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Texas Instruments TPS62133RGTT
- Part No.:
- TPS62133RGTT
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS62133RGTT.pdf
- Description:
- IC REG BUCK 5V 3A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:689
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Product details
Overview
TPS62133RGTT from Texas Instruments is a synchronous step-down DC-DC converter optimized for high-power-density POL applications, delivering up to 3 A continuous output current at a fixed 5.0 V output voltage, with input voltage support from 3 V to 17 V and DCS-Control™ topology for fast transient response and seamless PWM-to-power-save mode transition.
For engineers reviewing the TPS62133RGTT datasheet, TPS62133RGTT pinout, TPS62133RGTT application, or TPS62133RGTT equivalent, this device is selected for compact 12-V rail conversion, battery-powered embedded systems, and solid-state drive power supplies where low quiescent current (17 µA), programmable soft-start, and power-good signaling are critical design requirements.
Technical Context
The TPS62133RGTT implements DCS-Control™ topology-combining voltage-mode feedback with direct AC output sensing-to achieve tight DC regulation (±1.7% initial accuracy) and sub-10-µs load transient response. Its internal 2.5-MHz (or 1.25-MHz selectable) switching frequency enables use of small 1–2.2-µH inductors and low-ESR ceramic capacitors.
It operates across three functional modes: PWM mode for medium/heavy loads, power-save mode for light loads (with linear frequency scaling), and 100% duty-cycle mode below VIN ≈ 1.15×VOUT-enabling extended battery runtime. Protection includes thermal shutdown (160°C), undervoltage lockout (2.7 V ±200 mV), short-circuit current limiting (4.2 A typ.), and open-drain power-good signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports single/dual Li-ion batteries and standard 12-V intermediate rails without external pre-regulation. |
| Output Voltage | Fixed 5.0 V - eliminates external feedback resistors; ±1.7% initial accuracy ensures reliable USB-peripheral or FPGA I/O rail compliance. |
| Max Output Current | 3 A continuous - sustains full load under worst-case thermal conditions (RθJA = 45°C/W) with proper PCB copper and thermal pad soldering. |
| Quiescent Current | 17 µA typical - enables >1000-hour standby in always-on embedded systems powered from coin cells or energy-harvesting sources. |
| Switching Frequency | 2.5 MHz (FSW = Low) or 1.25 MHz (FSW = High) - trade-off between solution size (smaller inductor/capacitor) and efficiency/ripple performance. |
| Power-Good Output | Open-drain PG with 95% VOUT threshold - provides system-level sequencing control and fault indication without additional supervisor ICs. |
| Thermal Shutdown | 160°C with 20°C hysteresis - protects against sustained overload or poor heatsinking while enabling automatic recovery after cooling. |
Pinout & Package
TPS62133RGTT is housed in a thermally enhanced 3-mm × 3-mm VQFN-16 package (RGT) with an exposed thermal pad requiring connection to AGND, PGND, and PCB ground plane for optimal thermal performance and mechanical reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN (1,2,3) | Power Input (High-Side Switch Supply) | Connects directly to input source; multiple pins reduce trace resistance and improve current handling for 3-A operation. |
| SW (4,5,6) | Switch Node | Drives external inductor; requires low-inductance layout to minimize EMI and switching losses at 2.5 MHz. |
| PG (7) | Power-Good Output | Open-drain signal indicating VOUT ≥95% nominal; requires external pullup resistor (e.g., 10 kΩ to 5 V). |
| FB (8) | Feedback Input | Internally tied to fixed 5-V divider; connect to AGND per TI recommendation to optimize thermal performance. |
| AGND (9) | Analog Ground Reference | Must be connected to exposed thermal pad and common ground plane to stabilize control loop and reduce noise coupling. |
| FSW (10) | Frequency Select Input | Low = 2.5 MHz (default); High = 1.25 MHz; internal 400-kΩ pulldown ensures safe startup if left unconnected. |
| DEF (11) | Output Voltage Scaling Input | Low = 5.0 V nominal; High = 5.25 V (+5%); internal pulldown enables margining without external logic. |
| SS/TR (12) | Soft-Start / Tracking Input | Capacitor sets ramp time; supports monotonic start-up into pre-biased rails and voltage tracking with master supplies. |
| EN (13) | Enable Input | Active-high; internal 400-kΩ pulldown ensures default disable; enables precise power sequencing with other rails. |
| VOS (14) | Output Voltage Sense | Direct connection to output capacitor improves regulation accuracy by compensating for PCB trace IR drop. |
| PGND (15,16) | Power Ground Return | Separate from AGND but must share same low-impedance ground plane; dual pins reduce ground bounce at 3-A switching currents. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ Topology | Enables <10-µs load transient response and stable regulation with low-ESR ceramic output capacitors-no electrolytic or tantalum required. |
| Seamless Power-Save Mode Transition | Maintains >85% efficiency down to 1-mA load without output voltage glitch or audible noise-critical for always-on IoT sensors. |
| Programmable Soft-Start & Tracking | External capacitor sets controlled VOUT ramp rate; supports synchronized start-up with multi-rail FPGAs or processors using SS/TR as tracking input. |
| 100% Duty-Cycle Operation | Extends usable battery range by regulating down to VIN ≈ 5.75 V (for 5-V output), enabling longest runtime in Li-ion discharge tail-end. |
| Integrated Short-Circuit & Thermal Protection | Reduces system BOM by eliminating external current-sense resistors or discrete thermal monitors-fault recovery is fully autonomous. |
Applications
| Server Point-of-Load (POL) | Solid-State Drive (SSD) Power |
|---|---|
|
Use Scenario: Converting 12-V backplane supply to stable 5-V rail for SATA/NVMe controller ICs and NAND flash interface logic. IC Role / Device Role: Primary buck regulator delivering regulated 5-V at up to 3 A with tight ripple (<20 mVpp) and fast transient response to burst read/write loads. Use Value: Eliminates need for secondary LDOs; DCS-Control™ maintains regulation during 2-A load steps within 5 µs, preventing data corruption. |
Use Scenario: Powering 5-V PCIe SSD modules in thin client or edge gateway devices with limited board space and thermal headroom. IC Role / Device Role: Compact, thermally robust 3-A buck converter in 3-mm × 3-mm QFN, supporting hot-plug insertion and dynamic power management. Use Value: 17-µA quiescent current extends sleep-mode battery life; 100% duty-cycle mode sustains operation until battery drops to 5.75 V. |
| Embedded Industrial Controller | Mobile PC & Tablet Core Logic Rail |
|
Use Scenario: Generating 5-V logic supply for ARM-based PLCs or HMIs operating from wide-input 9–36-V DC industrial rails. IC Role / Device Role: Input-flexible buck converter accepting 3–17 V, with UVLO hysteresis and thermal shutdown ensuring robustness in unregulated environments. Use Value: Pin-selectable 5% voltage margining (via DEF pin) allows firmware-controlled voltage tuning for aging compensation or performance binning. |
Use Scenario: Replacing inefficient linear regulators on 5-V core logic rails in fanless tablets and 2-in-1 notebooks powered by single-cell Li-ion batteries. IC Role / Device Role: High-efficiency synchronous buck delivering 3-A peak current with minimal heat generation in thermally constrained chassis. Use Value: Seamless power-save mode maintains >90% efficiency at 10-mA standby, extending battery life without compromising wake-up latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62132RGTT | Fixed 3.3-V output; identical pinout, package, and feature set except FB internally tied to 3.3-V divider. | Used where 3.3-V logic rails dominate (e.g., microcontroller peripherals, sensors); not suitable for 5-V USB or legacy interfaces. | Select TPS62132RGTT only when system architecture mandates 3.3 V and no voltage margining is required. |
| TPS62140RGTT | Adjustable output (0.9–6 V) via external resistor divider; same 3-mm × 3-mm QFN-16 package and DCS-Control™ engine. | Required for designs needing programmable or dynamically reconfigured output voltages (e.g., FPGA core rails, multi-voltage SoCs). | Choose TPS62140RGTT when flexibility outweighs BOM simplicity; adds two resistors but enables one-footprint support for multiple VOUTs. |
Compared with TPS62133RGTT, TPS62132RGTT offers identical form-factor and protection features but targets 3.3-V systems, while TPS62140RGTT trades fixed-output simplicity for adjustable regulation-making it suitable for prototyping or multi-product platforms where voltage variants coexist.
Availability
TPS62133RGTT is available at Aetrix Electronics and suitable for server point-of-load (POL) supplies, solid-state drive (SSD) power, and embedded industrial controllers requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for TPS62133RGTT 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 and automotive-grade reliability.
The TPS6213x family was designed specifically for high-density, low-noise POL applications in servers, storage, and portable electronics-emphasizing small solution size, fast transient response, and seamless light-load efficiency.
FAQ
What is the output voltage of the TPS62133RGTT?
The TPS62133RGTT delivers a fixed 5.0-V output voltage with ±1.7% initial accuracy over temperature and line conditions. Unlike adjustable versions in the TPS6213x family, it uses an internal resistor divider-eliminating external feedback components and reducing solution footprint. This makes TPS62133RGTT ideal for applications requiring a stable, factory-trimmed 5-V rail such as USB peripheral interfaces or legacy logic supplies.
Does the TPS62133RGTT support power sequencing with other rails?
Yes, the TPS62133RGTT supports precise power sequencing through its EN (enable) and open-drain PG (power-good) pins. The EN pin accepts active-high logic to control startup timing, while PG asserts high-impedance when VOUT reaches 95% of nominal and pulls low during faults. When cascaded with other TI converters, TPS62133RGTT enables robust multi-rail sequencing-critical for FPGAs and processors requiring strict voltage ramp order and hold times.
Can the TPS62133RGTT operate from a single Li-ion battery?
Yes, the TPS62133RGTT operates from input voltages as low as 3 V, making it compatible with discharged single-cell Li-ion batteries (2.7–4.2 V). Its 100% duty-cycle mode sustains regulation down to VIN ≈ 5.75 V for 5-V output-extending usable runtime into the battery's discharge tail. Combined with 17-µA quiescent current, TPS62133RGTT enables efficient, long-duration operation in portable SSDs and handheld industrial tools.
What thermal considerations apply to the TPS62133RGTT in a 3-mm × 3-mm QFN package?
The TPS62133RGTT uses a thermally enhanced VQFN-16 (RGT) package with an exposed thermal pad that must be soldered to a minimum 100-mm² copper pour connected to AGND and PGND. With RθJA = 45°C/W, continuous 3-A operation requires adequate PCB copper area and airflow. TI recommends ≥2 thermal vias (0.3-mm diameter) under the pad, filled and plated, to maintain junction temperature below 125°C under worst-case ambient and load conditions.
How does the DCS-Control™ topology in the TPS62133RGTT improve transient response?
DCS-Control™ combines a fast AC comparator sensing output voltage ripple with a precision DC error amplifier-enabling sub-10-µs response to 2-A load steps while maintaining tight DC regulation. Unlike traditional voltage-mode control, it avoids phase-margin tuning and supports ceramic output capacitors exclusively. In TPS62133RGTT, this translates to stable 5-V output under dynamic SSD or processor workloads without external compensation components.
TPS62133RGTT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 16-VFQFN Exposed Pad
- 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):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 3A
- Frequency - Switching:
- 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x3)
TPS62133RGTT FAQ
1.How can I place an order for TPS62133RGTT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62133RGTT 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 TPS62133RGTT reliable?
The price and inventory of TPS62133RGTT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62133RGTT is usually 5 days.
3.What payment methods are accepted for TPS62133RGTT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62133RGTT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62133RGTT?
TPS62133RGTT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62133RGTT 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 TPS62133RGTT?
For technical support, including TPS62133RGTT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62133RGTT requirements.
6.How does Aetrix verify that TPS62133RGTT is sourced from the original manufacturer or authorized distributors?
All TPS62133RGTT 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 TPS62133RGTT meets industry standards.
7.What is the process for return or replacement of TPS62133RGTT?
All TPS62133RGTT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62133RGTT, 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 TPS62133RGTT part is unused and in its original packaging.
Return procedure for TPS62133RGTT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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