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Texas Instruments TPS54610PWPRG4
- Part No.:
- TPS54610PWPRG4
- Manufacturer:
- Texas Instruments
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS54610PWPRG4.pdf
- Description:
- IC REG BUCK ADJ 6A 28HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,529
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Product details
Overview
TPS54610PWPRG4 from Texas Instruments is a synchronous buck PWM converter IC with integrated 30-mΩ high- and low-side MOSFETs, delivering up to 6-A continuous output current at adjustable output voltages down to 0.9 V (1.0% accuracy), operating from 3-V to 6-V input, and supporting fixed or adjustable switching frequencies from 280 kHz to 700 kHz - used for point-of-load regulation in FPGA and microprocessor power supplies.
For engineers reviewing the TPS54610PWPRG4 datasheet, TPS54610PWPRG4 pinout, TPS54610PWPRG4 application, or TPS54610PWPRG4 equivalent, key selection considerations include its HTSSOP-28 PowerPAD™ thermal package, internal slow-start timing (3.35 ms), power-good open-drain signaling, undervoltage lockout (2.95 V start), and cycle-by-cycle overcurrent protection with 200 ns response.
Technical Context
The TPS54610PWPRG4 implements a voltage-mode synchronous buck topology with a high-performance error amplifier enabling flexible external LC filter design, adaptive dead-time control to prevent shoot-through, and integrated bootstrap circuitry for high-side gate drive. Its PWM comparator uses a dedicated ramp generator with valley voltage of 0.75 V and peak-to-peak amplitude of 1 V.
Control logic includes cycle-by-cycle current limiting triggered by high-side MOSFET current sensing, leading-edge blanking (100 ns), and thermal shutdown activation at 150°C with 10°C hysteresis. The device supports both internal frequency selection (350/550 kHz via SYNC pin) and external resistor-based tuning (RT pin) across 280–700 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 6 V - enables direct use with 3.3-V and 5-V intermediate bus rails without pre-regulation. |
| Output Current | 6 A continuous - supports high-current digital loads including FPGAs and DSPs without external current sharing. |
| Output Voltage Accuracy | ±1.0% over line/load/temperature - ensures stable core voltage regulation for sensitive processors. |
| Switching Frequency | Adjustable 280–700 kHz - allows optimization of size (higher f = smaller L/C) vs. efficiency (lower f = lower switching loss). |
| Integrated MOSFET rDS(on) | 26 mΩ (high-side, VI = 6 V) - reduces conduction loss and eliminates need for external power switches. |
| Power-Good Threshold | VSENSE ≥ 90% Vref (0.802 V nominal) - provides reliable sequencing signal for downstream logic reset or enable control. |
| Thermal Shutdown | 150°C trip with 10°C hysteresis - protects against sustained overload or poor PCB thermal design without latch-up. |
Pinout & Package
The TPS54610PWPRG4 is housed in a thermally enhanced 28-pin HTSSOP (PWP) package with exposed PowerPAD™ thermal pad (9.70 mm × 6.40 mm), requiring solder connection to AGND plane for optimal junction-to-board thermal resistance (15.1 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AGND (Pin 1) | Analog ground reference | Return path for compensation network, VBIAS capacitor, RT resistor, and SYNC; must connect PowerPAD™ to AGND. |
| BOOT (Pin 5) | Bootstrap supply node | Drives high-side MOSFET gate via 0.022–0.1 μF ceramic capacitor to PH; enables floating gate drive without external charge pump. |
| COMP (Pin 3) | Error amplifier output | Connects external Type II/III compensation network to VSENSE; sets loop stability and transient response. |
| PGND (Pins 15–19) | Power ground return | High-current return for low-side FET and inductor; requires large copper pour and single-point tie to AGND. |
| PH (Pins 6–14) | Phase node | Junction of internal high-/low-side FETs and output inductor; carries full switching current and requires minimized trace inductance. |
| PWRGD (Pin 4) | Open-drain power-good indicator | Signals valid output (VSENSE ≥ 90% Vref); pulled low during UVLO, SS/ENA disable, or thermal shutdown. |
| RT (Pin 28) | Frequency setting input | Resistor to AGND sets free-running frequency (e.g., 100 kΩ → ~500 kHz); required when using SYNC for external clock sync. |
| SS/ENA (Pin 26) | Enable/slow-start control | Logic-high (>1.2 V) enables operation; external capacitor extends soft-start time beyond internal 3.35 ms. |
| VBIAS (Pin 25) | Bias regulator output | Supplies internal analog/digital blocks; bypassed with 0.1–1.0 μF ceramic cap to AGND; usable as external reference. |
| VIN (Pins 20–24) | Main input supply | Feeds power FETs and internal bias regulator; each pin must be bypassed with 10 μF ceramic cap close to PGND. |
| VSENSE (Pin 2) | Feedback input | Inverting input of error amplifier; connects to output divider; high-impedance (60–250 nA bias current) for precision regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 30-mΩ MOSFETs | Enables compact 6-A solution without external switches, reducing BOM count and layout complexity. |
| Adjustable 0.9-V output | Supports modern low-voltage cores (e.g., 0.9 V for ARM Cortex-A series) with ±1.0% accuracy across temperature. |
| Synchronizable 280–700 kHz | Allows EMI reduction via frequency dithering or system-level clock alignment to avoid beat frequencies. |
| Internal slow-start (3.35 ms) | Prevents inrush current damage to input capacitors and downstream loads during power-up sequencing. |
| Power-good open-drain output | Provides processor reset coordination, fault signaling, and multi-rail supply sequencing without external logic. |
| Undervoltage lockout (2.95 V) | Blocks startup until input rail stabilizes, preventing erratic behavior or brownout-induced latch-up. |
Applications
| Point-of-Load FPGA Supply | Microprocessor Core Rail |
|---|---|
Use Scenario: Powers Xilinx Artix-7 FPGA core voltage (VCCINT) from 5-V intermediate bus in industrial PLC controller. IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing tightly regulated 1.0-V output with fast transient response to dynamic logic switching. Use Value: Integrated MOSFETs and 6-A capability eliminate external power stage, while ±1.0% accuracy ensures FPGA timing margin compliance. | Use Scenario: Delivers 0.95-V core voltage to TI Sitara AM5728 processor in embedded vision system with thermal constraints. IC Role / Device Role / Timing Role: High-efficiency step-down converter with thermal shutdown and PWRGD signaling for safe boot sequence and thermal management. Use Value: HTSSOP PowerPAD™ package achieves 15.1 °C/W θJB, enabling 6-A operation without heatsink in confined enclosure space. |
| Optical Transceiver Bias | Notebook System Memory Rail |
Use Scenario: Generates stable 3.3-V bias for SFP+ optical module laser drivers in telecom access equipment. IC Role / Device Role / Timing Role: Adjustable-output buck converter with low-noise regulation and precise power-good assertion for module initialization. Use Value: 350 kHz fixed frequency minimizes conducted EMI near sensitive RF front-end, while 1.0% accuracy maintains laser bias stability. | Use Scenario: Supplies DDR3L memory termination voltage (VTT = 0.75 V) and auxiliary 1.5-V rail in ultra-thin notebook design. IC Role / Device Role / Timing Role: Dual-output capable (with external resistive divider) synchronous buck providing sequenced, low-ripple memory bias. Use Value: Internal slow-start and PWRGD enable strict JEDEC-compliant memory power-up timing without external controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54612PWPR | Fixed 1.2-V output (non-adjustable); same 6-A rating, HTSSOP-28 package, and feature set. | Eliminates feedback resistor network but lacks flexibility for sub-1.2-V cores or custom voltages. | Select when 1.2-V output suffices and board space savings from omitted resistors is critical. |
| LM26420XSDE/NOPB | Dual-output (2×3-A), 4.5–5.5-V input range, 600-kHz fixed frequency; no PowerPAD™, SOIC-16 package. | Supports dual-rail systems but offers lower max current per channel and higher thermal resistance (42 °C/W). | Choose for space-constrained dual-rail designs where 3-A per rail meets requirements and thermal budget allows SOIC package. |
Compared with TPS54610PWPRG4, TPS54612PWPR trades adjustability for simplified layout and guaranteed 1.2-V accuracy, while LM26420XSDE/NOPB provides dual outputs at lower per-channel current and reduced thermal performance - making TPS54610PWPRG4 optimal for single-rail, high-current, thermally demanding applications.
Availability
TPS54610PWPRG4 is available at Aetrix Electronics and suitable for FPGA power delivery, microprocessor core supplies, and optical transceiver biasing requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS54610PWPRG4 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-efficiency DC/DC conversion.
The TPS546xx family was designed specifically for high-density, high-current point-of-load applications in communications infrastructure, computing, and industrial systems - emphasizing thermal performance, integration, and robust protection features.
FAQ
What is the recommended input capacitor configuration for TPS54610PWPRG4?
TPS54610PWPRG4 requires individual 10-μF ceramic capacitors placed as close as possible between each VIN pin (20–24) and adjacent PGND pins, using X5R/X7R dielectric with low ESR. This minimizes high-frequency input ripple and prevents instability due to parasitic inductance in shared input paths.
Does TPS54610PWPRG4 support pre-biased output startup?
Yes, TPS54610PWPRG4 supports pre-biased output startup: when enabled, it sinks current from the output to bring VSENSE below the reference before beginning normal regulation, preventing reverse current flow into powered-down downstream circuits during hot-plug scenarios.
How is the switching frequency set on TPS54610PWPRG4?
TPS54610PWPRG4 switching frequency is set via the RT pin (resistor to AGND) for 280–700 kHz adjustment, or via the SYNC pin: logic-low (≤0.8 V) selects 350 kHz, logic-high (≥2.5 V) selects 550 kHz. Floating SYNC enables RT-based tuning; external sync requires RT resistor set to ~80% of target frequency.
What thermal design guidance applies to TPS54610PWPRG4's PowerPAD™?
For TPS54610PWPRG4, the exposed PowerPAD™ must be soldered to a minimum 400 mm² copper area connected to AGND, with ≥6 thermal vias (0.3-mm diameter, 0.8-mm pitch) to inner/ground planes. This achieves the specified 15.1 °C/W θJB and prevents thermal shutdown under 6-A load at 85°C ambient.
Can TPS54610PWPRG4 operate with an input voltage below 3 V?
No, TPS54610PWPRG4 incorporates undervoltage lockout with a 2.95-V start threshold and 2.8-V stop threshold. Operation below 3 V is disabled to prevent malfunction; the device remains in shutdown until VIN exceeds 2.95 V, ensuring reliable startup and regulation integrity.
TPS54610PWPRG4 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:
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-HTSSOP
TPS54610PWPRG4 FAQ
1.How can I place an order for TPS54610PWPRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54610PWPRG4 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 TPS54610PWPRG4 reliable?
The price and inventory of TPS54610PWPRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54610PWPRG4 is usually 5 days.
3.What payment methods are accepted for TPS54610PWPRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54610PWPRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54610PWPRG4?
TPS54610PWPRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54610PWPRG4 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 TPS54610PWPRG4?
For technical support, including TPS54610PWPRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54610PWPRG4 requirements.
6.How does Aetrix verify that TPS54610PWPRG4 is sourced from the original manufacturer or authorized distributors?
All TPS54610PWPRG4 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 TPS54610PWPRG4 meets industry standards.
7.What is the process for return or replacement of TPS54610PWPRG4?
All TPS54610PWPRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS54610PWPRG4, 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 TPS54610PWPRG4 part is unused and in its original packaging.
Return procedure for TPS54610PWPRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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