring ±1% regulation accuracy at the actual point-of-load |
| Thermal warning & shutdown | Provides early overtemperature alert at 150°C (TW) and hard shutdown at 170°C (TSD), with 20°C hysteresis for system-level fault recovery |
| Active output discharge | Integrates controlled 50–200 mA constant-current discharge path to safely collapse VOUT during disable, preventing floating rail issues |
| Adjustable external compensation | Allows fine-tuning of loop stability across wide output capacitor ranges (40 µF to several mF) and varying load dynamics |
Applications
| Infotainment and Cluster Power | ADAS Domain Controller Supply |
|---|---|
|
Use Scenario: Powering SoC, GPU, and display interfaces in automotive head units and digital instrument clusters requiring tight voltage tolerance and fast transient response. IC Role / Device Role / Timing Role: Primary core supply regulator with I²C-controlled dynamic voltage scaling to match processing load and reduce idle power. Use Value: Maintains ±1% output accuracy under load steps up to 6A/µs while enabling firmware-driven voltage/frequency scaling for thermal and energy optimization. |
Use Scenario: Delivering clean, stable 0.8–1.2V rails to radar, camera, and AI accelerator SoCs in autonomous driving ECUs. IC Role / Device Role / Timing Role: High-current buck converter with differential sensing and thermal warning, integrated into redundant power domains. Use Value: Enables safe operation up to 150°C junction temperature with early thermal alerts, supporting ASIL-B functional safety compliance. |
| FPGA Core Voltage Supply | DDR Memory Subsystem |
|
Use Scenario: Providing adaptive core voltage (e.g., 0.75V–1.0V) to Xilinx/Zynq or Intel Agilex FPGAs in reconfigurable automotive compute modules. IC Role / Device Role / Timing Role: Programmable I²C-regulated buck converter with soft-start and power-good sequencing for FPGA configuration integrity. Use Value: Achieves <0.65 ms output ramp time and <46 µs PG deglitching, ensuring reliable FPGA boot and state retention during brownouts. |
Use Scenario: Supplying DDR4/LPDDR4 termination and core voltages (1.2V/1.1V/0.6V) in telematics and gateway ECUs. IC Role / Device Role / Timing Role: Low-noise, high-efficiency buck regulator with spread-spectrum option to minimize EMI near high-speed memory buses. Use Value: Reduces peak spectral energy by ±10% via spread-spectrum mode, easing EMC certification for memory subsystems in crowded vehicle RF environments. |
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, RXS package, and I²C interface, but factory-configured for 0.750V startup (I²C addr 0x41) vs. TPS62872Y4QWRXSRQ1's 0.850V (0x40) | Optimized for lower-voltage FPGA cores where 0.75V startup aligns with default configuration sequences | Select when system firmware expects 0.75V initial VOUT and uses I²C address 0x41 for register access |
| TPS62872N1QWRXSRQ1 | No I²C interface; fixed-function variant with same 12A rating, RXS package, and 0.875V startup; lacks dynamic voltage control and telemetry | Suitable for cost-sensitive, non-reconfigurable systems where voltage is static and telemetry is unnecessary | Choose when I²C functionality is unused and BOM simplification outweighs programmability benefits |
Compared with TPS62872Y1QWRXSRQ1, TPS62872Y4QWRXSRQ1 offers higher default startup voltage (0.85V vs. 0.75V) and distinct I²C address (0x40), enabling parallel deployment in multi-rail systems; versus TPS62872N1QWRXSRQ1, it adds full I²C configurability at the cost of two pins and minor layout overhead.
Availability
TPS62872Y4QWRXSRQ1 is available at Aetrix Electronics and suitable for infotainment, ADAS, FPGA core, and DDR memory supply applications requiring stable component supply, AEC-Q100 qualification, and long-term automotive lifecycle support.
Supply support for TPS62872Y4QWRXSRQ1 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 and functional safety documentation support.
The TPS6287x-Q1 product line was engineered specifically for high-current, high-reliability automotive power delivery-targeting infotainment, ADAS, and domain controller applications demanding fast transients, remote sensing, and I²C programmability.
FAQ
What is the maximum continuous output current supported by the TPS62872Y4QWRXSRQ1?
The TPS62872Y4QWRXSRQ1 delivers up to 12A continuous output current under recommended operating conditions (TJ ≤ 150°C, VIN = 2.7V–6V). This rating is validated across the full AEC-Q100 Grade 1 temperature range (–40°C to +125°C ambient) with proper PCB thermal design and input/output capacitance.
Does the TPS62872Y4QWRXSRQ1 support stacking with other devices, and what are the requirements?
Yes, the TPS62872Y4QWRXSRQ1 supports stacking with identical-current TPS6287x-Q1 devices (e.g., another TPS62872Y4QWRXSRQ1) to increase total output current or distribute thermal load. All stacked devices must share the same current rating, have interconnected EN/PG/COMP pins, and use daisy-chained SYNC_OUT → MODE/SYNC signals for synchronization.
What are the startup voltage options and how are they selected on the TPS62872Y4QWRXSRQ1?
The TPS62872Y4QWRXSRQ1 supports four factory-programmed startup voltages: 0.850V (I²C addr 0x40), 0.750V (0x41), 0.875V (0x42), and 0.850V (0x43). Selection is made via resistor or short on the VSEL pin (to GND, VIN, or open), which also determines the I²C address-no software configuration required at power-on.
How does the differential remote sensing feature improve regulation accuracy in the TPS62872Y4QWRXSRQ1?
The TPS62872Y4QWRXSRQ1 uses dedicated VOSNS and GOSNS pins to measure output voltage directly at the load, rejecting voltage drop across PCB traces and connectors. This enables better than ±1% DC regulation accuracy at the point-of-load under all operating conditions-critical for low-voltage, high-current digital loads like SoCs and FPGAs.
What thermal protection features are integrated into the TPS62872Y4QWRXSRQ1?
The TPS62872Y4QWRXSRQ1 integrates thermal warning (TW) at 150°C and thermal shutdown (TSD) at 170°C, both with 20°C hysteresis. It also provides an open-drain thermal warning flag via the PG pin in window-comparator mode, allowing host processors to initiate thermal throttling before shutdown occurs.
TPS62872Y4QWRXSRQ1 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:
- 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)
TPS62872Y4QWRXSRQ1 FAQ
1.How can I place an order for TPS62872Y4QWRXSRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62872Y4QWRXSRQ1 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 TPS62872Y4QWRXSRQ1 reliable?
The price and inventory of TPS62872Y4QWRXSRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62872Y4QWRXSRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62872Y4QWRXSRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62872Y4QWRXSRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62872Y4QWRXSRQ1?
TPS62872Y4QWRXSRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62872Y4QWRXSRQ1 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 TPS62872Y4QWRXSRQ1?
For technical support, including TPS62872Y4QWRXSRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62872Y4QWRXSRQ1 requirements.
6.How does Aetrix verify that TPS62872Y4QWRXSRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62872Y4QWRXSRQ1 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 TPS62872Y4QWRXSRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62872Y4QWRXSRQ1?
All TPS62872Y4QWRXSRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62872Y4QWRXSRQ1, 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 TPS62872Y4QWRXSRQ1 part is unused and in its original packaging.
Return procedure for TPS62872Y4QWRXSRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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