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Texas Instruments TPS62140RGTR
- Part No.:
- TPS62140RGTR
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS62140RGTR.pdf
- Description:
- IC REG BUCK ADJ 2A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:24,421
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Product details
Overview
TPS62140RGTR from Texas Instruments is a synchronous step-down DC-DC converter optimized for high-power-density applications. It operates from 3 V to 17 V input, delivers up to 2 A continuous output current, supports adjustable output voltage from 0.9 V to 6 V, and features DCS-Control™ topology for fast transient response-used in POL supplies for embedded systems and solid-state drives.
For engineers reviewing the TPS62140RGTR datasheet, TPS62140RGTR pinout, TPS62140RGTR application, or TPS62140RGTR equivalent, key selection criteria include its 2.5 MHz (typ.) switching frequency, 17 µA quiescent current in power-save mode, 100% duty-cycle capability, integrated power-good output, and seamless PWM-to-power-save transition under light loads.
Technical Context
The TPS62140RGTR implements DCS-Control™ topology-a hybrid regulation scheme combining voltage-mode feedback with direct control of the output voltage ramp via a fast comparator, enabling stable operation with low-ESR capacitors and minimal external components. Its internal compensation eliminates need for external loop compensation networks.
It supports dual operating modes: fixed-frequency PWM (2.5 MHz or 1.25 MHz selectable via FSW pin) for medium/heavy loads, and variable-frequency power-save mode for light loads-transitioning seamlessly without output voltage disturbance. The device integrates undervoltage lockout (2.7 V threshold), thermal shutdown (160°C), short-circuit protection, and 100% duty-cycle operation for ultra-low dropout scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports single/multi-cell Li-ion batteries and standard 12-V intermediate rails |
| Output Current | Up to 2 A continuous - sufficient for core logic rails in embedded processors and SSD controllers |
| Output Voltage Range | 0.9 V to 6 V adjustable - enables precise regulation for I/O, memory, and core voltages |
| Quiescent Current | 17 µA typical - maintains high efficiency at light loads without external biasing |
| Switching Frequency | 2.5 MHz (typ.) - allows use of compact 1–2.2 µH inductors and reduces solution footprint |
| Power-Good Output | Open-drain PG with 92–98% rising threshold - enables reliable power sequencing and system monitoring |
| Thermal Shutdown | 160°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design |
Pinout & Package
TPS62140RGTR is housed in a 3 mm × 3 mm, 16-pin VQFN package (RGT) with exposed thermal pad for enhanced thermal performance and mechanical reliability. The package requires soldering the thermal pad to AGND, PGND, and common ground plane per TI layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,2,3 SW | Switch node | Connects to internal high/low-side MOSFETs; ties to inductor and output capacitor - critical for EMI and thermal path |
| 4 PG | Power-good output | Open-drain status signal indicating regulated output; requires external pullup resistor to ≤7 V |
| 5 FB | Voltage feedback input | Sets output voltage via external resistor divider; referenced to AGND for adjustable versions |
| 6 AGND | Analog ground | Reference for control circuitry; must connect directly to thermal pad and system ground plane |
| 7 FSW | Frequency select input | Low = ~2.5 MHz, High = ~1.25 MHz; internal pulldown ensures default high-frequency operation |
| 8 DEF | Output voltage scaling | Low = nominal VOUT, High = VOUT +5%; enables margining without hardware change |
| 9 SS/TR | Soft-start/tracking input | External capacitor sets startup ramp time; also accepts external voltage for rail tracking |
| 10 AVIN | Analog supply input | Powers control circuitry; connect to same source as PVIN for noise isolation |
| 11,12 PVIN | Power stage supply | High-current input for MOSFET drivers; separate from AVIN to reduce coupling |
| 13 EN | Enable input | Active-high; internal 400 kΩ pulldown ensures safe default-off state |
| 14 VOS | Output voltage sense | Direct connection to output for improved load regulation and remote sensing capability |
| 15,16 PGND | Power ground | Return path for high-current switching; must tie to thermal pad and system ground |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Combines fast transient response (via direct output voltage sensing) with stable DC regulation - eliminates need for external compensation |
| Seamless power-save mode | Automatic transition between PWM and variable-frequency light-load mode - no output glitch or external control required |
| Programmable soft start & tracking | Single external capacitor sets startup ramp; SS/TR pin accepts external voltage for synchronized multi-rail sequencing |
| 100% duty-cycle operation | Maintains regulation when VIN approaches VOUT - extends battery runtime in portable applications |
| Pin-selectable output voltage | DEF pin toggles output between nominal and +5% - supports voltage margining for validation without BOM change |
Applications
| Standard 12-V Rail Supplies | POL Supply from Li-ion Battery |
|---|---|
Use Scenario: Converting 12-V intermediate bus to 3.3-V or 5-V for peripheral ICs in industrial gateways and network switches. IC Role / Device Role / Timing Role: Primary buck regulator delivering stable, low-noise POL voltage with fast load-step response. Use Value: 2.5-MHz switching enables <3-mm inductors; DCS-Control ensures <1% output deviation during 1-A load transients. | Use Scenario: Powering FPGA I/O banks or microcontroller cores from 2S/3S Li-ion packs (6–12.6 V) in handheld test equipment. IC Role / Device Role / Timing Role: Efficient step-down converter supporting wide input range and 100% duty-cycle for end-of-battery-life operation. Use Value: 17-µA quiescent current extends standby time; thermal shutdown (160°C) prevents damage during enclosure overheating. |
| Solid-State Drives | Embedded Systems |
Use Scenario: Generating 1.8-V or 3.3-V VCC for NAND flash controllers and DRAM interfaces in M.2 SATA/NVMe SSDs. IC Role / Device Role / Timing Role: Compact, high-efficiency DC-DC converter placed near memory subsystem to minimize IR drop and noise coupling. Use Value: 3×3-mm QFN package fits tight board space; low output ripple (<10 mVpp) avoids data corruption in high-speed memory interfaces. | Use Scenario: Providing core voltage (e.g., 1.2 V) and I/O voltage (3.3 V) for ARM-based edge AI modules in smart sensors and PLCs. IC Role / Device Role / Timing Role: Dual-rail power management IC with programmable sequencing via EN/PG/SS/TR pins. Use Value: Power-good output enables safe boot sequencing; adjustable VOUT supports multiple SoC variants with one BOM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130RGTR | Same 3×3 QFN package, 3–17 V input, but rated for 1.5 A max output current and fixed 3.3-V or adjustable versions only | Limited to lower-current applications; lacks VOS pin and 100% duty-cycle mode | Choose when output current ≤1.5 A and VOS remote sensing is unnecessary |
| TPS62150ARGTR | Same family, 3–17 V input, 2-A rating, but includes integrated soft-start capacitor and fixed 1.8-V/3.3-V/5.0-V options - no adjustable version | No FB pin or external resistor divider; not suitable for dynamically configurable outputs | Prefer when fixed-output voltage suffices and simplified BOM (no external soft-start cap) is prioritized |
Compared with TPS62140RGTR, TPS62130RGTR offers lower cost and footprint for sub-1.5-A loads but sacrifices 100% duty-cycle operation and VOS sensing. TPS62150ARGTR simplifies design with integrated soft-start but removes output voltage flexibility - making TPS62140RGTR optimal for adjustable, high-accuracy, battery-sensitive applications.
Availability
TPS62140RGTR is available at Aetrix Electronics and suitable for embedded systems, solid-state drives, and portable industrial devices requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62140RGTR 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 DC-DC conversion solutions.
The TPS6214x product line was designed specifically for high-power-density point-of-load applications demanding fast transient response, ultra-low quiescent current, and seamless light-load efficiency - targeting SSDs, mobile computing, and battery-powered industrial systems.
FAQ
What is the maximum continuous output current supported by the TPS62140RGTR?
The TPS62140RGTR supports up to 2 A of continuous output current across its full operating temperature range (–40°C to 125°C junction), verified under recommended conditions with adequate PCB copper area and thermal pad soldering. Derating applies above 85°C ambient depending on layout; thermal metrics (RθJA = 45°C/W) confirm this rating assumes proper heatsinking via the exposed thermal pad.
Does the TPS62140RGTR require external compensation components?
No, the TPS62140RGTR does not require external compensation components. Its DCS-Control™ topology integrates internal compensation, enabling stable operation with small ceramic output capacitors (e.g., 22 µF) and low-ESR inductors. This eliminates loop compensation design effort and improves robustness across varying load and input conditions.
How does the TPS62140RGTR handle pre-biased outputs during startup?
TPS62140RGTR supports monotonic pre-biased start-up: when enabled into a pre-charged output, both MOSFETs remain off until the internal soft-start ramp exceeds the existing output voltage. During this phase, a reduced current limit (~1.6 A) applies. This prevents reverse current flow and ensures controlled, non-destructive startup - critical for hot-swap and multi-rail systems.
What is the function of the VOS pin on the TPS62140RGTR?
The VOS (Voltage Output Sense) pin on the TPS62140RGTR provides Kelvin connection for the output voltage feedback loop, enabling remote sensing to compensate for PCB trace IR drop. Connecting VOS directly to the load improves load regulation accuracy - especially important in high-current or long-trace applications where FB pin sensing alone would introduce error.
Can the TPS62140RGTR operate with input voltage equal to the output voltage?
Yes, the TPS62140RGTR supports 100% duty-cycle operation, allowing it to maintain regulation when input voltage drops to within ~15% above the output voltage (e.g., 3.3 V out from 3.8 V in). In this mode, the high-side MOSFET remains continuously on and the low-side FET is disabled - extending usable battery life in portable applications beyond conventional buck limitations.
TPS62140RGTR 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:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 0.9V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 2A
- 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)
TPS62140RGTR FAQ
1.How can I place an order for TPS62140RGTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62140RGTR 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 TPS62140RGTR reliable?
The price and inventory of TPS62140RGTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62140RGTR is usually 5 days.
3.What payment methods are accepted for TPS62140RGTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62140RGTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62140RGTR?
TPS62140RGTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62140RGTR 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 TPS62140RGTR?
For technical support, including TPS62140RGTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62140RGTR requirements.
6.How does Aetrix verify that TPS62140RGTR is sourced from the original manufacturer or authorized distributors?
All TPS62140RGTR 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 TPS62140RGTR meets industry standards.
7.What is the process for return or replacement of TPS62140RGTR?
All TPS62140RGTR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62140RGTR, 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 TPS62140RGTR part is unused and in its original packaging.
Return procedure for TPS62140RGTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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