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Texas Instruments TPS62867RQYR
- Part No.:
- TPS62867RQYR
- Manufacturer:
- Texas Instruments
- Package:
- 9-PowerVFQFN
- Datasheet:
-
TPS62867RQYR.pdf
- Description:
- IC REG BUCK ADJ 6A 9VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,153
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Product details
Overview
TPS62867RQYR from Texas Instruments is a 6-A synchronous step-down DC/DC converter with DCS-Control topology, 2.4-MHz switching frequency, 1% output voltage accuracy, and 4-µA quiescent current. It operates from 2.4 V to 5.5 V input and delivers adjustable or fixed output (0.6 V to VIN), targeting FPGA core rails and high-density power delivery in optical modules and SSDs.
For engineers reviewing the TPS62867RQYR datasheet, TPS62867RQYR pinout, TPS62867RQYR application, or TPS62867RQYR equivalent, key selection considerations include its 1.5-mm × 2.5-mm QFN-9 package, hiccup short-circuit protection, forced-PWM/power-save mode control via VSET/MODE, and integrated 11-mΩ/10.5-mΩ MOSFETs enabling compact ≤30-mm² designs.
Technical Context
The TPS62867RQYR implements DCS-Control architecture-combining hysteretic and current-mode regulation-to achieve seamless PWM-to-power-save transitions without output disturbance. Its internal 11-mΩ high-side and 10.5-mΩ low-side MOSFETs support continuous 6-A output with thermal shutdown (150°C) and undervoltage lockout (2.2–2.4 V).
It features dual-mode operation: forced PWM (2.4 MHz, low ripple) for noise-sensitive loads and automatic power-save mode at light load, maintaining >85% efficiency down to 1 mA. The VOS pin enables precise output voltage sensing and discharge, while PG provides open-drain power-good signaling with 34-µs deglitching and window-comparator thresholds (±9% to ±20%).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6 A continuous; supports high-current FPGA/ASIC core rails without external current sharing |
| Input Voltage Range | 2.4 V to 5.5 V; compatible with single-cell Li-ion, USB PD, and intermediate bus architectures |
| Switching Frequency | 2.4 MHz nominal; enables use of sub-1-µH inductors and reduces EMI filter size |
| Output Voltage Accuracy | ±1% over temperature and line/load; ensures stable logic supply for 0.9-V and 1.2-V I/O domains |
| Quiescent Current | 4 µA in non-switching state; extends battery life in always-on subsystems |
| Package | 1.5-mm × 2.5-mm QFN-9 with 0.5-mm pitch; supports ultra-compact PCB layouts (<30 mm² solution) |
| Protection Features | Hiccup short-circuit, thermal shutdown (150°C), UVLO (2.2–2.4 V), and output discharge via VOS pin |
Pinout & Package
The TPS62867RQYR is housed in a thermally enhanced 1.5-mm × 2.5-mm QFN-9 package (RQY) with exposed thermal pad, optimized for high-power density and efficient heat dissipation in space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AGND | Analog ground reference | Separate ground for feedback and control circuitry; must be connected to quiet analog ground plane |
| FB | Feedback input | Connects directly to output for fixed-voltage versions; sets regulated output in adjustable configurations via resistor divider |
| VOS | Output voltage sense | Direct connection to output capacitor; enables accurate remote sensing and controlled output discharge during shutdown |
| PGND | Power ground return | High-current return path for switch node and inductor; requires low-inductance connection to thermal pad |
| SW | Switch node | Drives external inductor; connects to internal high-side/low-side MOSFETs; requires tight layout to minimize ringing |
| VIN | Input power supply | Accepts 2.4–5.5 V; requires local 10-µF ceramic decoupling placed adjacent to pin |
| EN | Enable control | Active-high logic input; must be pulled high to operate; floating state disables device |
| VSET/MODE | Voltage configuration & mode select | Resistor-programmed for fixed output (e.g., 133 kΩ = 1.8 V); post-startup logic level selects forced-PWM (high) or power-save (low) |
| PG | Power-good indicator | Open-drain output with 34-µs deglitch; sinks 1 mA; used for rail sequencing and system monitoring |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control topology | Enables <10-µs load transient response with <1% output deviation-critical for burst-mode FPGA workloads |
| Integrated MOSFETs | 11-mΩ high-side + 10.5-mΩ low-side RDS(on) minimizes conduction loss and eliminates external FET layout complexity |
| 100% duty cycle mode | Maintains regulation when VIN approaches VOUT (e.g., 3.3-V input → 3.0-V output), avoiding dropout failure |
| Output voltage discharge | Internal discharge path through VOS pin clears output capacitance during shutdown-prevents back-powering of downstream circuits |
| WEBENCH® integration | Full parametric design support in TI's WEBENCH Power Designer-including thermal simulation, BOM generation, and CAD export |
Applications
| Core Supply for FPGAs and ASICs | Optical Modules |
|---|---|
Use Scenario: Powering 0.85-V to 1.2-V core rails of Xilinx Kria or Intel Agilex FPGAs under dynamic load transients up to 4 A/µs. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated, low-noise core voltage with fast transient recovery. Use Value: DCS-Control ensures <1% output deviation during 5-A load steps, eliminating need for large bulk capacitance and reducing total solution size to <30 mm². | Use Scenario: Supplying 3.3-V bias to laser diode drivers and transimpedance amplifiers in 100G QSFP-DD optical transceivers. IC Role / Device Role / Timing Role: High-efficiency, low-ripple power source operating in forced-PWM mode to suppress switching noise near sensitive analog front-ends. Use Value: 2.4-MHz fixed-frequency operation enables simple LC filtering; 4-µA quiescent current preserves standby power budget in hot-pluggable modules. |
| Solid-State Drives | Machine Vision Cameras |
Use Scenario: Generating 1.8-V I/O and 1.2-V core supplies for NVMe SSD controllers with bursty 6-A peak current demands. IC Role / Device Role / Timing Role: High-current buck converter supporting both steady-state efficiency and rapid load-step response during NAND flash programming. Use Value: 6-A rating and hiccup protection prevent shutdown during sustained write operations; thermal shutdown (150°C) safeguards against enclosure overheating. | Use Scenario: Powering image sensor analog front-end and ISP SoC in industrial CMOS cameras requiring low EMI and zero output droop during frame capture bursts. IC Role / Device Role / Timing Role: Compact, high-density power stage delivering clean 1.1-V and 2.8-V rails with minimal board area consumption. Use Value: 1.5-mm × 2.5-mm QFN-9 package fits within tight camera module height constraints; PG signal synchronizes power-up with FPGA configuration. |
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 |
|---|---|---|---|
| TPS62865RQYR | 4-A output rating; identical pinout, package, and feature set except lower current capability and 5-A high-side current limit | Suitable for lower-power FPGAs or dual-rail systems where 4-A per rail suffices | Select when full 6-A headroom is unnecessary-reduces cost and thermal margin requirements |
| MP2174GQZ-P | Monolithic 6-A buck with 2.2-MHz switching, but lacks DCS-Control, PG pin, and VOS-sense; uses standard current-mode control | Applicable where fast transient response is less critical and system-level power sequencing is handled externally | Choose for cost-sensitive consumer applications where TI's DCS-Control and integrated PG are not required |
Compared with TPS62867RQYR, TPS62865RQYR offers identical footprint and control features at reduced current capacity, while MP2174GQZ-P provides a lower-cost alternative without DCS-Control or precision power-good signaling-making TPS62867RQYR optimal for high-performance, space-constrained industrial and telecom power rails.
Availability
TPS62867RQYR is available at Aetrix Electronics and suitable for FPGA core supplies, optical module biasing, and solid-state drive power delivery requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS62867RQYR 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 TPS62867RQYR belongs to TI's DCS-Control high-density buck converter family, designed specifically for ultra-compact, high-current power delivery in next-generation computing, optical, and storage systems where thermal performance and transient response are critical.
FAQ
What is the maximum continuous output current supported by the TPS62867RQYR?
The TPS62867RQYR supports 6 A of continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). Its high-side FET current limit is 7–8.5 A and low-side limit is 6.5 A, enabling robust overload handling. Derating is required above 85°C ambient; full 6-A operation assumes adequate copper area and thermal vias beneath the exposed pad.
Does the TPS62867RQYR support fixed-output voltage configurations?
Yes, the TPS62867RQYR supports fixed-output voltage operation using an external resistor on the VSET/MODE pin-for example, a 133-kΩ resistor sets 1.8 V. In fixed mode, the FB pin connects directly to the output, eliminating the need for a feedback divider. This simplifies layout and improves accuracy versus adjustable configurations.
How does the TPS62867RQYR manage light-load efficiency?
The TPS62867RQYR automatically enters power-save mode (PSM) at light loads, reducing switching frequency and quiescent current to 4 µA. Alternatively, forcing PWM mode via the VSET/MODE pin maintains 2.4-MHz operation for low-noise applications-though efficiency drops below ~10 mA. PSM ensures >85% efficiency down to 1 mA output current.
What protection features are integrated into the TPS62867RQYR?
The TPS62867RQYR integrates hiccup short-circuit protection (32-cycle fault detection with auto-restart), thermal shutdown (150°C trip with 20°C hysteresis), undervoltage lockout (2.2–2.4 V), and output voltage discharge via the VOS pin. These features eliminate need for external protection circuitry and ensure safe operation during fault conditions.
Can the TPS62867RQYR operate with an input voltage equal to the output voltage?
Yes, the TPS62867RQYR supports 100% duty cycle mode, allowing it to maintain regulation when VIN approaches VOUT (e.g., 3.3-V input → 3.0-V output). In this mode, the high-side FET remains continuously on, and output voltage equals VIN minus the drop across the FET's RDS(on) and inductor DCR-enabling dropout-free operation in intermediate bus applications.
TPS62867RQYR 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):
- 5.5V
- 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)
TPS62867RQYR FAQ
1.How can I place an order for TPS62867RQYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62867RQYR 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 TPS62867RQYR reliable?
The price and inventory of TPS62867RQYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62867RQYR is usually 5 days.
3.What payment methods are accepted for TPS62867RQYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62867RQYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62867RQYR?
TPS62867RQYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62867RQYR 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 TPS62867RQYR?
For technical support, including TPS62867RQYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62867RQYR requirements.
6.How does Aetrix verify that TPS62867RQYR is sourced from the original manufacturer or authorized distributors?
All TPS62867RQYR 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 TPS62867RQYR meets industry standards.
7.What is the process for return or replacement of TPS62867RQYR?
All TPS62867RQYR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62867RQYR, 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 TPS62867RQYR part is unused and in its original packaging.
Return procedure for TPS62867RQYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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