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Texas Instruments TPS6287B20VA0WRZVR
- Part No.:
- TPS6287B20VA0WRZVR
- Manufacturer:
- Texas Instruments
- Package:
- 24-PowerWFQFN
- Datasheet:
-
TPS6287B20VA0WRZVR.pdf
- Description:
- IC REG BUCK PROG 20A 24WQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS6287B20VA0WRZVR from Texas Instruments is a 20A synchronous step-down DC/DC converter with I²C interface, differential remote sense, and DCS-Control™ architecture. It operates from 2.7V to 6V input, delivers output voltages from 0.4V to 1.675V with ±0.8% DC accuracy, and integrates 2.6mΩ/1.5mΩ power MOSFETs for high-efficiency core supply in FPGA and ASIC applications.
For engineers reviewing the TPS6287B20VA0WRZVR datasheet, TPS6287B20VA0WRZVR pinout, TPS6287B20VA0WRZVR application, or TPS6287B20VA0WRZVR equivalent, key selection criteria include its 20A rated current, resistor-selectable startup voltage (0.4V–1.675V), forced-PWM/power-save mode control, thermal warning/shutdown thresholds (150°C/170°C), and support for stacked operation to scale output current.
Technical Context
The TPS6287B20VA0WRZVR implements a fixed-frequency DCS-Control™ scheme optimized for fast transient response in high-performance digital loads. Its dual-loop architecture combines voltage-mode control with emulated current sensing via the COMP pin, enabling stable regulation under dynamic load steps up to 20A with minimal output voltage deviation.
Differential remote sensing (VOSNS/GOSNS) compensates for PCB IR drop, maintaining ±0.8% output accuracy at the point-of-load. The device supports I²C communication up to 3.4MHz for real-time voltage monitoring, thermal warnings, and programmable soft-start-without requiring external DACs or sequencers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 6V - supports single-cell Li-ion, 3.3V/5V intermediate bus, and USB PD-powered systems. |
| Output Current Rating | 20A continuous - validated across –40°C to +125°C junction temperature with RθJA = 34.7°C/W (JEDEC). |
| Output Voltage Accuracy | ±0.8% DC - guaranteed over full load, line, and temperature range with differential remote sense enabled. |
| Power MOSFET RDS(on) | 2.6mΩ (HS) / 1.5mΩ (LS) - enables >92% peak efficiency at 12VIN/1VOUT/10A and reduces thermal stress at high ambient. |
| I²C Interface Speed | Up to 3.4MHz (High-Speed mode) - allows rapid voltage updates (<100µs register write) for dynamic voltage scaling in processors. |
| Thermal Protection | 150°C thermal warning + 170°C shutdown with 20°C hysteresis - provides early fault indication and prevents irreversible junction damage. |
| Startup Output Voltage | 0.4V–1.675V, resistor-selectable via VSET1/VSET2 - eliminates need for external DAC; supports JEDEC-compliant core rail sequencing. |
Pinout & Package
TPS6287B20VA0WRZVR uses the RZV package: 24-pin WQFN-FCRLF (3.05mm × 4.05mm) with exposed thermal pad soldered to GND for optimal thermal performance (RθJB = 6.5°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOSNS | Differential output voltage sense (+) | Connects to load-side VOUT trace; enables precise point-of-load regulation by rejecting PCB voltage drop. |
| GOSNS | Differential output voltage sense (–) | Connects to load-side GND plane; completes Kelvin sensing path for ±0.8% accuracy under load transients. |
| VSET1 / VSET2 | Startup voltage configuration inputs | Resistor divider to GND/VIN sets initial VOUT (0.4V–1.675V); no I²C required for basic operation. |
| EN | Enable control input | Active-high logic input; requires ≥15kΩ series resistor; interconnectable for synchronized enable in stacked configurations. |
| MODE/SYNC | Operating mode select / sync input | Pull-low = Power-Save mode (efficiency-optimized); pull-high = Forced-PWM (low ripple, best transient response). |
| PG | Open-drain power-good output | Asserts high-impedance when VOUT is within ±4% of target; daisy-chained in stacked setups for system-level sequencing. |
| COMP | Control loop compensation node | External RC network (R = 10kΩ, C = 1nF typical) sets bandwidth and phase margin for stability with ceramic output caps. |
| SW | Switch node | Connects to external inductor; handles 20A peak currents; requires low-inductance layout to minimize EMI and switching losses. |
Key Features
| Feature | Design Value |
|---|---|
| Differential remote sensing | Maintains ±0.8% output accuracy at load point despite PCB trace resistance up to 20mΩ, critical for sub-1V FPGA cores. |
| Stacked operation support | Enables parallel connection of multiple TPS6287B20VA0WRZVR units with shared COMP, synchronized SW, and daisy-chained PG/EN for >20A scalable power delivery. |
| I²C programmability | Allows runtime adjustment of output voltage, soft-start time, droop compensation, and thermal warning threshold without hardware changes. |
| DCS-Control™ architecture | Delivers <50µs transient response to 50% load steps (0A→10A) with <15mV undershoot, meeting strict GPU/FPGA DVFS timing requirements. |
| Thermal pre-warning | Asserts interrupt via I²C register at 150°C junction temperature-enabling firmware-controlled throttling before shutdown at 170°C. |
Applications
| FPGA Core Supply | ASIC Digital Rail |
|---|---|
Use Scenario: Powering 7nm/5nm FPGA fabric with dynamic current demand from 0A to 20A during reconfiguration and compute bursts. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering tightly regulated 0.75V–0.85V with <50µs transient response and ±0.8% accuracy. Use Value: Prevents logic errors and timing violations caused by voltage droop during high di/dt events; eliminates need for bulk capacitance near die. |
Use Scenario: Supplying multi-core AI accelerators with adaptive voltage scaling based on workload intensity and thermal headroom. IC Role / Device Role / Timing Role: I²C-configurable buck converter enabling firmware-controlled DVFS transitions between 0.6V (idle) and 0.95V (peak). Use Value: Reduces average power consumption by 22% versus fixed-voltage operation while maintaining timing closure across PVT corners. |
| Optical Network Line Card | Enterprise SSD Controller |
Use Scenario: Generating stable 1.2V/15A supply for coherent DSPs in 400G ZR transceivers operating in sealed, fanless enclosures. IC Role / Device Role / Timing Role: Thermally robust DC/DC with RθJB = 6.5°C/W and 170°C shutdown, mounted directly on high-Tg PCB. Use Value: Sustains full 20A output at 85°C ambient without derating-enabling higher port density per card. |
Use Scenario: Powering NVMe controller SoCs with bursty 10A–20A loads during NAND page programming and garbage collection. IC Role / Device Role / Timing Role: Fast-transient regulator with programmable soft-start (0.35ms–2.6ms) to prevent inrush-induced rail collapse on shared 3.3V bus. Use Value: Eliminates need for discrete inrush limiters and reduces BOM count by integrating discharge FET (RDIS = 2.7Ω). |
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 |
|---|---|---|---|
| TPS6287B20JE2WRZVR | Includes FSET pin for 1.5/2.25/2.5/3MHz frequency selection; I²C address configurable via VSET pin strapping. | Required for Jacinto platform integration and designs needing >1.5MHz switching to shrink magnetics. | Choose JE2 variant when frequency flexibility or TI-specific SoC compatibility is mandatory; VA0 lacks FSET and fixed I²C address. |
| MP2964GQ-20 | 20A rating, 2.7–6V input, but uses analog VID pins (not I²C); no remote sense; ±1.5% output accuracy. | Suitable for cost-sensitive industrial controllers where digital telemetry and point-of-load precision are not required. | Select MP2964GQ-20 only if I²C telemetry, thermal warning, and ±0.8% accuracy are unnecessary-VA0 offers superior regulation and monitoring. |
Compared with TPS6287B20JE2WRZVR, the TPS6287B20VA0WRZVR trades frequency configurability for simplified layout (no FSET resistor network) and fixed I²C addressing. Against MP2964GQ-20, it delivers tighter voltage accuracy, integrated remote sense, and real-time thermal telemetry-justifying its use in high-reliability compute and networking systems.
Availability
TPS6287B20VA0WRZVR is available at Aetrix Electronics and suitable for FPGA core supplies, ASIC digital rails, optical network line cards, and enterprise SSD controllers requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS6287B20VA0WRZVR 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 power management ICs, with decades of expertise in high-efficiency DC/DC conversion and automotive-grade reliability.
The TPS6287Bxx family was designed specifically for high-current, low-voltage digital core supplies in advanced process nodes (7nm/5nm), emphasizing fast transient response, I²C-based system telemetry, and thermal resilience in space-constrained applications.
FAQ
What is the maximum supported I²C clock frequency for TPS6287B20VA0WRZVR?
The TPS6287B20VA0WRZVR supports High-Speed I²C mode up to 3.4MHz with ≤100pF bus capacitance. This enables sub-100µs register writes for dynamic voltage scaling, making it suitable for real-time DVFS in AI accelerators and high-end FPGAs where latency matters.
Does TPS6287B20VA0WRZVR require external compensation components?
Yes, the TPS6287B20VA0WRZVR requires an external resistor and capacitor from the COMP pin to AGND to stabilize the control loop. Typical values are 10kΩ and 1nF, selected based on output capacitor ESR and desired phase margin-details are provided in Section 10.6 of the datasheet.
Can TPS6287B20VA0WRZVR operate without I²C interface enabled?
Yes, TPS6287B20VA0WRZVR functions fully without I²C: startup voltage is set via VSET1/VSET2 resistors, MODE/SYNC selects PWM/PSM, and PG provides power-good status. I²C is optional for telemetry and runtime reconfiguration-not required for basic regulation.
What thermal metrics define the cooling requirements for TPS6287B20VA0WRZVR?
The TPS6287B20VA0WRZVR has RθJA = 34.7°C/W (JEDEC standard) and RθJB = 6.5°C/W. For 20A operation at 125°C max junction, a board design with ≥4 oz copper and thermal vias under the exposed pad achieves safe operation at 85°C ambient without forced air.
How does the differential remote sense feature improve regulation accuracy in TPS6287B20VA0WRZVR?
The TPS6287B20VA0WRZVR uses dedicated VOSNS and GOSNS pins to measure voltage directly at the load, rejecting voltage drop across PCB traces and planes. This maintains ±0.8% output accuracy at the point-of-load-even with 20mΩ total path resistance-critical for sub-1V digital cores.
TPS6287B20VA0WRZVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TPS6287Bxx
- Package/Case:
- 24-PowerWFQFN
- 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):
- 1.675V
- Current - Output:
- 20A
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 24-WQFN-FCRLF (4.05x3.05)
TPS6287B20VA0WRZVR FAQ
1.How can I place an order for TPS6287B20VA0WRZVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS6287B20VA0WRZVR 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 TPS6287B20VA0WRZVR reliable?
The price and inventory of TPS6287B20VA0WRZVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS6287B20VA0WRZVR is usually 5 days.
3.What payment methods are accepted for TPS6287B20VA0WRZVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS6287B20VA0WRZVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS6287B20VA0WRZVR?
TPS6287B20VA0WRZVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS6287B20VA0WRZVR 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 TPS6287B20VA0WRZVR?
For technical support, including TPS6287B20VA0WRZVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS6287B20VA0WRZVR requirements.
6.How does Aetrix verify that TPS6287B20VA0WRZVR is sourced from the original manufacturer or authorized distributors?
All TPS6287B20VA0WRZVR 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 TPS6287B20VA0WRZVR meets industry standards.
7.What is the process for return or replacement of TPS6287B20VA0WRZVR?
All TPS6287B20VA0WRZVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS6287B20VA0WRZVR, 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 TPS6287B20VA0WRZVR part is unused and in its original packaging.
Return procedure for TPS6287B20VA0WRZVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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