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Texas Instruments TPS62870Y0QWRXSRQ1
- Part No.:
- TPS62870Y0QWRXSRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-TFQFN Exposed Pad
- Datasheet:
-
TPS62870Y0QWRXSRQ1.pdf
- Description:
- IC REG BUCK ADJ 6A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,806
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Product details
Overview
TPS62870Y0QWRXSRQ1 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 high-performance core supplies.
For engineers reviewing the TPS62870Y0QWRXSRQ1 datasheet, TPS62870Y0QWRXSRQ1 pinout, TPS62870Y0QWRXSRQ1 application, or TPS62870Y0QWRXSRQ1 equivalent, key selection criteria include I²C interface support (0x40 address), 0.500V default startup voltage, stackable architecture for current scaling, thermal warning/thermal shutdown, and VQFN-FCRLF (RXS) 16-pin wettable flanks package compatibility.
Technical Context
The TPS62870Y0QWRXSRQ1 implements a fixed-frequency DCS-Control topology optimized for fast transient response in automotive infotainment and ADAS power rails. It supports resistor-selectable switching frequencies (1.5/2.25/2.5/3.0 MHz) via FSEL and four startup voltage options (0.500V/0.750V/0.875V/1.050V) via VSEL, all accessible through its I²C interface up to 1 MHz.
Differential remote sensing (VOSNS/GOSNS) enables precise regulation at the load under dynamic conditions, while internal 7 mΩ high-side and 4.5 mΩ low-side MOSFETs sustain high efficiency across –40°C to +125°C ambient and up to +150°C junction temperature. Power-save or forced-PWM operation modes allow trade-offs between light-load efficiency and output ripple control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 6V - supports wide automotive battery rail variation including cold-crank and load-dump conditions. |
| Output Current | 6A continuous - rated for sustained operation at full load across –40°C to +125°C ambient temperature. |
| Output Voltage Accuracy | ±1% - guaranteed DC accuracy over line, load, and temperature, enabled by differential remote sensing. |
| Switching Frequency | 1.5 / 2.25 / 2.5 / 3.0 MHz - selectable via FSEL resistor; allows EMI optimization and compact filter design. |
| I²C Interface Speed | Up to 1 MHz - enables real-time voltage adjustment, telemetry monitoring, and fault reporting in system-level power management. |
| Startup Voltage | 0.500V - factory-configured default output voltage selected via 6.2kΩ-to-GND on VSEL pin. |
| I²C Address | 0x40 - fixed address tied to 0.500V startup option; enables multi-device addressing in stacked configurations. |
| Junction Temperature Range | –40°C to +150°C - qualified for under-hood and high-temperature module applications per AEC-Q100 Grade 1. |
Pinout & Package
TPS62870Y0QWRXSRQ1 is housed in a 2.55mm × 3.55mm × 1mm VQFN-FCRLF (RXS) package with wettable flanks for automated optical inspection (AOI) and enhanced thermal performance via exposed thermal pad soldered to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COMP | Control loop compensation node | Connects external RC network to GOSNS to stabilize feedback loop; must be shared across stacked devices. |
| GOSNS | Differential ground sense input | Measures return path voltage drop to enable accurate point-of-load regulation; rejects PCB trace resistance error. |
| VOSNS | Differential output voltage sense input | Monitors regulated output at load; used with GOSNS to achieve ±1% DC accuracy independent of board IR drop. |
| EN | Enable control input | Active-high logic input requiring ≥15kΩ series resistor; disables device and reduces quiescent current to 40 µA when low. |
| VIN (Pins 5,9) | Main power input | Accepts 2.7V–6V supply; requires local ceramic decoupling capacitors on both sides of package for EMI suppression. |
| GND (Pins 6,8) | Power ground reference | Low-impedance return path for high-current switching; connects directly to thermal pad for thermal dissipation. |
| SW | Power switch node | Drives external inductor; switches between VIN and GND via internal 7 mΩ/4.5 mΩ MOSFET pair. |
| PG | Open-drain power-good indicator | Signals valid output regulation (92–108% window); tied together in stacked mode with primary device driving output. |
| MODE/SYNC | Operating mode select / clock sync input | Pulled low for power-save mode; pulled high for forced-PWM; accepts external clock for synchronization. |
| SDA / SCL | I²C bidirectional data / clock | Supports 1 MHz communication for voltage programming, telemetry, and fault alerts; requires pullup resistors. |
| VSEL | Startup voltage selection | Resistor-to-GND (6.2kΩ) sets 0.500V default output; determines I²C address (0x40) and enables multi-voltage boot. |
| FSEL | Switching frequency selection | Resistor-to-GND/VIN selects 1.5/2.25/2.5/3.0 MHz; enables EMI spread-spectrum or external clock synchronization. |
| SYNC_OUT | Internal clock output | Daisy-chains to MODE/SYNC of next device in stack; identifies secondary role when pulled to GND via 47kΩ. |
Key Features
| Feature | Design Value |
|---|---|
| Differential remote sensing | Enables ±1% output voltage regulation at point-of-load by rejecting PCB trace resistance effects in high-current paths. |
| Stackable architecture | Allows parallel connection of multiple TPS62870Y0QWRXSRQ1 units to scale output current beyond 6A while distributing thermal load. |
| I²C programmability | Permits dynamic output voltage adjustment, telemetry readback (voltage, temperature), and configurable warnings without hardware changes. |
| Thermal warning & shutdown | Asserts thermal warning at 150°C junction and shuts down at 170°C with 20°C hysteresis-critical for automotive safety compliance. |
| Active output discharge | Provides controlled 50–200 mA constant-current or 6 Ω resistive discharge path to prevent floating outputs during disable. |
| Wettable flanks VQFN | Enables reliable AOI inspection of solder joints on bottom-side pins-essential for zero-defect automotive manufacturing requirements. |
Applications
| Infotainment & Cluster Power | ADAS Domain Controller Core Supply |
|---|---|
|
Use Scenario: Powering SoCs and display processors in automotive head units and digital instrument clusters requiring stable low-voltage rails. IC Role / Device Role / Timing Role: Primary core voltage regulator delivering 0.500V–1.050V at up to 6A with fast transient response to handle burst-mode GPU/CPU loads. Use Value: Differential sensing maintains ±1% regulation despite PCB IR drop from long interconnects to SoC BGA pads. |
Use Scenario: Supplying vision-processing ASICs and radar SoCs in autonomous driving ECUs where thermal margin and reliability are critical. IC Role / Device Role / Timing Role: High-efficiency buck converter operating in forced-PWM mode to minimize output ripple during image sensor frame capture. Use Value: 150°C thermal warning and 170°C shutdown protect against thermal runaway in sealed ADAS enclosures. |
| FPGA Core Voltage Supply | DDR Memory Subsystem |
|
Use Scenario: Delivering tightly regulated core voltage to automotive-grade FPGAs used in reconfigurable vehicle control modules. IC Role / Device Role / Timing Role: Programmable I²C interface enables dynamic voltage scaling (DVS) synchronized with FPGA configuration states. Use Value: 0.500V startup voltage matches typical FPGA core initialization requirements; 1 MHz I²C allows rapid voltage updates. |
Use Scenario: Generating DDR4/DDR5 VDDQ and VDDIO rails in telematics gateways and central domain controllers. IC Role / Device Role / Timing Role: Dual-rail capable converter (via stacking) supplies matched, low-noise 1.1V/1.2V rails with tight tracking. Use Value: Stackable design ensures current sharing accuracy and thermal balance across dual-channel DDR memory interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62870N0QWRXSRQ1 | No I²C interface; fixed 0.500V startup; spread-spectrum enabled by default; soft-start time reduced to 0.5ms. | Lacks runtime voltage reconfiguration and telemetry; suitable only for static-voltage, cost-sensitive designs. | Select when I²C functionality is unnecessary and lower BOM count is prioritized over programmability. |
| TPS62871Y1QWRXSRQ1 | 9A output rating; same package and pinout; identical I²C features but higher current capability and 0.750V default startup. | Delivers higher current for upgraded SoC platforms; requires updated thermal design and inductor selection. | Choose when system power demand exceeds 6A and board layout allows same-footprint upgrade with minimal redesign. |
Compared with TPS62870N0QWRXSRQ1, the TPS62870Y0QWRXSRQ1 adds essential I²C-based system-level power management; compared with TPS62871Y1QWRXSRQ1, it provides optimal fit for 6A-class SoCs with tighter thermal constraints and lower cost-per-watt in volume production.
Availability
TPS62870Y0QWRXSRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS domain controllers, and FPGA-based vehicle control modules requiring stable component supply, AEC-Q100 qualification, and functional safety documentation support.
Supply support for TPS62870Y0QWRXSRQ1 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 and functional safety-compliant design.
The TPS6287x-Q1 product line was engineered specifically for high-current, low-voltage core supplies in automotive ADAS, infotainment, and domain controller applications-emphasizing fast transients, remote sensing accuracy, and stackable scalability.
FAQ
What is the default startup output voltage of the TPS62870Y0QWRXSRQ1?
The TPS62870Y0QWRXSRQ1 has a factory-configured default startup output voltage of 0.500V, set by connecting a 6.2kΩ resistor from the VSEL pin to GND. This voltage corresponds to I²C address 0x40 and is one of four selectable startup options supported by the device's VSEL pin configuration.
Does the TPS62870Y0QWRXSRQ1 support stacking with other devices?
Yes, the TPS62870Y0QWRXSRQ1 supports stacking with identical current-rated devices (e.g., other TPS62870Y0QWRXSRQ1 units) to increase total output current. Stacking requires interconnecting COMP, EN, PG, and SYNC_OUT pins per TI's layout guidelines, and all stacked devices must share the same VSEL and FSEL configurations to ensure synchronized operation.
What package type and thermal characteristics does the TPS62870Y0QWRXSRQ1 use?
The TPS62870Y0QWRXSRQ1 uses a 2.55mm × 3.55mm × 1mm VQFN-FCRLF (RXS) package with wettable flanks and an exposed thermal pad. Its junction-to-board thermal resistance (RθJB) is 7.7°C/W, enabling efficient heat transfer to the PCB, and it operates across a junction temperature range of –40°C to +150°C per AEC-Q100 Grade 1 requirements.
How does the differential remote sensing feature improve regulation accuracy in the TPS62870Y0QWRXSRQ1?
The TPS62870Y0QWRXSRQ1 uses dedicated VOSNS and GOSNS pins to measure output voltage and return-path voltage directly at the load. This differential sensing rejects voltage drops across PCB traces and connectors, ensuring ±1% DC output accuracy regardless of board layout or current level-critical for low-voltage, high-current SoC cores.
What are the key functional safety features supported by the TPS62870Y0QWRXSRQ1?
The TPS62870Y0QWRXSRQ1 is functional safety-capable with documented failure modes, FIT rate data, and safety analysis reports available from Texas Instruments. It includes thermal warning (150°C), thermal shutdown (170°C), power-good window comparator (92–108% VOUT), and active output discharge-enabling integration into ASIL-B and ASIL-C automotive safety architectures.
TPS62870Y0QWRXSRQ1 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)
TPS62870Y0QWRXSRQ1 FAQ
1.How can I place an order for TPS62870Y0QWRXSRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62870Y0QWRXSRQ1 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 TPS62870Y0QWRXSRQ1 reliable?
The price and inventory of TPS62870Y0QWRXSRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62870Y0QWRXSRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62870Y0QWRXSRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62870Y0QWRXSRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62870Y0QWRXSRQ1?
TPS62870Y0QWRXSRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62870Y0QWRXSRQ1 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 TPS62870Y0QWRXSRQ1?
For technical support, including TPS62870Y0QWRXSRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62870Y0QWRXSRQ1 requirements.
6.How does Aetrix verify that TPS62870Y0QWRXSRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62870Y0QWRXSRQ1 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 TPS62870Y0QWRXSRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62870Y0QWRXSRQ1?
All TPS62870Y0QWRXSRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62870Y0QWRXSRQ1, 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 TPS62870Y0QWRXSRQ1 part is unused and in its original packaging.
Return procedure for TPS62870Y0QWRXSRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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