TPS6287B20VA0WRZVR - 20A Sync Buck Converter | Texas Instruments
MPN: TPS6287B20VA0WRZVR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.05 | $7.05 |
| 10 | $6.34 | $63.40 |
| 100 | $5.64 | $564.00 |
| 500 | $5.07 | $2,535.00 |
| 1,000 | $4.56 | $4,560.00 |
TPS6287B20VA0WRZVR Overview
A buck (step-down) converter is a switching voltage regulator that efficiently reduces a higher DC input voltage to a lower, tightly regulated output voltage using high-frequency switching of integrated power MOSFETs together with an inductor and capacitors. Within the power-management IC hierarchy, it belongs to the family of switching regulators, which achieve far higher efficiency than linear regulators (LDOs), making them the default choice for high-current point-of-load supplies in modern digital systems.
Key features include a pin-to-pin compatible current family spanning 10A (TPS6287B10), 15A (B15), 20A (B20), 25A (B25) and 30A (B30), three selectable output voltage ranges with output resolution down to 1.25mV steps, low-resistance integrated power switches for high efficiency at high ambient temperature, and stacking support in parallel mode for even higher output currents.
The TPS6287B20 architecture emphasizes fast transient response: it is specified as a fast-transient synchronous converter, allowing tight voltage regulation on dynamically loading rails such as processor cores and FPGAs. The I2C interface enables output voltage programming, telemetry, and status monitoring, while the differential remote sense input compensates for PCB voltage drop at the point of load. Frequency synchronization is also supported, simplifying multi-rail EMI management.
Typical applications include powering high-current SoC and FPGA core rails, network processors and switch ASICs, data-center storage and server point-of-load supplies, and stacking multiple devices for 40A-plus rails in AI accelerators and high-performance computing.
Design consideration: because this is a high-current buck regulator, inductor selection, switch-node layout, and thermal copper area dominate performance - follow the Texas Instruments datasheet layout guidelines closely to minimize switching losses and board-level temperature rise.
This page synthesizes distributor pricing, pin-to-pin family alternatives, drop-in options, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for TPS6287B20VA0WRZVR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPS6287B25VA0WRZVR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS6287B30VA0WRZVR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS6287B15VA0WRZVR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS6287B10VA0WRZVR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS6287B20VA0WRZVT
✅ Drop-In📋 Reference alternative (not in catalog)
TPS6287B20VA0WRZVR Maximum Ratings & Electrical Characteristics
| Topology | Synchronous step-down (buck) converter |
| Input Voltage Range | 2.7 V to 6 V |
| Output Voltage Range | 0.4 V to 1.675 V (three selectable ranges) |
| Output Voltage Resolution | 1.25 mV steps (lowest range), 2.5 mV steps (mid range) |
| Maximum Output Current | 20 A |
| Number of Outputs | 1 |
| Control Interface | I2C |
| Remote Sense | Differential remote sense |
| Frequency Synchronization | Supported |
| Stacking / Parallel Operation | Supported (stacked mode for higher current) |
| Package | 24-PowerWFQFN (RZV) |
| Marking | 7B20VA0 |
| Mounting Type | Surface Mount |
| Lifecycle Status | ACTIVE |
| Family Members (pin-to-pin) | TPS6287B10 / B15 / B20 / B25 / B30 (10A-30A) |
| Distributor Reference Price (qty 1) | $7.0471 (LCSC, as of 2026-10-19) |
TPS6287B20VA0WRZVR 24-powerwfqfn (rzv) Pin Configuration Guide
Pin configuration for TPS6287B20VA0WRZVR (24-powerwfqfn (rzv) package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for TPS6287B20VA0WRZVR.
Refer to the datasheet for full pin configuration.
Typical Applications
TPS6287B20VA0WRZVR is suitable for 6 applications: FPGA Core Voltage Supply, SoC / ASIC Core Power, Data Center and Server Point-of-Load, Stacked High-Current Rails (40A+), Networking and Telecom Equipment, Test and Measurement Instrumentation.
FPGA Core Voltage Supply
Modern FPGA core rails demand sub-1V supplies at 10-30A with strict transient requirements: core current can step from idle to full load in nanoseconds during logic switching, and droop must stay within a few percent to avoid timing violations. The TPS6287B20VA0WRZVR addresses this with its fast-transient synchronous control, 20A output capability, and differential remote sense that compensates for PCB IR drop right at the die. Output voltage is programmed over I2C with 1.25mV resolution, enabling adaptive voltage scaling during runtime. Placed close to the FPGA power pins with a compact LC filter and solid ground plane, the converter holds regulation through worst-case load transients while delivering high efficiency from the low-resistance integrated MOSFETs, reducing heatsinking needs on dense FPGA boards.
Recommended
SoC / ASIC Core Power
Application processors and network SoCs combine low core voltages (0.6-0.9V) with high, fast-changing current draw, a combination where linear regulators cannot compete on efficiency and slower switching converters fail on transient response. The TPS6287B20VA0WRZVR converts a 5V or 3.3V intermediate rail directly to the core voltage with 2.7V-6V input flexibility and up to 20A continuous current. The differential remote sense pins connect at the SoC power ball, eliminating load-line error caused by power-plane resistance, while I2C telemetry lets the host monitor rail behavior. Frequency synchronization allows multiple converters on the board to lock to a common switching frequency, preventing beat-frequency EMI tones in mixed-signal communication equipment such as switches and routers.
Recommended
Data Center and Server Point-of-Load
Server motherboards, storage controllers, and accelerators pack dozens of point-of-load converters around each processor; board area, efficiency, and thermal density are the governing constraints. The TPS6287B20VA0WRZVR integrates low-resistance power MOSFETs in a compact 24-pin WQFN (RZV) package, minimizing solution footprint while sustaining 20A at high ambient temperatures - a combination TI highlights in the datasheet as enabling up to 30A family performance on the same footprint. High efficiency reduces waste heat inside 1U chassis, and the I2C bus integrates with server power-management firmware for sequencing, margining, and fault reporting. Its pin-to-pin family (10A-30A) allows one PCB layout to serve multiple SKU power levels, cutting qualification cost across server product lines.
Recommended
Stacked High-Current Rails (40A+)
When a single rail must exceed 30A - such as AI accelerator compute cores or high-power DSP clusters - stacking multiple TPS6287Bxx devices is the documented approach. According to the TI datasheet, the family can operate in stacked mode, paralleling two or more converters with coordinated control so current shares between devices. Starting from the 20A TPS6287B20VA0WRZVR, a two-device stack provides a 40A-class rail on a shared control I2C bus, while retaining the fast-transient behavior required by AI workloads with bursty current profiles. The remote sense differential input remains connected at the single point of load for the stacked group, ensuring the combined rail voltage is accurately regulated at the consuming silicon rather than at the converter outputs.
Recommended
Networking and Telecom Equipment
Switches, routers, and optical transport systems run 24/7 with high reliability requirements and multiple tightly regulated low-voltage rails feeding ASICs and PHYs. The TPS6287B20VA0WRZVR converts the 5V or 3.3V intermediate bus into core and I/O rails with 20A capability and fast transient response for bursty packet-processing loads. Frequency synchronization spreads and aligns switching across the card, which simplifies EMI filter design needed to pass telecom emissions standards, while the I2C interface supports the system power supervisor for sequencing, margining tests, and in-field diagnostics. The differential remote sense keeps voltage accurate across long, lossy board traces typical of line-card form factors, and pin-to-pin family scalability lets one design platform cover different port-count SKUs.
Recommended
Test and Measurement Instrumentation
Oscilloscopes, spectrum analyzers, and automated test equipment embed high-current low-voltage rails for their acquisition ASICs and FPGAs, where both regulation accuracy and low output ripple affect measurement integrity. The TPS6287B20VA0WRZVR provides 1.25mV output resolution over I2C, allowing instrument firmware to margin supplies during self-calibration routines, and its differential remote sense ensures the voltage at the analog front-end die matches the programmed value despite board losses. The fast transient loop keeps the rail flat during trigger events that suddenly activate massive parallel logic. For instruments built in multiple performance tiers, the pin-to-pin TPS6287Bxx family allows the same power section to be populated with 10A, 15A, 20A, 25A, or 30A devices per tier.
Recommended
Recommended Products Summary
Engineering reference data for TPS6287B20VA0WRZVR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS6287B25VA0WRZVR | TPS6287B30VA0WRZVR | TPS6287B15VA0WRZVR | TPS6287B10VA0WRZVR |
|---|---|---|---|---|---|
| Package | 24-PowerWFQFN (RZV) | 24-PowerWFQFN (RZV) - same | 24-PowerWFQFN (RZV) - same | 24-PowerWFQFN (RZV) - same | 24-PowerWFQFN (RZV) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Maximum Output Current | 20 A | 25 A | 30 A | 15 A | 10 A |
| Input Voltage Range | 2.7 V to 6 V | 2.7 V to 6 V | 2.7 V to 6 V | 2.7 V to 6 V | 2.7 V to 6 V |
| Output Voltage Range | 0.4 V to 1.675 V | 0.4 V to 1.675 V | 0.4 V to 1.675 V | 0.4 V to 1.675 V | 0.4 V to 1.675 V |
| Control Interface | I2C | I2C | I2C | I2C | I2C |
| Differential Remote Sense | Yes | Yes | Yes | Yes | Yes |
| Stacked / Parallel Operation | Yes | Yes | Yes | Yes | Yes |
| Typical Use Case | 20A point-of-load rails | 25A rails with extra margin | Maximum-current rails, high ambient | Cost-optimized mid-current rails | Light-load SKU population |
Key Differentiators
- Optimal cost-per-amp in the mid-range of the family (vs TPS6287B30VA0WRZVR)
- More current headroom than the B15 at the same footprint (vs TPS6287B15VA0WRZVR)
- Remote sense and I2C resolution on an integrated buck (vs Discrete 20A solutions)
Design Notes
For a 20A buck converter, the switch-node loop (VIN caps, VIN pin, SW pin, inductor, PGND) dominates EMI and efficiency. Place the input capacitor network (a combination of bulk ceramic plus high-frequency 0.1uF/1uF devices) within 1-2 mm of the VIN pins on the same layer as the IC. Use a continuous, unbroken ground plane directly beneath the RZV WQFN exposed pad, stitched with multiple vias to inner ground layers to spread the large current and limit junction temperature rise. Follow the RZV land pattern in the TI TPS6287Bxx datasheet (Rev. E).
Estimated: a 20A rail delivering 0.8V from a 5V input at 90% efficiency dissipates roughly 1.8W ((20A x 0.8V / 0.9) - 20A x 0.8V = 17.8W - 16W). With a typical WQFN theta_JA on a well-coppered board of a few tens of C/W, expect tens of degrees of junction rise - verify with the datasheet thermal table for your PCB stack-up. Use at least 2 oz outer copper with generous thermal vias under the exposed pad, and re-check efficiency curves at your actual VIN/VOUT/frequency operating point before finalizing the thermal budget.
Select the power inductor for the output voltage range and switching frequency per the datasheet application section - saturating the inductor at 20A peaks destroys transient behavior and can trip overcurrent protection. Size the output capacitor bank for the target load-transient droop; the fast-transient control loop of the TPS6287B20 reduces required capacitance versus conventional converters, but use low-ESR ceramics placed at the load for sub-microsecond steps. Connect the differential remote sense Kelvin lines directly at the load point and route them as a quiet differential pair away from the switch node.
Compliance Information
Compliance status not stated in the provided verified web data; consult the TI product page for RoHS/REACH certificates.
