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Texas Instruments TPS53915RVER
- Part No.:
- TPS53915RVER
- Manufacturer:
- Texas Instruments
- Package:
- 28-VFQFN Exposed Pad
- Datasheet:
-
TPS53915RVER.pdf
- Description:
- IC REG BUCK ADJ 12A 28VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,862
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Product details
Overview
TPS53915RVER from Texas Instruments is a 12-A synchronous step-down DC-DC converter with PMBus™ interface, D-CAP3™ adaptive on-time control, and integrated 13.8-mΩ high-side / 5.9-mΩ low-side MOSFETs. It delivers 0.6–5.5 V output from 1.5–18 V input (4.5–25 V VDD bias), supports auto-skip Eco-Mode™ and forced continuous conduction mode (FCCM), and targets high-efficiency point-of-load regulation for FPGAs and DSPs.
For engineers reviewing the TPS53915RVER datasheet, TPS53915RVER pinout, TPS53915RVER application, or TPS53915RVER equivalent, key selection criteria include its 28-pin QFN package, 0.5% reference voltage accuracy, eight programmable switching frequencies (200–1000 kHz), PMBus-configurable voltage margining/soft-start/power-on delay, and thermal shutdown at 140°C.
Technical Context
The TPS53915RVER implements D-CAP3™ control using emulated current sensing-eliminating external compensation components while enabling ultra-fast load-step response. Its adaptive on-time architecture dynamically adjusts switching frequency across input/output voltage ranges to maintain regulation stability.
Integrated PMBus™ support enables real-time telemetry (VOUT, IOUT, temperature), fault reporting (OCP, OVP, UVP, thermal), and configuration of critical power sequencing parameters-including soft-start time (1–8 ms), power-on delay (356 µs to 32.86 ms), and PGOOD assertion thresholds (±8% to ±16%).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 12 A continuous-supports high-current POL rails for modern FPGAs and ASICs without external current sharing. |
| Input Voltage Range | 1.5–18 V VIN + 4.5–25 V VDD bias-enables flexible system-level power architecture with independent controller bias supply. |
| Output Voltage Range | 0.6–5.5 V with 0.5% reference tolerance-ensures tight regulation for sub-1V core supplies and I/O rails. |
| Switching Frequency | 200–1000 kHz (8 selectable settings)-balances efficiency, size, and ripple for diverse PCB layout constraints. |
| Control Mode | D-CAP3™ adaptive on-time-provides zero-phase-compensation design, fast transient response (<10 µs load step), and stable operation with all-ceramic output capacitors. |
| Thermal Protection | 140°C shutdown with 40°C hysteresis-prevents thermal runaway in compact, high-power-density applications. |
| PMBus Compliance | Full PMBus v1.2 support-enables digital configuration, telemetry, and fault logging via SCL/SDA interface without external microcontroller. |
Pinout & Package
TPS53915RVER uses a 3.5 mm × 4.5 mm, 28-pin QFN package with exposed thermal pad (RVE suffix). Pin assignment follows TI's standard top-view layout with dedicated PGND, VIN, SW, and PMBus signal pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADDR (Pin 1) | PMBus address configuration | Resistor-divider input sets unique I²C address-enables multi-rail monitoring on shared bus without address conflict. |
| EN (Pin 3) | Enable control | Logic-high active input with 1.3–1.5 V threshold-supports precise power sequencing with external GPIO or supervisor IC. |
| FB (Pin 23) | Feedback input | High-impedance (50–100 nA) node for resistor divider-minimizes divider current error and improves light-load accuracy. |
| PGOOD (Pin 2) | Open-drain status output | Asserts after soft-start when VOUT is within ±8%; deasserts within 2 µs if outside ±16%-enables reliable system power-good handshaking. |
| SCL/SDA (Pins 28/27) | PMBus serial interface | Standard I²C-compatible signals with 0.8 V low / 2.1 V high thresholds-interoperates with industry-standard PMBus masters. |
| SW (Pins 6,7,15,17,20) | Power switch node | Five paralleled SW pins reduce trace inductance and thermal resistance-critical for sustaining 12-A peak currents and minimizing EMI. |
| PGND (Pins 12,13,14,16) | Power ground return | Four dedicated low-side MOSFET return paths-low-inductance connection to thermal pad ensures stable current sensing and OCP accuracy. |
| VIN (Pins 16,17,19) | Main power input | Three VIN pins distribute high di/dt input current-reduces voltage drop and improves transient response during load steps. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MOSFETs | 13.8-mΩ high-side + 5.9-mΩ low-side RDS(on) enables >90% efficiency at 12 A, eliminating discrete gate drivers and layout complexity. |
| Auto-Skipping Eco-Mode™ | Disables switching at light loads to reduce quiescent current-extends battery life in always-on systems without sacrificing startup speed. |
| FCCM Operation | Forced continuous conduction maintains fixed frequency and tight output ripple-essential for noise-sensitive analog and RF subsystems. |
| All-Ceramic Support | No external compensation required-simplifies BOM, reduces board area, and improves reliability versus electrolytic-based designs. |
| VREG LDO Output | 5-V, 200-mA regulated supply powers internal circuitry and gate drivers-removes need for external bias rail in single-supply systems. |
Applications
| Server Point-of-Load Regulation | Broadband Networking Power |
|---|---|
Use Scenario: Regulating 0.85 V @ 10 A for Xilinx Kria KV260 SoC in edge AI inference servers. IC Role / Device Role / Timing Role: Primary POL converter delivering tightly regulated core voltage with <10 µs transient response to dynamic workload changes. Use Value: D-CAP3™ control and 0.5% reference ensure <±10 mV output deviation under 6-A step load, meeting FPGA core voltage spec. | Use Scenario: Generating 1.2 V @ 8 A for Marvell Prestera CX3000 Ethernet switch ASIC in 5G base station line cards. IC Role / Device Role / Timing Role: High-current buck regulator with PMBus telemetry for remote health monitoring and firmware-updatable voltage margins. Use Value: Programmable soft-start (1–8 ms) and power-on delay (356 µs–32.86 ms) enable precise sequencing across 12+ rails in multi-ASIC systems. |
| FPGA I/O Supply Management | Optical Transceiver Biasing |
Use Scenario: Providing 3.3 V @ 5 A to Xilinx Versal I/O banks in reconfigurable compute accelerators. IC Role / Device Role / Timing Role: Secondary POL converter supporting configurable I/O standards with PMBus-adjustable voltage margining (±5%). Use Value: Eight selectable switching frequencies allow optimization for EMI compliance-500 kHz setting meets CISPR-32 Class B limits in dense PCB layouts. | Use Scenario: Delivering 5 V @ 2 A to CFP2 optical module laser drivers in coherent DWDM transport systems. IC Role / Device Role / Timing Role: Stable, low-noise bias supply with FCCM mode to suppress switching artifacts in analog laser bias paths. Use Value: Forced CCM operation reduces output voltage ripple to <5 mVpp-prevents modulation noise from corrupting 100G+ optical signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS53815RVER | Same 28-pin QFN package, but rated for 15 A output and higher RDS(on) (15.5/7.0 mΩ); lacks PMBus interface. | Targeted at cost-sensitive, non-telemetry applications requiring higher current headroom without digital control. | Select when PMBus is unnecessary and 15-A capability justifies slightly lower efficiency at 12 A. |
| ISL91211AIRZ-T7A | 12-A rating, 2.5 V–5.5 V input, integrated PMBus, but uses different control architecture (adaptive constant-on-time) and 32-pin 4×4 mm QFN. | Designed for mobile/embedded applications with tighter input voltage range and smaller footprint; no VDD bias flexibility. | Select for space-constrained portable designs where 1.5–18 V wide VIN is not required and 32-pin layout is acceptable. |
Compared with TPS53915RVER, TPS53815RVER offers higher current headroom without PMBus, while ISL91211AIRZ-T7A provides comparable telemetry in a smaller package but narrower input range-making TPS53915RVER optimal for industrial/computing POL with wide VIN and full PMBus configurability.
Availability
TPS53915RVER is available at Aetrix Electronics and suitable for server point-of-load regulation, broadband networking power, and FPGA I/O supply management requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS53915RVER 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 technologies, with decades of expertise in high-performance DC-DC conversion.
The TPS53915RVER belongs to TI's SWIFT™ synchronous buck converter family, engineered for high-efficiency, digitally controllable point-of-load power delivery in computing, networking, and communications infrastructure.
FAQ
What is the maximum supported switching frequency for the TPS53915RVER?
The TPS53915RVER supports eight programmable switching frequencies ranging from 200 kHz to 1000 kHz. The maximum frequency is 1000 kHz (1 MHz), achievable via PMBus command FS<2:0>=111. At this setting, the device maintains stable operation with 1 µH inductors and all-ceramic output capacitors, though efficiency peaks near 500 kHz under typical 12-V input conditions.
Does the TPS53915RVER require external compensation components?
No, the TPS53915RVER does not require external compensation components. Its D-CAP3™ control architecture uses emulated current information and adaptive on-time modulation to achieve inherent stability across the full operating range-enabling robust performance with only the output inductor and ceramic capacitors.
How is overcurrent protection configured on the TPS53915RVER?
Overcurrent protection on the TPS53915RVER is configured via the TRIP pin (Pin 25), which sources a 10-µA current at 25°C. Connecting an external resistor (20–70 kΩ) between TRIP and GND sets the valley current limit threshold-e.g., 52.3 kΩ yields 12.0 A nominal OCL. This analog programming method allows precise, temperature-compensated current limiting without PMBus interaction.
Can the TPS53915RVER operate with a pre-biased output?
Yes, the TPS53915RVER supports pre-biased output startup. When enabled, the device monitors the FB pin during soft-start and prevents reverse current flow into the output capacitor-even if VOUT is initially biased to 0.6 V or higher. This feature protects downstream circuitry during hot-swap or multi-rail sequencing scenarios.
What is the purpose of the VREG pin on the TPS53915RVER?
The VREG pin (Pin 20) on the TPS53915RVER outputs a regulated 5-V supply capable of delivering up to 200 mA. It powers internal analog circuitry, gate drivers, and the PMBus interface-eliminating the need for an external bias rail in most designs. VREG is derived from the VDD input and remains active as long as VDD exceeds its UVLO threshold (3.95–4.15 V).
TPS53915RVER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SWIFT™, D-CAP3™, Eco-Mode™
- Package/Case:
- 28-VFQFN 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):
- 1.5V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 12A
- Frequency - Switching:
- 200kHz ~ 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-VQFN-CLIP (4.5x3.5)
TPS53915RVER FAQ
1.How can I place an order for TPS53915RVER through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS53915RVER 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 TPS53915RVER reliable?
The price and inventory of TPS53915RVER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS53915RVER is usually 5 days.
3.What payment methods are accepted for TPS53915RVER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS53915RVER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS53915RVER?
TPS53915RVER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS53915RVER 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 TPS53915RVER?
For technical support, including TPS53915RVER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS53915RVER requirements.
6.How does Aetrix verify that TPS53915RVER is sourced from the original manufacturer or authorized distributors?
All TPS53915RVER 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 TPS53915RVER meets industry standards.
7.What is the process for return or replacement of TPS53915RVER?
All TPS53915RVER units undergo pre-shipment inspection (PSI). If there is an issue with TPS53915RVER, 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 TPS53915RVER part is unused and in its original packaging.
Return procedure for TPS53915RVER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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