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Texas Instruments TPS628692ARQYR
- Part No.:
- TPS628692ARQYR
- Manufacturer:
- Texas Instruments
- Package:
- 9-PowerVFQFN
- Datasheet:
-
TPS628692ARQYR.pdf
- Description:
- IC REG BUCK ADJ 6A 9VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:8,682
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Product details
Overview
TPS628692ARQYR from Texas Instruments is a 4-A to 6-A synchronous step-down DC/DC converter with I²C interface, designed for high-density core power delivery in FPGAs and LPDDR5 memory subsystems. It operates from 2.4 V to 5.5 V input, delivers output from 0.8 V to 3.35 V in 10-mV steps, achieves >90% efficiency at 0.9-V output, and features DCS-Control™ architecture for fast transient response.
For engineers reviewing the TPS628692ARQYR datasheet, TPS628692ARQYR pinout, TPS628692ARQYR application, or TPS628692ARQYR equivalent, key selection criteria include its 2.4-MHz switching frequency, 1% output voltage accuracy, thermal pre-warning capability, I²C-compatible interface up to 3.4 Mbps, and QFN-9 (1.5 × 2.5 mm) package with integrated 11-mΩ/10.5-mΩ MOSFETs.
Technical Context
The TPS628692ARQYR implements DCS-Control™ topology, enabling seamless transition between PWM mode (2.4 MHz fixed frequency) and Power Save Mode at light loads while maintaining tight regulation and low ripple. Its internal high-side and low-side MOSFETs (11 mΩ / 10.5 mΩ) support continuous 6-A output with thermal warning at 130°C and shutdown at 150°C.
I²C configuration enables dynamic voltage scaling (DVS), forced PWM mode, output discharge control, hiccup/latching short-circuit protection, and programmable ramp speed - all without external components. The VSET/VID pin sets start-up voltage (0.8 V to 2.3 V selectable) and I²C address, while VOS provides precision output voltage sensing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.4 V to 5.5 V - supports single-cell Li-ion, USB PD, and industrial 3.3-V/5-V rails. |
| Output Voltage Range | 0.8 V to 3.35 V in 10-mV steps - enables precise DVS for LPDDR5 VDDQ and FPGA core rails. |
| Max Output Current | 6 A - sufficient for high-performance SoC core supplies with margin for peak transients. |
| Switching Frequency | 2.4 MHz - allows use of ultra-small 0.22-µH inductors and compact ceramic output capacitors. |
| Output Accuracy | ±1% - ensures stable operation of voltage-sensitive logic cores and memory interfaces. |
| I²C Speed Support | Up to 3.4 Mbps (High-Speed mode) - enables rapid voltage updates during performance state transitions. |
| Thermal Warning Threshold | 130°C - provides early system-level thermal management signal before shutdown at 150°C. |
| Package | 9-pin QFN (RQY), 1.5 mm × 2.5 mm × 1.0 mm - optimized for high-power density PCB layouts. |
Pinout & Package
TPS628692ARQYR uses a 1.5-mm × 2.5-mm × 1.0-mm, 0.5-mm pitch, 9-pin QFN package (RQY). Thermal pad on underside requires solder connection to PCB ground plane for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 AGND | Analog ground reference | Separate low-noise return path for feedback and control circuitry; must be connected to quiet analog ground plane. |
| 2 PGND | Power ground return | High-current return path for switch node and output capacitor; connects directly to thermal pad and power ground. |
| 3 VIN | Main input supply | Accepts 2.4–5.5 V; requires local 10-µF ceramic input capacitor placed near pin. |
| 4 EN | Enable control input | Active-high logic input; internal pull-down; must be driven high to initiate startup sequence. |
| 5 SDA | I²C serial data line | Open-drain bidirectional interface; requires external pull-up resistor (typically 2.2 kΩ to 3.3 V). |
| 6 SCL | I²C serial clock line | Input-only clock line; requires external pull-up resistor matching SDA for proper bus timing. |
| 7 SW | Switch node | Connects to inductor; carries high di/dt switching current; requires tight layout with minimal loop area. |
| 8 VOS | Output voltage sense | Direct Kelvin connection to output capacitor anode; critical for ±1% regulation accuracy. |
| 9 VSET/VID | Startup voltage & I²C address | Resistor-programmable start-up voltage (0.8–2.3 V); also selects I²C target address post-startup. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables <10-µs load transient response with <1% undershoot/overshoot - critical for burst-mode CPU/FPGA workloads. |
| Dynamic Voltage Scaling (DVS) | Three programmable output ranges (0.2–0.8375 V, 0.4–1.675 V, 0.8–3.35 V) with fine 10-mV steps - supports LPDDR5 VDDQ rail sequencing and power-state optimization. |
| Forced PWM mode | Eliminates frequency variation at light load, reducing EMI and simplifying filtering for noise-sensitive analog/RF sections. |
| Thermal pre-warning | Dedicated flag at 130°C junction temperature - enables host processor to throttle before thermal shutdown at 150°C. |
| Output discharge via I²C | Activates internal 3.5-Ω discharge path when disabled - prevents floating output during power-down sequences in multi-rail systems. |
| 1% output voltage accuracy | Maintains stable core voltage across temperature (-40°C to 125°C) and line/load variations - essential for sub-1V logic reliability. |
Applications
| LPDDR5 Memory Power | FPGA Core Supply |
|---|---|
Use Scenario: Providing VDDQ rail for LPDDR5 SDRAM in mobile and edge AI accelerators. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering dynamically scaled 0.8–1.1 V at up to 6 A with 10-mV resolution. Use Value: Enables JEDEC-compliant VDDQ tracking and fast DVS transitions (<100 µs) during memory bandwidth adaptation. |
Use Scenario: Powering high-performance FPGA fabric and I/O banks in reconfigurable computing platforms. IC Role / Device Role / Timing Role: Core voltage regulator supporting 0.8–1.2 V range with I²C-controlled voltage stepping during partial reconfiguration. Use Value: Reduces FPGA power consumption by 15–25% through real-time voltage/frequency scaling without external DAC or sequencer. |
| Solid-State Drive Controller | Optical Module Bias Supply |
Use Scenario: Supplying 1.2–1.8 V to NVMe SSD controller ASICs with bursty 4–6 A load profiles. IC Role / Device Role / Timing Role: High-efficiency, high-transient-response buck converter with hiccup-mode short-circuit protection. Use Value: Maintains stable voltage during NAND flash program/erase cycles, preventing data corruption under 5-A transient loads. |
Use Scenario: Generating precision 2.5–3.3 V bias for laser diode drivers and transimpedance amplifiers in 100G optical modules. IC Role / Device Role / Timing Role: Low-noise, tightly regulated auxiliary supply with I²C monitoring and thermal derating capability. Use Value: Ensures <±1% output stability over temperature, minimizing laser wavelength drift and receiver sensitivity loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS628691ARQY | Same package and I²C interface, but 0.4–1.675 V output range with 5-mV steps and 0.4–1.15 V start-up range. | Targeted at mid-range core voltages (e.g., ARM Cortex-A7x clusters), not high-voltage LPDDR5 VDDQ or FPGA I/O rails. | Select TPS628691ARQY when output voltage must stay below 1.675 V and finer 5-mV DVS resolution is required. |
| TPS628682ARQY | Identical 0.8–3.35 V output range and 10-mV steps, but rated for 4-A max output (vs. 6-A for TPS628692ARQY). | Suitable for lower-current applications like mid-tier SoCs or peripheral rails where 6-A headroom is unnecessary. | Choose TPS628682ARQY when thermal budget or cost constraints justify reduced current rating without sacrificing voltage flexibility. |
Compared with TPS628691ARQY and TPS628682ARQY, the TPS628692ARQYR uniquely combines 6-A capability, 0.8–3.35 V DVS range, and 10-mV granularity - making it the only option among the three qualified for LPDDR5 VDDQ and high-current FPGA I/O supply with full I²C configurability.
Availability
TPS628692ARQYR is available at Aetrix Electronics and suitable for LPDDR5 memory power, FPGA core supply, solid-state drive controller, optical module bias, and high-density embedded computing applications requiring stable component supply and long-term production continuity.
Supply support for TPS628692ARQYR 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 and system-level power architecture.
The TPS62868/TPS62869 family was engineered specifically for next-generation memory and processor core power delivery, emphasizing ultra-small footprint, I²C-based dynamic voltage scaling, and robust thermal management in space-constrained applications.
FAQ
What is the maximum output current supported by the TPS628692ARQYR?
The TPS628692ARQYR supports a continuous output current of up to 6 A. This rating is validated under recommended operating conditions (TJ ≤ 85°C) and assumes proper PCB thermal design with the exposed thermal pad soldered to a sufficient copper area. At higher junction temperatures, derating applies per the thermal information table in the datasheet.
Does the TPS628692ARQYR support dynamic voltage scaling (DVS) via I²C?
Yes, the TPS628692ARQYR supports dynamic voltage scaling through its I²C interface. It offers three programmable output voltage ranges: 0.2–0.8375 V (2.5-mV steps), 0.4–1.675 V (5-mV steps), and 0.8–3.35 V (10-mV steps). The TPS628692ARQYR uses the latter range, enabling precise 10-mV adjustments ideal for LPDDR5 VDDQ and FPGA I/O voltage tuning.
What package type and dimensions does the TPS628692ARQYR use?
The TPS628692ARQYR uses a 9-pin QFN package designated RQY, with nominal body dimensions of 1.5 mm × 2.5 mm × 1.0 mm and 0.5-mm pin pitch. It features an exposed thermal pad on the bottom side that must be soldered to the PCB ground plane for effective heat dissipation and optimal electrical performance.
How does the TPS628692ARQYR handle thermal protection?
The TPS628692ARQYR incorporates dual thermal safeguards: a thermal pre-warning flag activates at 130°C junction temperature, allowing host systems to initiate cooling or throttling, and thermal shutdown engages at 150°C to prevent damage. Both thresholds include 20°C hysteresis to avoid oscillation during recovery.
Can the TPS628692ARQYR start up into a pre-biased output?
Yes, the TPS628692ARQYR supports start-up into a pre-biased output. When enabled, it detects the existing output voltage and ramps from that level to the target regulated voltage using its internal soft-start circuitry (1-ms ramp time), preventing reverse current flow and ensuring safe power sequencing in multi-rail systems.
TPS628692ARQYR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 9-PowerVFQFN
- 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):
- 2.4V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 3.35V
- Current - Output:
- 6A
- Frequency - Switching:
- 2.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 9-VQFN-HR (1.5x2.5)
TPS628692ARQYR FAQ
1.How can I place an order for TPS628692ARQYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS628692ARQYR 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 TPS628692ARQYR reliable?
The price and inventory of TPS628692ARQYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS628692ARQYR is usually 5 days.
3.What payment methods are accepted for TPS628692ARQYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS628692ARQYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS628692ARQYR?
TPS628692ARQYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS628692ARQYR 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 TPS628692ARQYR?
For technical support, including TPS628692ARQYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS628692ARQYR requirements.
6.How does Aetrix verify that TPS628692ARQYR is sourced from the original manufacturer or authorized distributors?
All TPS628692ARQYR 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 TPS628692ARQYR meets industry standards.
7.What is the process for return or replacement of TPS628692ARQYR?
All TPS628692ARQYR units undergo pre-shipment inspection (PSI). If there is an issue with TPS628692ARQYR, 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 TPS628692ARQYR part is unused and in its original packaging.
Return procedure for TPS628692ARQYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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