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Texas Instruments TPS54617RUVR/2801
- Part No.:
- TPS54617RUVR/2801
- Manufacturer:
- Texas Instruments
- Package:
- 34-VFQFN Exposed Pad
- Datasheet:
-
TPS54617RUVR/2801.pdf
- Description:
- IC REG BUCK ADJ 6A 34VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,332
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Product details
Overview
TPS54617RUVR/2801 from Texas Instruments is a 3-V to 6-V input, 6-A synchronous buck DC/DC converter with integrated high- and low-side MOSFETs (30 mΩ typical rDS(on)), adjustable output down to 0.9 V (±1% reference accuracy), and externally compensated control loop. It delivers up to 6 A continuous output at 1.8 V in point-of-load applications for FPGAs and microprocessors.
For engineers reviewing the TPS54617RUVR/2801 datasheet, TPS54617RUVR/2801 pinout, TPS54617RUVR/2801 application, or TPS54617RUVR/2801 equivalent, key selection criteria include its 34-pin QFN PowerPAD™ package, 280 kHz–1.6 MHz adjustable switching frequency, thermal shutdown (150°C trip), peak current limit (7.2–12 A), and dual-function SS/ENA and SYNC pins for enable control and frequency synchronization.
Technical Context
The TPS54617RUVR/2801 implements a voltage-mode PWM controller with an internal error amplifier (90–110 dB open-loop gain, 3–5 MHz unity-gain bandwidth) and adaptive dead-time logic. Its oscillator supports fixed 350/550 kHz or externally set 280 kHz–1.6 MHz operation via RT resistor or SYNC signal.
It integrates undervoltage lockout (UVLO start: 2.95 V, hysteresis: 0.16 V), internal slow-start (3.35 ms typical), power-good monitoring (90% Vref threshold), and thermal shutdown with 10°C hysteresis - all optimized for stable 6-A load transient response in compact, thermally constrained layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 6 V - supports direct regulation from common intermediate rails (3.3 V, 5 V) without pre-regulation. |
| Continuous Output Current | 6 A - sustained delivery enabled by 34-pin QFN PowerPAD™ thermal design and 30 mΩ MOSFETs. |
| Output Voltage Accuracy | ±1% - achieved via trimmed 0.891 V reference and external resistive divider, critical for FPGA core rail tolerance. |
| Switching Frequency Range | 280 kHz to 1.6 MHz - adjustable via RT resistor or SYNC input, enabling EMI optimization and small external L/C selection. |
| Thermal Shutdown Threshold | 150°C - protects against sustained overload or poor PCB thermal design; 10°C hysteresis prevents cycling. |
| Current Limit Trip Point | 7.2 A (VIN = 3 V) to 12 A (VIN = 6 V) - peak-current limiting with 100 ns blanking ensures robust short-circuit protection. |
| Quiescent Current | 13.9–23.5 mA - measured at 350/550 kHz switching, enabling efficient light-load operation in always-on systems. |
Pinout & Package
TPS54617RUVR/2801 uses a 34-pin QFN (RUV) PowerPAD™ package measuring 3.5 mm × 7 mm with exposed thermal pad soldered to AGND. The package eliminates external heatsinks and enables high-power density designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AGND (Pin 1) | Analog ground reference | Return for compensation network, VBIAS capacitor, RT resistor, and SYNC; must be tied to PowerPAD and isolated from noisy PGND traces. |
| BOOT (Pin 5) | Bootstrap supply node | Connects 0.022–0.1 µF ceramic capacitor to PH to generate floating gate drive for high-side MOSFET. |
| COMP (Pin 3) | Error amplifier output | Interface for external Type-3 compensation network between COMP and VSENSE to stabilize loop dynamics. |
| PGND (Pins 13–20, 30–34) | Power ground return | High-current path for low-side FET and input/output capacitors; requires wide copper pours and single-point tie to AGND. |
| PH (Pins 6–12) | Phase node | Switching node connecting internal FETs to output inductor; must be routed short and adjacent to inductor to minimize EMI. |
| PWRGD (Pin 4) | Power-good indicator | Open-drain output active high when VSENSE ≥ 90% Vref; used for processor reset sequencing and fault signaling. |
| RT (Pin 29) | Frequency setting input | Resistor-to-AGND sets fs from 280 kHz to 1.6 MHz; required for external sync or non-default frequencies. |
| SS/ENA (Pin 27) | Enable/slow-start control | Logic-high (>1.2 V) enables operation; capacitor-to-AGND extends soft-start time beyond internal 3.35 ms. |
| SYNC (Pin 28) | Frequency synchronization | Accepts external clock (330–1600 kHz) or selects internal 350/550 kHz; requires RT resistor when syncing. |
| VBIAS (Pin 26) | Bias regulator output | 2.7–2.9 V regulated supply for internal circuitry; bypass with 0.1–1 µF ceramic capacitor to AGND. |
| VIN (Pins 21–25) | Main input supply | 3–6 V input for power switches and bias regulator; requires local 10 µF ceramic bypass to PGND. |
| VSENSE (Pin 2) | Feedback sense input | Inverting input of error amplifier; connected to output voltage divider to regulate VOUT down to 0.9 V. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 30-mΩ MOSFETs | Enables 6-A continuous output without external power devices, reducing BOM count and layout area. |
| Externally compensated control loop | Allows full loop tuning (Type-3) for optimal transient response across varying output capacitance and load conditions. |
| Adjustable 280 kHz–1.6 MHz switching | Permits EMI spread-spectrum alignment and use of smaller inductors (e.g., 0.82 µH at 1.6 MHz). |
| PowerPAD™ thermal package | 3.5 mm × 7 mm QFN with exposed die pad achieves 0.5°C/W junction-to-case thermal impedance for high-power density. |
| Dual-function SS/ENA and SYNC pins | Reduces external component count: one pin handles enable control and programmable soft-start; another handles frequency selection or sync. |
Applications
| FPGA Core Supply | ASIC I/O Rail Regulation |
|---|---|
|
Use Scenario: Providing tightly regulated 1.2 V or 1.8 V to Xilinx or Intel FPGA core logic under dynamic load steps up to 6 A. IC Role / Device Role / Timing Role: Primary point-of-load buck regulator delivering stable voltage with <1% line/load regulation and fast transient recovery. Use Value: Maintains FPGA timing closure during burst-mode processing by limiting output deviation to ±0.018 V at 6-A step load. |
Use Scenario: Generating 2.5 V or 3.3 V for ASIC I/O banks requiring low-noise, high-current supply with sequencing control. IC Role / Device Role / Timing Role: Synchronous buck converter with PWRGD output used for power-up/down sequencing with host processor. Use Value: Ensures reliable I/O interface initialization by asserting PWRGD only after VOUT reaches 90% of target within 3.35 ms. |
| Networking Processor SoC | Optical Transceiver Module |
|
Use Scenario: Powering multi-core communications processors (e.g., TI KeyStone, Marvell ARMADA) with 1.0 V–1.3 V core rails. IC Role / Device Role / Timing Role: High-efficiency buck regulator operating at 1.6 MHz to avoid interference with SerDes clock domains. Use Value: Achieves >92% efficiency at 5 V input / 1.1 V @ 4 A, minimizing heat in space-constrained telecom modules. |
Use Scenario: Supplying 3.3 V bias to laser driver ICs and transimpedance amplifiers in SFP+ and QSFP modules. IC Role / Device Role / Timing Role: Compact, thermally robust DC/DC stage placed directly on optical module PCB near sensitive analog circuitry. Use Value: Delivers clean 3.3 V with <10 mVpp ripple at 1.6 MHz, preventing noise coupling into high-gain RF front-end paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54610RHLR | Same SWIFT™ architecture but fixed 350 kHz frequency; no SYNC or RT pins; 32-pin QFN (RHL) package. | Lacks frequency adjustability and sync capability; suited for cost-sensitive, fixed-frequency designs where layout space allows larger L/C. | Select TPS54610RHLR only if 350 kHz operation suffices and board area permits larger filter components. |
| TPS54620RGYT | Higher VIN range (4.5–17 V); 6-A rating; includes PMBus interface and telemetry; 28-pin QFN (RGY) package. | Designed for industrial/mid-range input systems; adds digital monitoring but increases complexity and cost. | Choose TPS54620RGYT when input exceeds 6 V or telemetry (VOUT, IOUT, temperature) is required for system health monitoring. |
Compared with TPS54617RUVR/2801, TPS54610RHLR sacrifices frequency flexibility for lower pin count and cost, while TPS54620RGYT trades low-voltage optimization for wider input range and digital control - neither is pin-compatible, and both require PCB redesign.
Availability
TPS54617RUVR/2801 is available at Aetrix Electronics and suitable for FPGA power delivery, networking SoC regulation, optical transceiver biasing, and industrial embedded computing requiring stable component supply and long-term production continuity.
Supply support for TPS54617RUVR/2801 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 TPS54617RUVR/2801 belongs to TI's SWIFT™ family of synchronous buck regulators, engineered specifically for high-density, low-input-voltage point-of-load applications in FPGA, ASIC, and DSP systems.
FAQ
What is the maximum output current capability of the TPS54617RUVR/2801?
The TPS54617RUVR/2801 delivers up to 6 A continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). This is enabled by its integrated 30-mΩ high- and low-side MOSFETs and 34-pin QFN PowerPAD™ package with 0.5°C/W junction-to-case thermal resistance. Peak current limit ranges from 7.2 A (at 3 V input) to 12 A (at 6 V input), providing robust short-circuit protection.
Does the TPS54617RUVR/2801 support external frequency synchronization?
Yes, the TPS54617RUVR/2801 supports external synchronization via the SYNC pin, accepting input clocks from 330 kHz to 1.6 MHz. When using SYNC, a resistor must be connected from the RT pin to AGND to set the free-running frequency to ~80% of the sync signal - for example, a 27 kΩ resistor configures RT for 1.6 MHz operation when synchronizing to a 2 MHz source.
How is output voltage adjusted on the TPS54617RUVR/2801?
The TPS54617RUVR/2801 uses an external resistive divider connected to the VSENSE pin to set output voltage down to 0.9 V. With a precision 0.891 V internal reference (±1% accuracy), the formula is VOUT = 0.891 × (1 + R1/R2). For example, a 10.0 kΩ top resistor (R1) and 10.0 kΩ bottom resistor (R2) yields 1.782 V. Compensation components connect between VSENSE and COMP to ensure stability.
What thermal management is required for full 6-A operation of the TPS54617RUVR/2801?
For full 6-A operation, the TPS54617RUVR/2801 requires a minimum of 12 thermal vias under its exposed PowerPAD™ connected to a solid AGND plane. TI recommends a 3-inch × 3-inch, 1-ounce copper ground plane on at least one internal layer. The package achieves 0.5°C/W junction-to-case thermal impedance, but ambient temperature and airflow significantly impact achievable load current - derating is necessary above 60°C ambient.
Can the TPS54617RUVR/2801 be used with input voltages below 3 V?
No, the TPS54617RUVR/2801 has a guaranteed minimum input voltage of 3 V due to its UVLO circuit (start threshold: 2.95 V, stop threshold: 2.80 V). Operation below 3 V is not supported and will result in device disablement. For sub-3-V inputs, alternative regulators such as the TPS6286x series (1.8–5.5 V input) should be evaluated.
TPS54617RUVR/2801 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SWIFT™
- Package/Case:
- 34-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.891V
- Voltage - Output (Max):
- 5.4V
- Current - Output:
- 6A
- Frequency - Switching:
- 350kHz, 550kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 34-VQFN (7x3.5)
TPS54617RUVR/2801 FAQ
1.How can I place an order for TPS54617RUVR/2801 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54617RUVR/2801 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 TPS54617RUVR/2801 reliable?
The price and inventory of TPS54617RUVR/2801 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54617RUVR/2801 is usually 5 days.
3.What payment methods are accepted for TPS54617RUVR/2801?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54617RUVR/2801 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54617RUVR/2801?
TPS54617RUVR/2801 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54617RUVR/2801 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 TPS54617RUVR/2801?
For technical support, including TPS54617RUVR/2801 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54617RUVR/2801 requirements.
6.How does Aetrix verify that TPS54617RUVR/2801 is sourced from the original manufacturer or authorized distributors?
All TPS54617RUVR/2801 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 TPS54617RUVR/2801 meets industry standards.
7.What is the process for return or replacement of TPS54617RUVR/2801?
All TPS54617RUVR/2801 units undergo pre-shipment inspection (PSI). If there is an issue with TPS54617RUVR/2801, 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 TPS54617RUVR/2801 part is unused and in its original packaging.
Return procedure for TPS54617RUVR/2801:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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