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Texas Instruments TPS6287B15LA0WRZVR
- Part No.:
- TPS6287B15LA0WRZVR
- Manufacturer:
- Texas Instruments
- Package:
- 24-PowerWFQFN
- Datasheet:
-
TPS6287B15LA0WRZVR.pdf
- Description:
- IC REG BUCK PROG 15A 24WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TPS6287B15LA0WRZVR from Texas Instruments is a 15A synchronous step-down DC/DC converter with I²C interface, differential remote sense, and fast transient response. It operates from 2.7V to 6V input, delivers output voltage from 0.4V to 1.675V with ±0.8% accuracy, and integrates 2.6mΩ/1.5mΩ power MOSFETs for high-efficiency core regulation in FPGA and ASIC power delivery.
For engineers reviewing the TPS6287B15LA0WRZVR datasheet, TPS6287B15LA0WRZVR pinout, TPS6287B15LA0WRZVR application, or TPS6287B15LA0WRZVR equivalent, key selection criteria include its 15A rated current, I²C programmability (up to 3.4MHz), selectable 1.5MHz switching frequency, forced-PWM/power-save mode control, and differential remote sensing for point-of-load accuracy.
Technical Context
The TPS6287B15LA0WRZVR implements a fixed-frequency DCS-Control™ architecture optimized for sub-1µs load transient response in high-performance digital loads. Its dual-loop control supports both voltage-mode regulation via COMP pin compensation and droop-based current sharing in stacked configurations.
Differential remote sensing (VOSNS/GOSNS) enables precise regulation at the load by rejecting PCB IR drop, while the integrated I²C interface provides real-time readback of output voltage, temperature warnings (thermal pre-warning at 150°C, shutdown at 170°C), and dynamic voltage scaling without external ADCs or monitoring circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 15A continuous - supports high-current FPGA core rails with margin at 125°C junction temperature. |
| Input Voltage Range | 2.7V to 6V - compatible with single-cell Li-ion, 3.3V/5V intermediate bus, and USB PD sources. |
| Output Voltage Accuracy | ±0.8% - ensures stable logic supply within tight tolerance across line, load, and temperature. |
| Switching Frequency | 1.5MHz (default) - enables compact 100–200nH inductor selection and reduces EMI fundamental frequency. |
| I²C Interface Speed | Up to 3.4MHz (high-speed mode) - allows rapid voltage updates (<100µs) during DVFS transitions. |
| Power MOSFET RDS(on) | 2.6mΩ (HS) / 1.5mΩ (LS) - minimizes conduction loss and thermal rise under full 15A load. |
| Thermal Warning Threshold | 150°C - triggers early thermal alert before shutdown, enabling system-level thermal management. |
Pinout & Package
TPS6287B15LA0WRZVR uses a 24-pin WQFN-FCRLF (RZV) package, 3.05mm × 4.05mm, with exposed thermal pad soldered to GND for optimal thermal performance (RθJA = 28°C/W on EVM).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pins 5,6,15,16) | Power input | Four dedicated input pins reduce trace inductance and improve high-frequency decoupling for 15A operation. |
| SW (Pins 9,10,11,12) | Switch node | Four parallel switch outputs distribute current and minimize layout parasitics in high-dI/dt paths. |
| VOSNS / GOSNS | Differential output sense | Enables true point-of-load regulation by measuring voltage directly at load terminals, rejecting PCB resistance error. |
| SDA / SCL (Pins 19,20) | I²C bidirectional interface | Supports high-speed configuration, telemetry readback, and multi-device synchronization without additional GPIOs. |
| MODE/SYNC | Operating mode select | Pull-low for power-save mode (efficiency optimization); pull-high for forced-PWM (low ripple, fast transient). |
| EN | Enable control | Logic-compatible input with internal pulldown; requires ≥15kΩ series resistor for robust noise immunity. |
| PG | Open-drain power-good | Window comparator output confirms VOUT within ±4% of target; daisy-chainable in stacked configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Differential remote sensing | Compensates for up to 100mV PCB voltage drop between regulator and load, maintaining ±0.8% regulation at point-of-load. |
| I²C programmability | Enables dynamic voltage scaling, fault logging, and real-time telemetry without external monitoring ICs or firmware overhead. |
| Stacked operation support | SYNC_OUT/MODE-SYNC daisy-chaining allows up to three devices to share current and spread thermal load across PCB area. |
| Adjustable soft-start | Four ramp time options (0.35–2.6ms) prevent inrush current and enable controlled power-up sequencing with other rails. |
| Thermal pre-warning | Asserts interrupt at 150°C junction temperature-20°C before shutdown-enabling proactive thermal throttling in SoC systems. |
Applications
| FPGA Core Supply | ASIC Digital Rail |
|---|---|
Use Scenario: Powering 7nm/5nm FPGA core logic requiring tight voltage tolerance and sub-µs transient response during burst computation. IC Role / Device Role / Timing Role: Primary core voltage regulator with I²C-controlled DVFS and differential remote sensing for accurate VCCINT delivery. Use Value: Maintains ±0.8% output accuracy under 10A/µs load steps, eliminating need for external voltage margining or post-regulation LDOs. |
Use Scenario: Delivering configurable voltage to heterogeneous ASIC clusters with dynamic power states and thermal constraints. IC Role / Device Role / Timing Role: High-current buck converter with thermal warning and I²C telemetry for closed-loop system power management. Use Value: Enables real-time voltage adjustment and thermal event reporting via I²C, reducing host processor polling overhead by >90%. |
| Optical Network Line Card | Enterprise SSD Controller Rail |
Use Scenario: Regulating DSP and SerDes supplies in pluggable optical modules (QSFP-DD, OSFP) with strict space and thermal limits. IC Role / Device Role / Timing Role: Compact 3.05mm × 4.05mm step-down converter with forced-PWM mode for low-noise SerDes biasing. Use Value: 1.5MHz switching frequency and low EMI design meet CISPR-32 Class B emissions without shielding, saving board area. |
Use Scenario: Powering NVMe SSD controller and DRAM cache in enterprise storage systems requiring high reliability and thermal resilience. IC Role / Device Role / Timing Role: 15A core regulator with thermal shutdown (170°C) and output discharge for safe hot-swap and power sequencing. Use Value: Integrated output discharge (2.7–9.2Ω) ensures rapid VOUT collapse during power-down, preventing data corruption in NAND flash buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6287B15JE2WRZVR | Includes FSET pin for 1.5/2.25/2.5/3MHz frequency selection; default 1.5MHz same as TPS6287B15LA0WRZVR. | Targeted for Jacinto platform integration with specific I²C address mapping (0x44–0x47) and non-sync mode support. | Select JE2 variant only when frequency flexibility beyond 1.5MHz or Jacinto-specific startup settings are required. |
| TPS6287B20LA0WRZVR | 20A rating, identical pinout and feature set; higher current capability with same 2.6mΩ/1.5mΩ MOSFETs and thermal design. | Used where future-proofing for higher current or derated operation at elevated ambient temperatures is needed. | Choose 20A version if system peak current exceeds 15A or long-term reliability margin at 125°C is critical. |
Compared with TPS6287B15JE2WRZVR, the TPS6287B15LA0WRZVR offers simpler frequency configuration (fixed 1.5MHz) and broader I²C address compatibility; versus TPS6287B20LA0WRZVR, it provides optimal cost/performance balance for verified 15A applications without overdesign.
Availability
TPS6287B15LA0WRZVR is available at Aetrix Electronics and suitable for FPGA core supply, ASIC digital rail, and optical network line card applications requiring stable component supply, full production traceability, and long-term lifecycle support.
Supply support for TPS6287B15LA0WRZVR 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.
The TPS6287Bxx family was designed specifically for high-current, fast-transient digital core power in advanced FPGAs, ASICs, and AI accelerators-emphasizing I²C configurability, thermal intelligence, and point-of-load accuracy.
FAQ
What is the maximum output current rating of the TPS6287B15LA0WRZVR?
The TPS6287B15LA0WRZVR is rated for 15A continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). Its internal 2.6mΩ high-side and 1.5mΩ low-side MOSFETs enable this rating with minimal conduction loss, and thermal shutdown activates at 170°C to protect against overload or poor heatsinking.
Does the TPS6287B15LA0WRZVR support remote sensing, and how is it implemented?
Yes, the TPS6287B15LA0WRZVR supports true differential remote sensing using dedicated VOSNS and GOSNS pins. This configuration measures output voltage directly at the load terminals, rejecting PCB trace resistance and ensuring ±0.8% regulation accuracy at the point-of-load-even with up to 100mV IR drop in the power path.
Can the TPS6287B15LA0WRZVR be used in stacked configurations, and what is required?
Yes, the TPS6287B15LA0WRZVR supports stacked operation for higher current or thermal spreading. It requires interconnecting EN, PG, and MODE/SYNC pins across devices, connecting SYNC_OUT of one device to MODE/SYNC of the next, and tying all COMP pins together with a single compensation network. Up to three devices can be synchronized in daisy-chain mode.
What I²C speeds does the TPS6287B15LA0WRZVR support, and are pull-up resistors required?
The TPS6287B15LA0WRZVR supports I²C standard mode (100kHz), fast mode (400kHz), fast mode plus (1MHz), and high-speed mode (up to 3.4MHz). External pull-up resistors are mandatory on both SDA and SCL pins-TI recommends 2.2kΩ to 3.3V or 5V logic levels-and floating pins are not permitted per datasheet requirements.
How is the startup output voltage configured on the TPS6287B15LA0WRZVR?
The TPS6287B15LA0WRZVR uses resistor-divider networks on VSET1 and VSET2 pins to select startup output voltage in two ranges: 0.4V–0.775V (25mV steps) or 0.8V–1.55V (50mV steps). A 6.2kΩ resistor to GND on VSET1 and open VSET2 yields 0.4V; 47kΩ to VIN on VSET2 with VSET1 grounded selects 0.8V, per Table 8-5 in the datasheet.
TPS6287B15LA0WRZVR 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):
- 0.775V
- Current - Output:
- 15A
- 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)
TPS6287B15LA0WRZVR FAQ
1.How can I place an order for TPS6287B15LA0WRZVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS6287B15LA0WRZVR 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 TPS6287B15LA0WRZVR reliable?
The price and inventory of TPS6287B15LA0WRZVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS6287B15LA0WRZVR is usually 5 days.
3.What payment methods are accepted for TPS6287B15LA0WRZVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS6287B15LA0WRZVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS6287B15LA0WRZVR?
TPS6287B15LA0WRZVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS6287B15LA0WRZVR 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 TPS6287B15LA0WRZVR?
For technical support, including TPS6287B15LA0WRZVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS6287B15LA0WRZVR requirements.
6.How does Aetrix verify that TPS6287B15LA0WRZVR is sourced from the original manufacturer or authorized distributors?
All TPS6287B15LA0WRZVR 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 TPS6287B15LA0WRZVR meets industry standards.
7.What is the process for return or replacement of TPS6287B15LA0WRZVR?
All TPS6287B15LA0WRZVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS6287B15LA0WRZVR, 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 TPS6287B15LA0WRZVR part is unused and in its original packaging.
Return procedure for TPS6287B15LA0WRZVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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