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Texas Instruments TPS54613PWPRG4
- Part No.:
- TPS54613PWPRG4
- Manufacturer:
- Texas Instruments
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS54613PWPRG4.pdf
- Description:
- IC REG BUCK 1.5V 6A 28HTSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS54613PWPRG4 from Texas Instruments is a 3-V to 6-V input, 6-A synchronous buck PWM converter with integrated 30-mΩ high- and low-side MOSFETs, fixed 1.5-V output voltage (±2.0% over temperature/load), internal compensation, and powergood signaling. It delivers high efficiency in point-of-load regulation for FPGAs and microprocessors.
For engineers reviewing the TPS54613PWPRG4 datasheet, TPS54613PWPRG4 pinout, TPS54613PWPRG4 application, or TPS54613PWPRG4 equivalent, key selection criteria include its 350/550 kHz fixed-frequency operation, thermal shutdown at 150°C, 28-pin HTSSOP PowerPAD™ package, and compatibility with 4.7–10 µH inductors and ceramic output capacitors.
Technical Context
The TPS54613PWPRG4 implements a voltage-mode synchronous buck topology with an internally compensated error amplifier (26 dB open-loop gain, 3–5 MHz unity-gain bandwidth) and adaptive dead-time control to prevent shoot-through. Its PWM comparator features 70–85 ns propagation delay and 100 ns leading-edge blanking for robust current-limit response.
It integrates a 2.8-V UVLO with 0.16-V hysteresis, a dual-function SS/ENA pin enabling both logic-level enable and external slow-start timing (3.3 ms internal ramp for 1.5-V output), and a VBIAS regulator (2.7–2.9 V output) powering internal circuitry while supporting external bias use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0 V to 6.0 V - supports direct regulation from 3.3-V or 5-V intermediate bus rails without pre-regulation. |
| Output Voltage | 1.5 V ±2.0% - factory-trimmed fixed output with 0.891-V internal reference; no external resistor divider required. |
| Continuous Output Current | 6 A - sustained load capability enabled by dual 30-mΩ MOSFETs and thermally enhanced HTSSOP PowerPAD™ package. |
| Switching Frequency | 350 kHz or 550 kHz (pin-selectable via FSEL); externally adjustable 280–700 kHz using RT resistor - balances EMI, size, and efficiency. |
| Current Limit Threshold | 7.2–10 A (at VIN = 3 V); 10–12 A (at VIN = 6 V) - cycle-by-cycle peak current limiting with 200 ns total response time. |
| Thermal Shutdown | 150°C trip point with 10°C hysteresis - protects against sustained overload or poor PCB thermal design. |
| Powergood Accuracy | 90% VREF threshold with 3% hysteresis - provides reliable system reset and sequencing for processors/FPGAs. |
Pinout & Package
TPS54613PWPRG4 is housed in a 28-pin HTSSOP (PWP) package with exposed thermal pad (PowerPAD™), optimized for high-current DC/DC conversion and requiring soldered thermal vias to inner ground planes for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AGND | Analog ground reference | Return for SS/ENA capacitor, VBIAS bypass, RT/FSEL resistors; must connect to PowerPAD™ for stable error amplifier operation. |
| BOOT | Bootstrap supply input | Connects 0.022–0.1 µF ceramic capacitor to PH; enables high-side gate drive above VIN during switching. |
| FSEL | Frequency select input | Logic-low (≤0.8 V) selects 350 kHz; logic-high (≥2.5 V) selects 550 kHz; floating enables RT-based frequency setting. |
| PGND (Pins 15–19) | Power ground return | High-current return path for low-side MOSFET and output inductor; requires wide copper pours tied to input/output capacitors. |
| PH (Pins 6–14) | Phase node | Switching node connecting internal MOSFETs and external inductor; critical for EMI layout and thermal dissipation. |
| PWRGD | Open-drain powergood output | Asserts low when VSENSE < 90% VREF, VIN < UVLO, or SS/ENA inactive - used for processor reset and supply sequencing. |
| RT | External frequency set input | Resistor to AGND sets frequency from 280–700 kHz; 180 kΩ → ~280 kHz, 100 kΩ → ~500 kHz, 68 kΩ → ~700 kHz. |
| SS/ENA | Slow-start/enable control | Enable threshold = 1.2 V; internal 3.3-ms soft-start for 1.5-V output; external capacitor extends ramp time linearly. |
| VBIAS | Bias regulator output | 2.7–2.9 V internal LDO output; bypass with 0.1–1 µF X7R/X5R ceramic to AGND; may power external circuits if noise-controlled. |
| VIN (Pins 20–24) | Main input supply | 3–6 V input for power switches and bias regulator; each pin carries portion of input current - requires local 1–10 µF ceramic bypass. |
| VSENSE | Error amplifier inverting input | Direct connection to output voltage feedback point; precision sensing enables tight regulation without external resistors. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 30-mΩ MOSFETs | Eliminates external power switches and reduces conduction losses - enables compact 6-A solution with minimal BOM count. |
| Internally compensated control loop | Removes need for external compensation components; supports standard 4.7–10 µH inductors and ceramic output capacitors. |
| Fast transient response | 10–20 µs recovery time under load steps - maintains regulation during FPGA core voltage transients and processor burst loads. |
| Adaptive dead-time control | Prevents shoot-through by delaying high-side turn-on until low-side gate falls below 2 V - improves efficiency and reliability. |
| Robust protection suite | Includes cycle-by-cycle current limit (200 ns response), thermal shutdown (150°C), UVLO (2.95 V start), and PWRGD fault signaling. |
Applications
| Point-of-Load Regulation for FPGAs | Low-Voltage DSP Core Supply |
|---|---|
|
Use Scenario: Powers 1.5-V core rail of Xilinx Artix-7 or Intel Cyclone V FPGA under dynamic logic switching. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering up to 6 A with fast transient response and precise 1.5-V regulation. Use Value: Maintains <±2.0% output accuracy across –40°C to 125°C junction temperature while supporting rapid current slew rates typical of FPGA core activity. |
Use Scenario: Supplies 1.5-V core voltage to TI C6000 DSPs in industrial motor control systems. IC Role / Device Role / Timing Role: High-efficiency DC/DC converter with thermal shutdown and powergood signaling for safe boot and fault isolation. Use Value: Enables reliable operation under continuous 6-A load with junction temperatures up to 125°C, supported by PowerPAD™ thermal design. |
| Networking ASIC Power Rail | Industrial Embedded Microprocessor Supply |
|
Use Scenario: Generates 1.5-V supply for Broadcom BCM56xx switch ASICs in 1U data center switches. IC Role / Device Role / Timing Role: Fixed-output buck converter with 350 kHz switching and integrated MOSFETs for space-constrained board layouts. Use Value: Reduces solution footprint by eliminating external power switches and compensation network - critical for dense switch fabric PCBs. |
Use Scenario: Provides 1.5-V core voltage to NXP i.MX 8M Mini in ruggedized HMI panels operating at extended temperature. IC Role / Device Role / Timing Role: Robust power management IC with UVLO, thermal shutdown, and PWRGD for fail-safe startup and monitoring. Use Value: Ensures deterministic power sequencing and brownout protection across –40°C to 85°C ambient, meeting industrial lifecycle requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54620RGYT | Same 28-pin QFN package, 6-A rating, but supports adjustable output (0.6–6 V) via external resistor divider; higher quiescent current (1.4 mA vs 8.4–12.8 mA). | Requires external feedback resistors and compensation; better suited for designs needing multiple output voltages or fine-tuning. | Select TPS54620RGYT only if adjustable output or QFN thermal profile is preferred over HTSSOP PowerPAD™. |
| MP2315DJ-LF-Z | Monolithic 6-A buck with 4.5–26 V input range; fixed 1.5-V option available; smaller 8-pin SOIC-EP package; lower max current (6 A vs 6 A continuous, but derated above 85°C). | Lacks PWRGD, SS/ENA flexibility, and internal compensation - requires external loop compensation and sequencing support. | Choose MP2315DJ-LF-Z for cost-sensitive, wide-input applications where 1.5-V fixed output and compact SOIC-EP fit mechanical constraints. |
Compared with TPS54613PWPRG4, TPS54620RGYT offers design flexibility at the cost of added external components and higher IQ, while MP2315DJ-LF-Z trades integrated features (PWRGD, internal compensation, thermal robustness) for smaller footprint and wider input range - neither is pin-compatible, and all require unique PCB layout.
Availability
TPS54613PWPRG4 is available at Aetrix Electronics and suitable for FPGA power delivery, DSP core supplies, networking ASIC rails, and industrial microprocessor applications requiring stable component supply, long-term manufacturability, and automotive-grade thermal resilience.
Supply support for TPS54613PWPRG4 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-reliability DC/DC conversion solutions.
The TPS5461x family was designed specifically for high-density, low-voltage point-of-load applications in computing, communications, and industrial systems - emphasizing integration, thermal efficiency, and ease of implementation.
FAQ
What is the output voltage tolerance of the TPS54613PWPRG4 over temperature and load?
The TPS54613PWPRG4 delivers a fixed 1.5-V output with ±2.0% regulation accuracy across full operating conditions: 3 V ≤ VIN ≤ 6 V, 0 A ≤ IL ≤ 6 A, and –40°C ≤ TJ ≤ 125°C. This specification is guaranteed by TI's production test and applies directly to the TPS54613PWPRG4 without external feedback components.
Does the TPS54613PWPRG4 require external compensation components?
No, the TPS54613PWPRG4 features internal compensation optimized for standard 4.7 µH to 10 µH inductors and ceramic output capacitors. External compensation is not needed - the TPS54613PWPRG4 achieves stable operation with minimal external parts, reducing design complexity and board area.
How does the TPS54613PWPRG4 handle overcurrent events?
The TPS54613PWPRG4 uses cycle-by-cycle peak current limiting with 200 ns total response time and 100 ns leading-edge blanking. When current exceeds the threshold (7.2–12 A depending on VIN), the high-side MOSFET turns off immediately. Thermal shutdown (150°C) provides secondary protection during sustained overload - both mechanisms are fully implemented in the TPS54613PWPRG4.
Can the switching frequency of the TPS54613PWPRG4 be adjusted?
Yes, the TPS54613PWPRG4 supports three frequency modes: 350 kHz (FSEL ≤ 0.8 V), 550 kHz (FSEL ≥ 2.5 V), or externally adjustable 280–700 kHz via RT resistor to AGND. The TPS54613PWPRG4 datasheet specifies exact resistor values (e.g., 100 kΩ → ~500 kHz) and tolerances required for target frequency accuracy.
What thermal performance can be expected from the TPS54613PWPRG4 in a standard PCB layout?
In a 4-layer board with 1.5 oz copper, 12 thermal vias to inner ground planes, and soldered PowerPAD™, the TPS54613PWPRG4 achieves 18.2°C/W junction-to-ambient thermal resistance. At 6-A load and 5-V input, typical power dissipation is ~1.8 W - resulting in ~33°C junction rise above ambient, well within the 125°C max TJ rating.
TPS54613PWPRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SWIFT™
- Package/Case:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- 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:
- 28-HTSSOP
TPS54613PWPRG4 FAQ
1.How can I place an order for TPS54613PWPRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54613PWPRG4 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 TPS54613PWPRG4 reliable?
The price and inventory of TPS54613PWPRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54613PWPRG4 is usually 5 days.
3.What payment methods are accepted for TPS54613PWPRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54613PWPRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54613PWPRG4?
TPS54613PWPRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54613PWPRG4 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 TPS54613PWPRG4?
For technical support, including TPS54613PWPRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54613PWPRG4 requirements.
6.How does Aetrix verify that TPS54613PWPRG4 is sourced from the original manufacturer or authorized distributors?
All TPS54613PWPRG4 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 TPS54613PWPRG4 meets industry standards.
7.What is the process for return or replacement of TPS54613PWPRG4?
All TPS54613PWPRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS54613PWPRG4, 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 TPS54613PWPRG4 part is unused and in its original packaging.
Return procedure for TPS54613PWPRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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