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Texas Instruments TPS62870Y1QWRXSRQ1
- Part No.:
- TPS62870Y1QWRXSRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-TFQFN Exposed Pad
- Datasheet:
-
TPS62870Y1QWRXSRQ1.pdf
- Description:
- IC REG BUCK ADJ 6A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,328
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Product details
Overview
TPS62870Y1QWRXSRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering up to 6A continuous output current, supporting 2.7V–6V input, 0.4V–3.35V programmable output voltage with ±1% DC accuracy, and differential remote sensing for point-of-load regulation in infotainment and ADAS power rails.
For engineers reviewing the TPS62870Y1QWRXSRQ1 datasheet, TPS62870Y1QWRXSRQ1 pinout, TPS62870Y1QWRXSRQ1 application, or TPS62870Y1QWRXSRQ1 equivalent, key selection criteria include I²C interface (0x40 address, 0.800V startup), stackable 6A operation, 1.5–3.0MHz resistor-selectable switching frequency, thermal warning/thermal shutdown, and VQFN-FCRLF (RXS) 16-pin wettable flanks package compatibility.
Technical Context
The TPS62870Y1QWRXSRQ1 implements a fixed-frequency DCS-Control topology optimized for fast transient response in automotive core supplies, with integrated 7mΩ high-side and 4.5mΩ low-side MOSFETs enabling high efficiency at elevated ambient temperatures. Its differential remote sense inputs (VOSNS/GOSNS) maintain ±1% output voltage accuracy across load, line, and temperature variations.
It supports dual operating modes-power-save for peak efficiency and forced-PWM for minimal output ripple-and offers flexible clocking via FSEL pin (1.5/2.25/2.5/3.0MHz) or external synchronization. The I²C interface (up to 1MHz) enables real-time voltage adjustment, telemetry monitoring, and thermal event reporting without requiring hardware changes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6A continuous - supports high-current FPGA, ASIC, and DDR memory core rails without derating at TJ ≤ 150°C. |
| Input Voltage Range | 2.7V to 6V - compatible with 3.3V, 5V, and automotive battery-supplied systems including cold-crank conditions. |
| Output Voltage Accuracy | ±1% - guaranteed DC accuracy over –40°C to +125°C TA, enabled by differential remote sensing and internal trimming. |
| I²C Address & Startup | 0x40 / 0.800V - factory-configured I²C address tied to VSEL resistor (6.2kΩ to GND); enables deterministic boot voltage without external programming. |
| Switching Frequency | 1.5MHz to 3.0MHz - selectable via FSEL pin; higher frequencies allow smaller inductors (110–330nH) and reduced EMI footprint. |
| Thermal Protection | Thermal warning at 150°C TJ, shutdown at 170°C TJ - provides fail-safe operation in sealed automotive enclosures with no external sensor required. |
| Package | RXS (VQFN-FCRLF, 16-pin, 2.55mm × 3.55mm × 1mm) - wettable flanks enable automated optical inspection (AOI) and robust solder joint reliability per automotive standards. |
Pinout & Package
TPS62870Y1QWRXSRQ1 uses the RXS package: 2.55mm × 3.55mm × 1mm VQFN with wettable flanks and exposed thermal pad soldered to GND for optimal thermal performance (RθJA = 28°C/W on EVM).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COMP | Control loop compensation node | Connects external RC network to GOSNS; in stacked configurations, all COMP pins must be tied together for synchronized loop control. |
| VOSNS / GOSNS | Differential output voltage sense inputs | Enable true point-of-load regulation; reject PCB trace IR drop and ensure ±1% accuracy regardless of layout parasitics. |
| EN | Enable input with 15kΩ minimum series resistor | Assert high to start regulation; low disables device and reduces quiescent current to 40µA; interconnect required in stacked mode. |
| MODE/SYNC | Operating mode select / external clock input | Pull low for power-save mode (efficiency-optimized), high for forced-PWM (low ripple); also accepts external sync clock in 1.3–3.3MHz range. |
| SDA / SCL | I²C bidirectional data / clock | Supports 1MHz Fast Mode Plus; used for dynamic VOUT adjustment, telemetry readback, and thermal event flagging during runtime. |
| FSEL / VSEL | Frequency select / startup voltage select | FSEL sets switching frequency (1.5/2.25/2.5/3.0MHz); VSEL selects one of four factory-mapped startup voltages (0.800V here) via resistor divider. |
| PG | Open-drain power-good output | Signals valid regulation (92–98% undervoltage, 102–108% overvoltage window); daisy-chained in stacked mode with primary-only active drive. |
Key Features
| Feature | Design Value |
|---|---|
| Stackable architecture | Multiple TPS62870Y1QWRXSRQ1 units can be paralleled to scale current beyond 6A while distributing thermal load and reducing per-device stress. |
| Differential remote sensing | Compensates for PCB voltage drop between converter and load, ensuring ±1% regulation at the actual point-of-load-not just at the IC pins. |
| I²C programmability | Enables dynamic output voltage scaling (DVS) during system operation-e.g., lowering core voltage during low-performance states to reduce power consumption. |
| Adjustable external compensation | Allows fine-tuning of transient response and stability across varying output capacitor ESR/ESL and load profiles without changing IC. |
| Active output discharge | Provides controlled discharge path (50–200mA constant-current or 6Ω resistive) to prevent floating outputs during disable, critical for multi-rail sequencing. |
Applications
| Infotainment Power Supply | ADAS Domain Controller Rail |
|---|---|
|
Use Scenario: Powering SoC cores and GPU in automotive head units with dynamic workload demands. IC Role / Device Role / Timing Role: Primary 0.8V/6A core supply with I²C-adjustable voltage and fast transient response to handle burst-mode processing. Use Value: Maintains ±1% output accuracy under rapid load steps (0–6A in <1µs), eliminating need for post-regulation LDOs and reducing BOM count. |
Use Scenario: Supplying vision processor and radar SoCs in autonomous driving ECUs requiring high-reliability power. IC Role / Device Role / Timing Role: AEC-Q100 Grade 1 buck regulator with thermal warning and shutdown for functional safety-critical domains. Use Value: Enables ISO 26262 ASIL-B compliance via built-in diagnostics (I²C-readable thermal status, PG window comparator, and fault flags). |
| FPGA Core Voltage Rail | DDR Memory VDDQ Supply |
|
Use Scenario: Delivering stable 0.75V–1.2V to Xilinx/Zynq or Intel Agilex FPGA cores with tight voltage tolerance. IC Role / Device Role / Timing Role: High-efficiency synchronous buck with differential remote sensing to compensate for board-level IR drop. Use Value: Achieves <1% total output error across temperature and load, meeting FPGA vendor VCCINT spec without margin padding. |
Use Scenario: Generating 1.2V/1.35V/1.8V for LPDDR4/DDR5 memory interfaces in telematics gateways. IC Role / Device Role / Timing Role: Low-noise, forced-PWM mode converter with 1.5–3.0MHz switching to minimize switching artifacts near high-speed data lanes. Use Value: Reduces output voltage ripple to <10mVpp, preventing timing jitter and bit errors in memory read/write operations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62870QWRXSRQ1 | Same 6A rating and RXS package, but starts at 0.850V with I²C address 0x40; lacks Y1 suffix indicating alternate VSEL mapping. | Requires different VSEL resistor (6.2kΩ to GND still applies) but delivers higher default startup voltage-less suitable for sub-0.85V core rails. | Select TPS62870Y1QWRXSRQ1 when 0.800V startup is required for low-voltage SoC initialization sequences. |
| MPQ4436-AEC1 | 6A AEC-Q100 Grade 1 buck with 2.5V–6.5V input, no I²C, fixed 600kHz–2.2MHz frequency, ±1.5% output accuracy, QFN-13 package. | Lacks remote sensing, I²C programmability, and stackability-suited for cost-sensitive, non-dynamic applications without telemetry needs. | Choose MPQ4436-AEC1 only if I²C control, differential sensing, and multi-phase scalability are unnecessary and lower BOM cost is prioritized. |
Compared with TPS62870QWRXSRQ1, the TPS62870Y1QWRXSRQ1 provides identical functionality with a factory-trimmed 0.800V startup voltage-critical for compatibility with specific SoC power-on reset thresholds-while MPQ4436-AEC1 trades programmability and precision for integration simplicity and lower unit cost in static rail applications.
Availability
TPS62870Y1QWRXSRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS domain controllers, and FPGA-based telematics modules requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.
Supply support for TPS62870Y1QWRXSRQ1 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 solutions, with decades of experience in high-reliability automotive electronics.
The TPS6287x-Q1 product line was designed specifically for next-generation automotive computing platforms-delivering high-current, high-accuracy, and functionally safe DC/DC conversion for ADAS, digital clusters, and vehicle-to-everything (V2X) systems.
FAQ
What is the default I²C address and startup voltage of the TPS62870Y1QWRXSRQ1?
The TPS62870Y1QWRXSRQ1 has a factory-configured I²C address of 0x40 and a default startup output voltage of 0.800V, set by internal VSEL mapping. This configuration is fixed and does not require external programming-enabling immediate operation upon enable assertion. The VSEL pin retains its function for potential reconfiguration, but the default 0.800V ensures compatibility with low-voltage SoC power-on requirements without additional resistor networks.
How does the TPS62870Y1QWRXSRQ1 achieve ±1% output voltage accuracy in automotive environments?
The TPS62870Y1QWRXSRQ1 achieves ±1% DC output voltage accuracy through differential remote sensing (VOSNS/GOSNS), which measures voltage directly at the load to cancel PCB trace resistance effects, combined with factory-trimmed internal reference and closed-loop DCS-Control regulation. This accuracy is maintained across –40°C to +125°C ambient temperature and full 0–6A load range-verified per AEC-Q100 test conditions without external calibration.
Can multiple TPS62870Y1QWRXSRQ1 devices be stacked, and what are the requirements?
Yes, TPS62870Y1QWRXSRQ1 devices can be stacked to increase total output current beyond 6A. All stacked units must share identical current rating (i.e., only TPS62870Y1QWRXSRQ1 with other TPS62870Y1QWRXSRQ1), with synchronized MODE/SYNC pins, common COMP node, and daisy-chained SYNC_OUT to MODE/SYNC. EN and PG pins must also be interconnected using appropriate series resistors to ensure coordinated startup and fault signaling.
What thermal protection features does the TPS62870Y1QWRXSRQ1 provide, and how are they signaled?
The TPS62870Y1QWRXSRQ1 integrates thermal warning at 150°C junction temperature and thermal shutdown at 170°C, both with 20°C hysteresis. Thermal status is accessible via I²C register reads-no external sensor needed. The open-drain PG pin remains asserted only when output is within 92–108% of target voltage; it does not directly indicate thermal faults, making I²C telemetry essential for functional safety diagnostics.
Is the TPS62870Y1QWRXSRQ1 pin-compatible with other members of the TPS6287x-Q1 family?
Yes, the TPS62870Y1QWRXSRQ1 is pin-compatible with all TPS6287x-Q1 variants-including TPS62871-Q1 (9A), TPS62872-Q1 (12A), and TPS62873-Q1 (15A)-in the same RXS (VQFN-FCRLF, 16-pin) package. This allows scalable design reuse: a 6A layout can be upgraded to 9A/12A/15A simply by swapping the IC and adjusting output capacitance and inductor ratings, without PCB revision.
TPS62870Y1QWRXSRQ1 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:
- 6A
- 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)
TPS62870Y1QWRXSRQ1 FAQ
1.How can I place an order for TPS62870Y1QWRXSRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62870Y1QWRXSRQ1 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 TPS62870Y1QWRXSRQ1 reliable?
The price and inventory of TPS62870Y1QWRXSRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62870Y1QWRXSRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62870Y1QWRXSRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62870Y1QWRXSRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62870Y1QWRXSRQ1?
TPS62870Y1QWRXSRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62870Y1QWRXSRQ1 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 TPS62870Y1QWRXSRQ1?
For technical support, including TPS62870Y1QWRXSRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62870Y1QWRXSRQ1 requirements.
6.How does Aetrix verify that TPS62870Y1QWRXSRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62870Y1QWRXSRQ1 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 TPS62870Y1QWRXSRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62870Y1QWRXSRQ1?
All TPS62870Y1QWRXSRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62870Y1QWRXSRQ1, 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 TPS62870Y1QWRXSRQ1 part is unused and in its original packaging.
Return procedure for TPS62870Y1QWRXSRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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