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Texas Instruments TPS6209733RWKT
- Part No.:
- TPS6209733RWKT
- Manufacturer:
- Texas Instruments
- Package:
- 11-PowerVFQFN
- Datasheet:
-
TPS6209733RWKT.pdf
- Description:
- IC REG BUCK 3.3V 2A 11VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:508
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Product details
Overview
TPS6209733RWKT from Texas Instruments is a 2-A synchronous step-down DC/DC converter with fixed 3.3-V output, iDCS-Control topology, forced PWM or power-save mode operation, and selectable 1.5–2.5-MHz switching frequency. It delivers ±1% output voltage accuracy, supports 2.5-V to 6.0-V input, and integrates power-good signaling, hiccup short-circuit protection, and thermal shutdown - deployed in point-of-load regulation for SSDs and industrial PLCs.
For engineers reviewing the TPS6209733RWKT datasheet, TPS6209733RWKT pinout, TPS6209733RWKT application, or TPS6209733RWKT equivalent, key selection criteria include its 3.3-V fixed output, VQFN-11 (RWK) package, 100% duty cycle capability for low-dropout operation, programmable soft-start via SS/TR pin, and compatibility with high-value (>150 µF) ceramic output capacitors for noise-sensitive POL rails.
Technical Context
The TPS6209733RWKT implements iDCS-Control - a predictive on-time architecture enabling seamless transition between PWM and Power Save Mode (PSM), or forced fixed-frequency PWM across full load range. Its control loop uses input/output voltage feedforward to maintain quasi-constant switching frequency while achieving up to 97% efficiency at medium-to-heavy loads.
It integrates dual MOSFET drivers with 40–96-mΩ high-side and 40–85-mΩ low-side RDS(on), 1.0-A minimum current limit (ILIMF = 3.1–4.2 A), and active output discharge (165-Ω internal resistor). The device supports voltage tracking, sequencing, and precise 0.8-V internal reference with ±1% output accuracy over –40°C to 125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V, ±1% accuracy ensures stable rail for 3.3-V logic, I/O, and interface circuits without external feedback divider. |
| Input Voltage Range | 2.5 V to 6.0 V - supports single-cell Li-ion, USB PD, and industrial 3.3/5-V supply domains. |
| Max Output Current | 2.0 A continuous - sufficient for powering FPGA I/O banks, microcontroller peripherals, or SSD controller subsystems. |
| Switching Frequency | Selectable 1.5 MHz to 2.5 MHz via MODE pin resistor - enables EMI optimization and compact filter design with 1-µH inductors. |
| Efficiency | Up to 97% at mid-load - minimizes thermal rise in space-constrained industrial modules and embedded controllers. |
| Package | VQFN-11 (RWK), 2.0 mm × 2.0 mm - thermally enhanced footprint with exposed thermal pad for PCB heat dissipation. |
| Protection Features | Hiccup short-circuit, thermal shutdown (160°C trip), UVLO (2.3 V nominal), and output discharge - ensures robustness in unattended industrial deployments. |
Pinout & Package
VQFN-11 (RWK) package: 2.0 mm × 2.0 mm body, 0.4-mm pitch, exposed thermal pad (PGND-connected), RoHS-compliant, moisture sensitivity level 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND | Power ground | Main return path for high-current switch node; must be connected directly to thermal pad and low-impedance ground plane. |
| SW | Switch node | Connects internal high/low-side MOSFETs to external inductor; requires tight layout to minimize ringing and EMI. |
| VOS | Output voltage sense | Direct connection to output capacitor anode - enables accurate remote sensing and fast transient response. |
| FB | Feedback reference | Internally tied to 0.8-V reference; for fixed-output versions, connect to AGND to improve thermal performance. |
| PG | Power-good open-drain | Signals valid 3.3-V rail (95% threshold); requires external pull-up ≤6 V for sequencing downstream converters or processors. |
| EN | Enable control | Active-high logic input with 375-kΩ internal pulldown; enables/disable sequencing and system-level power management. |
| PVIN | Main power input | High-current VIN path for switch node; separate from AVIN to reduce noise coupling into analog circuitry. |
| AVIN | Analog supply | Bias supply for control circuitry; tie directly to PVIN for simplicity or use separate low-noise LDO if required. |
| SS/TR | Soft-start & tracking | Controls ramp rate via external capacitor; also accepts external voltage for coordinated multi-rail startup or voltage tracking. |
| MODE | Operating mode select | Configures PWM-only (forced) or auto PWM/PSM mode and sets switching frequency via resistor to AGND or open. |
| AGND | Analog ground | Reference for FB, MODE, SS/TR, and PG; must be star-connected near IC to avoid noise injection into control loop. |
Key Features
| Feature | Design Value |
|---|---|
| iDCS-Control topology | Enables seamless PWM-to-PSM transition without output voltage disturbance - critical for noise-sensitive ADCs or RF subsystems. |
| Forced PWM mode | Eliminates variable-frequency PSM artifacts; maintains fixed 1.5–2.5-MHz switching for predictable EMI filtering and reduced acoustic noise. |
| 100% duty cycle operation | Supports dropout as low as VOUT + IOUT×(RDS(on) + DCRL) - extends usable input range down to ~3.5 V for 3.3-V output under full load. |
| Programmable soft start | External capacitor on SS/TR pin sets controlled 3.3-V ramp time - prevents inrush current damage to upstream sources and downstream capacitors. |
| Output voltage tracking | SS/TR pin accepts external voltage ramp to coordinate startup with other rails (e.g., 1.2-V core before 3.3-V I/O) - essential for FPGA and ASIC power sequencing. |
| Integrated power-good | Open-drain PG signal confirms regulation within ±5% of 3.3 V - enables safe processor reset assertion and inter-rail enable chaining. |
Applications
| Solid State Drives (SSDs) | Programmable Logic Controllers (PLCs) |
|---|---|
Use Scenario: Powers NAND flash I/O interface and controller auxiliary rails in M.2 and U.2 SSDs. IC Role / Device Role / Timing Role: Point-of-load regulator delivering clean, sequenced 3.3-V supply with fast transient response to handle burst write/read loads. Use Value: 97% peak efficiency and 100% duty cycle support extend battery life and enable operation from single-cell Li-ion (3.0–4.2 V) without intermediate boost stage. | Use Scenario: Supplies 3.3-V logic and communication interfaces (RS-485, CAN transceivers) in modular PLC backplanes. IC Role / Device Role / Timing Role: Industrial-grade POL converter with hiccup protection and –40°C to 125°C operation for harsh factory-floor environments. Use Value: Thermal shutdown and UVLO ensure fail-safe shutdown during brownouts or overheating - preventing firmware corruption or fieldbus lockup. |
| Motor Drive Control Boards | Industrial Human-Machine Interfaces (HMIs) |
Use Scenario: Provides isolated 3.3-V supply for microcontroller, encoder interface, and gate driver bias in servo drive modules. IC Role / Device Role / Timing Role: High-efficiency buck converter with programmable soft-start to prevent inrush-induced voltage sag during motor startup sequences. Use Value: Forced PWM mode eliminates audible coil whine during low-speed motor operation - improving operator comfort in enclosed enclosures. | Use Scenario: Regulates 3.3-V rail for ARM-based HMI processors, touch controllers, and display backlight drivers in panel-mounted units. IC Role / Device Role / Timing Role: Compact, thermally robust DC/DC with voltage tracking to coordinate 3.3-V I/O rail with 1.2-V core rail during cold boot. Use Value: 2-mm × 2-mm VQFN package and support for >150-µF ceramic output caps enable ultra-thin HMI designs with low-profile capacitors and minimal board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6209718RWKT | Identical package and architecture but fixed 1.8-V output; shares same iDCS-Control, MODE pin configuration, and protection features. | Targets 1.8-V digital core rails instead of 3.3-V I/O or interface rails - not interchangeable without redesigning output filtering and sequencing. | Select when system requires 1.8-V supply with identical thermal, layout, and control characteristics. |
| TPS6285133RTER | SOT-583 package (1.6 mm × 2.1 mm), 1-A output, 6-V max input, ±1% accuracy, but lacks hiccup protection and output discharge; uses different control scheme. | Lower cost, smaller solution size, but limited to 1-A loads and missing robust industrial protections - suitable for consumer-grade portable devices, not mission-critical PLCs. | Choose only for space-constrained, lower-current applications where hiccup protection and 2-A capability are not required. |
Compared with TPS6209718RWKT, the TPS6209733RWKT provides higher output voltage for interface circuits but identical control flexibility and ruggedness; versus TPS6285133RTER, it offers double current capacity, integrated hiccup protection, and proven industrial thermal performance - making it preferable for 2-A, safety-aware designs.
Availability
TPS6209733RWKT is available at Aetrix Electronics and suitable for solid state drives (SSDs), programmable logic controllers (PLCs), and industrial motor drive applications requiring stable component supply, long-term manufacturability, and guaranteed parametric consistency across production lots.
Supply support for TPS6209733RWKT 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 industrial and automotive power solutions.
The TPS62097 family was designed specifically for high-efficiency, noise-sensitive point-of-load regulation in industrial automation, data storage, and embedded control systems - emphasizing thermal resilience, flexible sequencing, and robust fault handling.
FAQ
What is the output voltage of the TPS6209733RWKT?
The TPS6209733RWKT has a fixed 3.3-V output voltage with ±1% accuracy over temperature and line/load conditions. Unlike adjustable versions, it does not require external feedback resistors - the 3.3-V setting is laser-trimmed at wafer test and verified per TI's production data. This simplifies layout and improves long-term stability for I/O and interface rail applications.
Does the TPS6209733RWKT support forced PWM mode?
Yes, the TPS6209733RWKT supports forced PWM mode via the MODE pin. When the MODE pin is left floating or pulled to AVIN through a resistor (e.g., 75 kΩ), the device operates exclusively in fixed-frequency PWM mode across all load conditions - eliminating frequency modulation artifacts critical for EMI-sensitive applications like motor drives and precision instrumentation.
What package type and dimensions does the TPS6209733RWKT use?
The TPS6209733RWKT uses the RWK package: an 11-pin VQFN with 2.0 mm × 2.0 mm body size, 0.4-mm lead pitch, and exposed thermal pad. Its compact footprint and low thermal resistance (RθJA = 83.4°C/W) enable high-power-density designs in space-constrained industrial modules and SSD controller boards.
How does the TPS6209733RWKT handle short-circuit conditions?
The TPS6209733RWKT employs hiccup short-circuit protection: upon detecting 32 consecutive current-limit events, it disables switching, discharges the output via the internal 165-Ω resistor, and auto-restarts after ~100 µs. This limits average fault current and prevents thermal runaway - a key reliability feature for unattended industrial equipment where sustained shorts may occur.
Can the TPS6209733RWKT be used with large output capacitors?
Yes, the TPS6209733RWKT's internally compensated control loop supports output capacitors exceeding 150 µF - including high-capacitance ceramic arrays - without external compensation. This enables low-impedance, low-noise 3.3-V rails for sensitive analog or high-speed digital loads, while maintaining stability across wide temperature and aging variations.
TPS6209733RWKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- iDCS-Control
- Package/Case:
- 11-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- Frequency - Switching:
- 1.5MHz ~ 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 11-VQFN-HR (2x2)
TPS6209733RWKT FAQ
1.How can I place an order for TPS6209733RWKT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS6209733RWKT 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 TPS6209733RWKT reliable?
The price and inventory of TPS6209733RWKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS6209733RWKT is usually 5 days.
3.What payment methods are accepted for TPS6209733RWKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS6209733RWKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS6209733RWKT?
TPS6209733RWKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS6209733RWKT 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 TPS6209733RWKT?
For technical support, including TPS6209733RWKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS6209733RWKT requirements.
6.How does Aetrix verify that TPS6209733RWKT is sourced from the original manufacturer or authorized distributors?
All TPS6209733RWKT 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 TPS6209733RWKT meets industry standards.
7.What is the process for return or replacement of TPS6209733RWKT?
All TPS6209733RWKT units undergo pre-shipment inspection (PSI). If there is an issue with TPS6209733RWKT, 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 TPS6209733RWKT part is unused and in its original packaging.
Return procedure for TPS6209733RWKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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