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Texas Instruments TPS62140RGTT
- Part No.:
- TPS62140RGTT
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS62140RGTT.pdf
- Description:
- IC REG BUCK ADJ 2A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,343
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Product details
Overview
TPS62140RGTT from Texas Instruments is a synchronous step-down DC-DC converter optimized for high-power-density applications, delivering up to 2 A continuous output current across an input range of 3 V to 17 V, with adjustable output voltage from 0.9 V to 6 V and DCS-Control™ topology for fast transient response-used in POL supplies for embedded systems and solid-state drives.
For engineers reviewing the TPS62140RGTT datasheet, TPS62140RGTT pinout, TPS62140RGTT application, or TPS62140RGTT equivalent, key selection considerations include its 2.5 MHz (typ.) switching frequency, 17 µA quiescent current in power-save mode, 16-pin VQFN-3×3 mm package, and seamless PWM-to-power-save transition for wide-load-efficiency optimization.
Technical Context
The TPS62140RGTT implements DCS-Control™ topology, combining voltage-mode feedback with direct control of the output voltage ramp via an internal comparator and fixed-on-time circuitry-enabling stable regulation with small external components and low-ESR capacitors. It supports both continuous conduction mode (CCM) at nominal 2.5 MHz (FSW = low) and discontinuous conduction mode (DCM) in power-save mode with linear frequency scaling.
Functional modes include 100% duty-cycle operation for ultra-low dropout (e.g., Li-ion battery end-of-discharge), programmable soft-start/tracking via external capacitor on SS/TR, and open-drain power-good (PG) with high-impedance state during shutdown or UVLO-enabling precise sequencing and system-level fault monitoring without external logic.
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 without external pre-regulation. |
| Output Current | Up to 2 A continuous - sufficient for core logic rails in SSDs, mobile PCs, and microservers. |
| Switching Frequency | 2.5 MHz (typ., FSW = low) - enables use of sub-2.2 µH inductors and compact 3×3 mm layout. |
| Quiescent Current | 17 µA (typ., no load) - maintains high light-load efficiency in always-on subsystems. |
| Output Voltage Range | 0.9 V to 6 V (adjustable via FB divider) - covers I/O, core, and peripheral rail requirements across embedded and computing platforms. |
| Thermal Shutdown | 160°C (typ.), 20°C hysteresis - protects against sustained overload or poor PCB thermal design while enabling automatic recovery. |
| Power-Good Output | Open-drain PG with 92–98% rising threshold - provides reliable enable/sequencing signal for downstream ICs without additional supervision circuitry. |
Pinout & Package
TPS62140RGTT is housed in a thermally enhanced 16-pin VQFN package (RGT), 3.00 mm × 3.00 mm body size, with exposed thermal pad soldered to AGND/PGND for optimal power dissipation and EMI control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,2,3 SW | Switch node | Connects to internal high-/low-side MOSFETs; requires low-inductance path to inductor and output capacitor. |
| 4 PG | Power-good open-drain output | Signals VOUT regulation status; requires external pullup resistor (≤10 kΩ) to valid logic voltage ≤7 V. |
| 5 FB | Feedback input | Sets output voltage via resistive divider; referenced to AGND; accuracy ±1.6% over temp for TPS62140. |
| 6 AGND | Analog ground | Must be connected directly to exposed thermal pad and system ground plane to minimize noise coupling into control loop. |
| 7 FSW | Frequency select input | Low = 2.5 MHz (default), high = 1.25 MHz; internal 400-kΩ pulldown ensures safe default state. |
| 8 DEF | Output voltage scaling input | Low = nominal VOUT, high = VOUT +5%; internal pulldown enables margining without external bias. |
| 9 SS/TR | Soft-start/tracking input | External capacitor sets startup ramp time; also accepts external voltage for supply tracking in multi-rail systems. |
| 10 AVIN | Analog supply input | Provides bias for control circuitry; must tie to same source as PVIN for stable reference generation. |
| 11,12 PVIN | Power stage supply input | High-current path for MOSFET drivers; requires low-ESR bulk capacitance near pins 11/12 and thermal pad. |
| 13 EN | Enable input | Active-high; internal 400-kΩ pulldown ensures disable-on-power-up; supports rail sequencing when driven by other PG signals. |
| 14 VOS | Output voltage sense | Direct connection to output rail improves loop stability and load-transient response vs. remote sensing. |
| 15,16 PGND | Power ground | Carries high-frequency switch currents; must connect directly to exposed thermal pad and low-impedance ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Combines fast ac loop response (via direct output voltage sensing) with dc voltage feedback for <10 µs load transient recovery and stable regulation with ceramic capacitors ≥10 µF. |
| Seamless power-save mode | Automatically transitions from 2.5 MHz PWM to variable-frequency DCM below ~300 mA load-maintaining >85% efficiency down to 1 mA without audible noise or output voltage perturbation. |
| Programmable soft-start & tracking | SS/TR pin accepts 0.1–100 nF capacitor for 0.1–10 ms startup ramp; also accepts external voltage for monotonic tracking of master supply in multi-rail FPGA or SoC designs. |
| 100% duty-cycle operation | Enables regulation down to VIN ≈ VOUT + (IOUT × RDS(on)_HS + IOUT × R_L), extending battery runtime in portable devices operating near end-of-discharge. |
| Pin-selectable output voltage | DEF pin toggles output between nominal and +5%-supports dynamic voltage scaling and margin testing without hardware change or firmware update. |
Applications
| SSD Power Management | POL Supply for Embedded Systems |
|---|---|
Use Scenario: Powers NAND flash controller and DRAM cache in M.2 NVMe solid-state drives from 12-V or 5-V input rails. IC Role / Device Role / Timing Role: Primary buck regulator delivering tightly regulated 1.2 V/1.8 V/3.3 V at up to 2 A with <10 µs transient response to burst read/write loads. Use Value: DCS-Control™ ensures minimal output droop during 4-KB random writes, preserving data integrity without oversized bulk capacitance. |
Use Scenario: Generates core voltage for ARM-based industrial controllers or network processors from 12-V intermediate bus. IC Role / Device Role / Timing Role: High-density point-of-load converter with integrated soft-start and PG signaling for safe boot sequencing with FPGA or ASIC. Use Value: 17 µA quiescent current extends standby time in battery-backed gateways; 3×3 mm footprint saves board space in constrained enclosures. |
| LDO Replacement in Mobile PCs | Battery-Powered Camera Module |
Use Scenario: Replaces inefficient linear regulators powering image signal processors (ISPs) and memory interfaces in ultrabooks and tablets. IC Role / Device Role / Timing Role: Efficient step-down converter delivering 1.1 V @ 1.5 A with programmable tracking to match processor DVFS states. Use Value: Achieves >92% peak efficiency vs. ~50% for LDOs at 1.5 A, reducing thermal load and enabling fanless design. |
Use Scenario: Supplies 2.8 V and 1.8 V rails to CMOS image sensors and ISP in battery-operated action cameras and drones. IC Role / Device Role / Timing Role: Dual-rail capable converter (using multiple TPS62140RGTTs) with UVLO and thermal shutdown for robust operation under variable load and ambient conditions. Use Value: 100% duty-cycle mode sustains regulation until Li-ion cell drops to 3.0 V, maximizing usable battery capacity per charge cycle. |
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 mm VQFN 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 such as USB peripherals or sensor hubs where 2 A headroom is unnecessary. | Select TPS62130RGTR when cost sensitivity outweighs current headroom needs and 1.5 A suffices. |
| TPS62150ARGTR | Identical 2-A rating and pinout, but includes integrated 5-V LDO for auxiliary rail generation and different PG logic (active-low in shutdown). | Preferred for systems requiring dual-rail outputs (e.g., 3.3 V main + 5 V USB PHY) without discrete LDOs. | Choose TPS62150ARGTR if auxiliary 5-V rail generation and active-low PG sequencing are required. |
Compared with TPS62130RGTR, the TPS62140RGTT delivers 33% higher output current in identical footprint; versus TPS62150ARGTR, it offers simpler PG interface and lower BOM count where auxiliary LDO is not needed-making it optimal for single-rail, high-current POL designs.
Availability
TPS62140RGTT is available at Aetrix Electronics and suitable for solid-state drives, embedded systems, and mobile PCs requiring stable component supply, long-term production support, and consistent parametric performance across manufacturing lots.
Supply support for TPS62140RGTT 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 TPS6214x product line was designed specifically for high-power-density point-of-load applications in computing, storage, and portable electronics-emphasizing small solution size, fast transient response, and seamless light-load efficiency.
FAQ
What is the maximum output current capability of the TPS62140RGTT?
The TPS62140RGTT supports up to 2 A of continuous output current under recommended operating conditions (TJ ≤ 125°C, adequate PCB copper and thermal pad soldering). Peak current limit is typically 2.45 A at 12 V input, with reduced 1.6 A short-circuit protection below 0.5 V output. Derating applies above 85°C ambient or with insufficient thermal management.
Does the TPS62140RGTT require external compensation components?
No, the TPS62140RGTT uses internally compensated DCS-Control™ topology and operates stably with standard ceramic output capacitors (≥10 µF, low-ESR) and typical inductors (1–2.2 µH). No external compensation network is needed-reducing design complexity and bill-of-materials count compared to traditional voltage-mode controllers.
How does the TPS62140RGTT handle pre-biased outputs during startup?
The TPS62140RGTT 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 VOUT. This prevents reverse current flow and ensures controlled, non-destructive ramp-up-even with large output capacitance or shared rails.
What is the purpose of the VOS pin on the TPS62140RGTT?
The VOS (Voltage Output Sense) pin provides Kelvin connection to the output rail, feeding the control loop with a noise-immune voltage measurement. Connecting VOS directly to the load side of the output capacitor improves load regulation and transient response-especially critical in high-current, low-voltage applications like DDR memory supplies.
Can the TPS62140RGTT operate with input voltage below 3 V?
No-the absolute minimum input voltage is defined by the undervoltage lockout (UVLO) threshold of 2.7 V (typ.), with 200 mV hysteresis. Operation below 2.6 V causes shutdown; the device will not regulate or switch. For sub-3 V inputs, consider TI's TPS6286x family or alternative architectures such as boost-buck or LDO solutions.
TPS62140RGTT 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)
TPS62140RGTT FAQ
1.How can I place an order for TPS62140RGTT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62140RGTT 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 TPS62140RGTT reliable?
The price and inventory of TPS62140RGTT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62140RGTT is usually 5 days.
3.What payment methods are accepted for TPS62140RGTT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62140RGTT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62140RGTT?
TPS62140RGTT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62140RGTT 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 TPS62140RGTT?
For technical support, including TPS62140RGTT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62140RGTT requirements.
6.How does Aetrix verify that TPS62140RGTT is sourced from the original manufacturer or authorized distributors?
All TPS62140RGTT 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 TPS62140RGTT meets industry standards.
7.What is the process for return or replacement of TPS62140RGTT?
All TPS62140RGTT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62140RGTT, 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 TPS62140RGTT part is unused and in its original packaging.
Return procedure for TPS62140RGTT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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