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Texas Instruments TPS62870Y2QWRXSRQ1
- Part No.:
- TPS62870Y2QWRXSRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-TFQFN Exposed Pad
- Datasheet:
-
TPS62870Y2QWRXSRQ1.pdf
- Description:
- IC REG BUCK ADJ 6A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,626
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Product details
Overview
TPS62870Y2QWRXSRQ1 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 processor cores.
For engineers reviewing the TPS62870Y2QWRXSRQ1 datasheet, TPS62870Y2QWRXSRQ1 pinout, TPS62870Y2QWRXSRQ1 application, or TPS62870Y2QWRXSRQ1 equivalent, key selection considerations include I²C-configurable startup voltage (1.800V), 16-pin VQFN-FCRLF (RXS) package with wettable flanks, stackable architecture for current scaling, thermal warning/thermal shutdown, and forced-PWM/power-save mode control via MODE/SYNC pin.
Technical Context
The TPS62870Y2QWRXSRQ1 implements a fixed-frequency DCS-Control topology optimized for fast transient response and low output voltage ripple. It integrates 7mΩ high-side and 4.5mΩ low-side MOSFETs, supports resistor-selectable switching frequencies (1.5/2.25/2.5/3.0 MHz), and enables external clock synchronization or spread-spectrum operation to reduce EMI.
Differential remote sensing (VOSNS/GOSNS) ensures ±1% output voltage accuracy across load, line, and temperature variations. The device features adjustable external compensation (COMP pin), active output discharge, power-good window comparator (PG), and I²C interface (up to 1 MHz) for real-time voltage/temperature monitoring and dynamic output adjustment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 6V - supports wide automotive battery rail including cold-crank and load-dump conditions. |
| Max Output Current | 6A continuous - rated for ambient temperatures up to +125°C with appropriate PCB thermal design. |
| Output Voltage Accuracy | ±1% - guaranteed over full operating range using differential remote sensing at point-of-load. |
| Startup Voltage | 1.800V - factory-configured via VSEL pin (6.2kΩ to GND), I²C address 0x30. |
| Switching Frequency | Resistor-selectable: 1.5/2.25/2.5/3.0 MHz - enables optimization of efficiency, size, and EMI performance. |
| I²C Interface Speed | Up to 1 MHz - supports fast configuration and telemetry updates without interrupting power delivery. |
| Junction Temperature Range | –40°C to +150°C - qualified for under-hood and infotainment module placement. |
Pinout & Package
TPS62870Y2QWRXSRQ1 is housed in a 2.55mm × 3.55mm × 1mm 16-pin VQFN-FCRLF (RXS) package with wettable flanks for automated optical inspection (AOI) and enhanced thermal performance. The exposed thermal pad must be soldered to GND for optimal thermal resistance (RθJB = 7.7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (COMP) | Control loop compensation input | Connects external RC network to GOSNS to stabilize feedback loop; shared across stacked devices. |
| 2 (GOSNS) | Differential ground sense input | Measures return path voltage drop to enable precise point-of-load regulation. |
| 3 (VOSNS) | Differential output voltage sense input | Monitors actual output at load; paired with GOSNS for <±1% accuracy under all conditions. |
| 4 (EN) | Enable control input | Active-high logic input (min. 15kΩ series resistor); disables converter and reduces quiescent current to 40µA. |
| 5,9 (VIN) | Main power input | Two independent VIN pins reduce IR drop and improve high-current routing; each requires local 5–10µF ceramic capacitor. |
| 6,8 (GND) | Ground reference | Dual GND pins minimize ground impedance; thermal pad must be connected to system GND plane. |
| 7 (SW) | Power switch node | Connects to external inductor; carries high di/dt switching current; requires tight layout to minimize EMI. |
| 10 (PG) | Power-good open-drain output | Signals valid output (92–98% UV / 102–108% OV window); pulled high externally when enabled. |
| 11 (MODE/SYNC) | Mode control / external sync input | Pull-low for power-save mode; pull-high for forced-PWM; accepts external clock for synchronization. |
| 12 (SDA) | I²C serial data bidirectional | Supports read/write of registers (voltage, temp, status); requires pull-up resistor; tied to GND in secondary stack roles. |
| 13 (SCL) | I²C serial clock input | Accepts up to 1 MHz clock; requires pull-up resistor; tied to GND in secondary stack roles. |
| 14 (SYNC_OUT) | Internal clock output | Drives MODE/SYNC of next device in daisy-chained stack; used to identify secondary converters via 47kΩ-to-GND. |
| 15 (VSEL) | Startup voltage select | Configures default output voltage at startup (1.800V for this variant via 6.2kΩ to GND). |
| 16 (FSEL) | Frequency select | Resistor-programmable switching frequency (1.5/2.25/2.5/3.0 MHz); internal pull-up/pull-down resistors provided. |
Key Features
| Feature | Design Value |
|---|---|
| Differential remote sensing | Enables ±1% output voltage regulation at point-of-load by rejecting PCB trace IR drops. |
| Stackable architecture | Allows parallel connection of identical TPS6287x-Q1 devices to scale output current (e.g., two 6A devices = 12A) while distributing thermal load. |
| I²C interface with 1MHz support | Permits dynamic output voltage adjustment, real-time temperature monitoring, and fault reporting without hardware changes. |
| Thermal warning and shutdown | Asserts thermal warning at 150°C junction and shuts down at 170°C with 20°C hysteresis for robust overtemperature protection. |
| Active output discharge | Discharges output capacitance via internal 6Ω resistor or constant-current sink (50–200mA) to prevent floating voltages during disable. |
| Adjustable external compensation | Allows fine-tuning of loop stability across varied output capacitors, inductors, and load conditions using COMP pin network. |
Applications
| Infotainment Power Supply | ADAS Domain Controller Core Rail |
|---|---|
|
Use Scenario: Powers SoC cores and GPU in automotive head units requiring stable 0.75V–1.2V at up to 6A with fast load transients during UI rendering or video decode. IC Role / Device Role / Timing Role: Primary synchronous buck regulator with differential remote sensing and I²C-adjustable voltage for dynamic power management. Use Value: Maintains ±1% output accuracy despite PCB IR drop and thermal drift, enabling reliable operation across –40°C to +125°C ambient. |
Use Scenario: Supplies 0.85V core voltage to radar or vision processing SoCs in ADAS ECUs where EMI-sensitive analog front-ends coexist on same PCB. IC Role / Device Role / Timing Role: High-efficiency, spread-spectrum-capable buck converter with synchronized switching to minimize spectral peaks near critical bands. Use Value: Reduces conducted EMI through selectable spread-spectrum mode and 3.0MHz max switching frequency, easing EMC compliance. |
| FPGA I/O and Auxiliary Rail | DDR4/DDR5 Memory Termination |
|
Use Scenario: Generates configurable 1.2V/1.8V/2.5V auxiliary rails for FPGA I/O banks and transceivers in vehicle connectivity modules. IC Role / Device Role / Timing Role: Programmable-output buck converter with I²C interface for runtime voltage adaptation during FPGA reconfiguration. Use Value: Enables single-device support for multiple I/O standards via software-controlled VOUT settings, reducing BOM count. |
Use Scenario: Provides tightly regulated 0.6V–1.1V termination voltage (VTT) or 1.2V VDDQ for DDR4/DDR5 memory subsystems in telematics gateways. IC Role / Device Role / Timing Role: Fast-transient buck regulator with power-good window comparator and remote sensing for memory bus integrity. Use Value: Ensures sub-1% voltage deviation during burst-mode memory access, preventing timing violations and data corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62870QWRXSRQ1 | Same 6A rating and RXS package, but factory-configured for 0.850V startup (I²C address 0x40) instead of 1.800V (0x30). | Targeted for lower-voltage processor cores (e.g., ARM Cortex-A72), not high-VDDQ memory rails. | Select when default 0.850V startup aligns with system power sequencing requirements. |
| TPS62870Y1QWRXSRQ1 | Identical 6A/RXS/I²C spec, but configured for 0.800V startup (I²C address 0x40) and different VSEL resistor value. | Suitable for ASIC core supplies requiring tighter initial tolerance than generic 0.85V variants. | Choose when 0.800V nominal startup voltage matches SoC VDD_MIN specification and simplifies sequencing logic. |
Compared with TPS62870QWRXSRQ1 and TPS62870Y1QWRXSRQ1, the TPS62870Y2QWRXSRQ1 provides higher default startup voltage (1.800V), enabling direct compatibility with DDR memory VDDQ or FPGA auxiliary rails without external level-shifting or sequencing delays.
Availability
TPS62870Y2QWRXSRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS domain controllers, and high-reliability FPGA/ASIC power delivery requiring stable component supply, AEC-Q100 qualification, and functional safety documentation support.
Supply support for TPS62870Y2QWRXSRQ1 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 infrastructure.
The TPS6287x-Q1 product line delivers high-current, fast-transient synchronous buck converters for automotive processor cores, memory, and domain controllers-designed specifically to meet ASIL-B system-level safety goals and stringent EMI requirements.
FAQ
What is the default startup output voltage of the TPS62870Y2QWRXSRQ1?
The TPS62870Y2QWRXSRQ1 is factory-configured with a default startup output voltage of 1.800V, selected via a 6.2kΩ resistor from the VSEL pin to GND. This setting corresponds to I²C address 0x30 and is optimized for DDR memory VDDQ or FPGA auxiliary rails requiring higher initial voltage levels.
Does the TPS62870Y2QWRXSRQ1 support stacking with other TPS6287x-Q1 devices?
Yes, the TPS62870Y2QWRXSRQ1 supports stacking with identical current-rated devices (e.g., other 6A variants) using SYNC_OUT to MODE/SYNC daisy-chaining. Stacking enables current scaling (e.g., 12A with two units) and thermal load distribution, but all stacked devices must share the same current rating and COMP/GOSNS/VOSNS connections.
What package type and thermal characteristics does the TPS62870Y2QWRXSRQ1 use?
The TPS62870Y2QWRXSRQ1 uses a 2.55mm × 3.55mm × 1mm 16-pin VQFN-FCRLF (RXS) package with wettable flanks. Its thermal performance includes RθJA = 43.2°C/W (JEDEC), RθJB = 7.7°C/W, and junction temperature range of –40°C to +150°C-requiring the exposed thermal pad to be soldered to a GND plane for optimal heat dissipation.
How does the I²C interface of the TPS62870Y2QWRXSRQ1 enhance system design?
The I²C interface of the TPS62870Y2QWRXSRQ1 enables real-time voltage adjustment, temperature monitoring, and fault reporting without hardware modifications. It supports up to 1 MHz communication, allowing dynamic power management for processors and FPGAs, and provides access to thermal warning flags and power-good status for safe system sequencing.
What are the key differences between the TPS62870Y2QWRXSRQ1 and non-I²C variants like TPS62870N0QWRXSRQ1?
The TPS62870Y2QWRXSRQ1 includes full I²C functionality (address 0x30, 1.800V startup), while non-I²C variants like TPS62870N0QWRXSRQ1 lack register access and require SDA/SCL pins tied to GND. Non-I²C versions use fixed factory settings for parameters such as soft-start time and spread-spectrum enable, limiting runtime configurability compared to the TPS62870Y2QWRXSRQ1.
TPS62870Y2QWRXSRQ1 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)
TPS62870Y2QWRXSRQ1 FAQ
1.How can I place an order for TPS62870Y2QWRXSRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62870Y2QWRXSRQ1 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 TPS62870Y2QWRXSRQ1 reliable?
The price and inventory of TPS62870Y2QWRXSRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62870Y2QWRXSRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62870Y2QWRXSRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62870Y2QWRXSRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62870Y2QWRXSRQ1?
TPS62870Y2QWRXSRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62870Y2QWRXSRQ1 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 TPS62870Y2QWRXSRQ1?
For technical support, including TPS62870Y2QWRXSRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62870Y2QWRXSRQ1 requirements.
6.How does Aetrix verify that TPS62870Y2QWRXSRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62870Y2QWRXSRQ1 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 TPS62870Y2QWRXSRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62870Y2QWRXSRQ1?
All TPS62870Y2QWRXSRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62870Y2QWRXSRQ1, 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 TPS62870Y2QWRXSRQ1 part is unused and in its original packaging.
Return procedure for TPS62870Y2QWRXSRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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