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Texas Instruments TPS62134ARGTT
- Part No.:
- TPS62134ARGTT
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS62134ARGTT.pdf
- Description:
- IC REG BUCK PROG 3.2A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:365
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Product details
Overview
TPS62134ARGTT from Texas Instruments is a synchronous step-down DC-DC converter optimized for Intel Skylake VCC(IO) rail applications, featuring DCS-Control™ architecture, 0.95 V fixed output at up to 3.2 A, 3–17 V input range, and 20 µA quiescent current in power-save mode. It integrates programmable soft start, power-good signaling, and low-power mode (LPM) logic for dynamic voltage scaling in ultrabooks and embedded systems.
For engineers reviewing the TPS62134ARGTT datasheet, TPS62134ARGTT pinout, TPS62134ARGTT application, or TPS62134ARGTT equivalent, key selection considerations include its VID/LPM-configurable output (0.85–0.975 V), 1 MHz nominal switching frequency with seamless PWM-to-PSM transition, thermal shutdown at 160 °C, and VQFN-16 (3 mm × 3 mm) package with exposed thermal pad.
Technical Context
The TPS62134ARGTT implements DCS-Control™ topology-combining hysteretic, voltage-mode, and current-mode control-to deliver fast transient response and high DC accuracy without external compensation. Its AC loop directly monitors output voltage changes via the VOS pin, enabling sub-30 ns load-step recovery while maintaining ±1% output accuracy in PWM mode.
It supports dual operating modes: fixed-frequency PWM (≈1 MHz) for medium/heavy loads and frequency-scaled power-save mode (PSM) for light loads, achieving >90% efficiency at 1 mA and sustaining >85% down to 10 mA. The LPM and VID0/VID1 pins enable hardware-controlled voltage reduction to 0 V during system standby, with PG pin blanking and latching behavior validated per Intel VR sequencing requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports single/dual-cell Li-ion, 12-V intermediate rails, and wide industrial input sources without external regulators. |
| Output Voltage | 0.95 V (fixed for TPS62134A) - set by VID0=1, VID1=1, LPM=1 per Table 1; enables direct compatibility with Intel VCC(IO) rail specification. |
| Max Output Current | 3.2 A - achievable at VI ≥ 5 V; sufficient for high-current I/O domain supplies in Skylake-based ultrabooks and SSDs. |
| Quiescent Current | 20 µA - measured at no load in PSM mode; enables multi-day battery runtime in always-on system standby states. |
| Switching Frequency | ≈1 MHz (PWM) - fixed nominal frequency with controlled variation vs. VI/VO; ensures predictable EMI profile and compact filter design with 1 µH inductor. |
| Thermal Shutdown | 160 °C (typical) - protects against sustained overload or poor PCB thermal design; 20 °C hysteresis ensures stable re-start after cooling. |
| Power-Good Threshold | 760 mV rising / 720 mV falling - precise DC threshold with 140 µs rise delay; enables reliable rail sequencing in multi-rail Intel platforms. |
Pinout & Package
TPS62134ARGTT is housed in a 3-mm × 3-mm, 16-pin VQFN package (RGT) with an exposed thermal pad for enhanced power dissipation and mechanical reliability. The package requires soldering of the thermal pad to AGND/PGND for optimal thermal performance (RθJC(bot) = 3.7 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOS | Output voltage sense | Direct connection point to output capacitor; closes control loop with minimal trace inductance for stability and accuracy. |
| SW | Switch node | High dv/dt node connecting internal MOSFETs to external inductor; requires short, low-inductance routing to minimize EMI and ringing. |
| PG | Open-drain power-good | Signals valid output voltage; requires external pullup ≤6 V; blanked for 500 µs on LPM exit to prevent false sequencing faults. |
| FBS | Remote sense input | Connects near load to compensate for PCB IR drop; improves load regulation to ±0.01%/A across full current range. |
| VID0 / VID1 | Output voltage select | Binary inputs defining 0.85–0.975 V outputs; internal 400 kΩ pulldown ensures defined state when unconnected. |
| LPM | Low-power mode control | Hardware-selectable voltage reduction or disable; sets output to 0 V when low, enabling deep system sleep with zero I/O rail leakage. |
| EN | Enable input | Active-high logic with internal 400 kΩ pulldown; allows precise power sequencing and smooth discharge via 20 kΩ internal resistor. |
| SS | Soft-start timing | Capacitor-programmable ramp rate; prevents inrush current into large output caps and avoids brownout on weak sources like batteries. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ architecture | Enables <30 ns transient response and ±1% DC accuracy without external compensation components or complex tuning. |
| Seamless PWM-to-PSM transition | Maintains >85% efficiency from 10 mA to 3.2 A without output voltage glitch or audible noise during mode switching. |
| Single-ended remote sense (FBS) | Compensates for up to 50 mΩ PCB trace resistance, ensuring ±0.5% regulation at the load under full 3.2 A current. |
| Programmable soft start (SS) | External capacitor sets monotonic startup slope; supports pre-biased output and eliminates need for external sequencers. |
| Integrated short-circuit protection | Reduces current limit to 1.6 A when VO < 0.3 V, preventing thermal runaway while allowing safe auto-recovery above 0.4 V. |
Applications
| Intel Skylake VCC(IO) Rail | Solid-State Disk Drive Power |
|---|---|
|
Use Scenario: Primary I/O domain supply in Intel Skylake-based ultrabooks and 2-in-1 notebooks requiring tight voltage tolerance and fast load transients during PCIe/NVMe activity. IC Role / Device Role / Timing Role: Main buck regulator delivering 0.95 V @ 3.2 A with DCS-Control™-driven sub-30 ns transient response and 140 µs PG assertion for BIOS handoff. Use Value: Meets Intel VRD 12.0 VCC(IO) slew rate and accuracy specs without external compensation, reducing BOM count by 3–5 passive components. |
Use Scenario: Core power rail for NVMe SSD controllers and NAND flash interfaces where efficiency at light load (<10 mA) impacts battery life in portable storage devices. IC Role / Device Role / Timing Role: High-efficiency POL converter operating in PSM below 50 mA, maintaining >90% efficiency at 1 mA while supporting 1 MHz burst-mode operation. Use Value: Extends SSD standby time by 40% versus conventional buck converters due to 20 µA quiescent current and seamless light-load mode transition. |
| 12-V Intermediate Rail Conversion | Embedded System POL Supply |
|
Use Scenario: Point-of-load conversion from standard 12-V backplane or adapter supply to 0.95 V for FPGA I/O banks or ASIC interface logic in industrial gateways. IC Role / Device Role / Timing Role: Robust buck converter with UVLO (2.7 V), thermal shutdown (160 °C), and short-circuit protection enabling operation in unregulated 12-V environments. Use Value: Eliminates need for upstream pre-regulator; supports full 3.2 A output across 3–17 V input with <1% line regulation (0.003%/V). |
Use Scenario: Low-noise, space-constrained power for ARM-based edge AI modules requiring stable 0.95 V at up to 2.5 A with minimal thermal footprint. IC Role / Device Role / Timing Role: Compact VQFN-16 solution with exposed thermal pad and RθJA = 44.2 °C/W, enabling 3.2 A operation at ≤65 °C ambient without forced air. Use Value: Reduces PCB area by 40% vs. SOIC-8 alternatives while delivering identical current capability and superior thermal performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62134BRGTT | Fixed 0.90 V output (VID0=1, VID1=1, LPM=1); supports full 3.2 A at 0.7 V in LPM mode. | Targeted for Intel VCC(PRIM_CORE) rail; not compatible with VCC(IO) voltage requirement. | Select only if redesigning for core rail use; requires VID pin remapping and validation against Intel VRD 12.0 core rail specs. |
| TPS62135ARGTT | Same pinout and package; adds spread-spectrum clocking and improved light-load efficiency (15 µA IQ). | Drop-in replacement for new designs requiring lower EMI; not qualified for legacy Skylake platforms. | Prefer for next-generation designs needing CISPR-22 Class B compliance; retains identical layout but requires firmware update for SS control. |
Compared with TPS62134ARGTT, TPS62134BRGTT delivers different output voltage targeting core rails-not I/O-and TPS62135ARGTT offers EMI reduction at the cost of qualification scope; neither is a pin-compatible drop-in for existing VCC(IO) implementations without system-level validation.
Availability
TPS62134ARGTT is available at Aetrix Electronics and suitable for Intel Skylake platform designs, solid-state disk drives, and 12-V intermediate rail conversion requiring stable component supply, long-term lifecycle support, and TI-qualified automotive-grade traceability.
Supply support for TPS62134ARGTT 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 over 50 years of innovation in high-reliability power conversion solutions.
The TPS62134x product line was designed specifically for Intel Skylake platform voltage regulation, delivering tightly regulated, low-noise, and highly efficient POL conversion for CPU I/O, core, and memory domains with hardware-managed power states.
FAQ
What is the output voltage configuration for TPS62134ARGTT?
The TPS62134ARGTT is the 'A' variant of the TPS62134x family and is configured for Intel VCC(IO) rail operation. With LPM = high, VID0 = high, and VID1 = high, it delivers a fixed 0.95 V output. This configuration is hard-coded in silicon and does not require external resistors. The TPS62134ARGTT datasheet Table 1 confirms this mapping, and the device cannot be reconfigured to other voltages without changing the part number.
Does TPS62134ARGTT support remote sensing, and how is it implemented?
Yes, TPS62134ARGTT supports single-ended remote sensing via the FBS pin. To implement it, connect the FBS trace directly to the load's power input node-separate from the main output capacitor-while referencing its ground return to AGND/PGND. This compensates for voltage drop across PCB traces, improving load regulation to ±0.01%/A. The TPS62134ARGTT datasheet Section 8.3.7 specifies that noise on the FBS trace must be minimized using a solid ground plane and avoiding parallel routing with noisy signals.
What is the thermal performance of TPS62134ARGTT in its VQFN-16 package?
TPS62134ARGTT in the RGT (VQFN-16) package has a junction-to-board thermal resistance (RθJB) of 16.6 °C/W and a junction-to-case (bottom) resistance (RθJC(bot)) of 3.7 °C/W when the exposed thermal pad is properly soldered to a 4-layer PCB with 1-in² copper pour. Its maximum operating junction temperature is 125 °C, and thermal shutdown activates at 160 °C (typical) with 20 °C hysteresis. These values are specified in the TPS62134ARGTT datasheet Section 7.4 and assume standard JEDEC 51-14 PCB layout guidelines.
How does the power-good (PG) signal behave during low-power mode (LPM) on TPS62134ARGTT?
During LPM activation, the PG pin of the TPS62134ARGTT enters high-impedance state and remains latched there until LPM is deasserted. Upon exiting LPM, the PG signal is blanked for 500 µs to allow the output voltage to stabilize before asserting high. However, if the output voltage is between 0.5 V and 0.75 V at LPM exit-as may occur with certain load/capacitance combinations-the blanking time may be skipped and PG may briefly go low. This behavior is documented in the TPS62134ARGTT datasheet Note under Section 8.3.6.
Is TPS62134ARGTT suitable for new Intel Kaby Lake or later platform designs?
No, TPS62134ARGTT is not recommended for new Kaby Lake or later Intel platform designs. The official TPS62134ARGTT datasheet explicitly states: "The TPS62134A and TPS62134C are not recommended for new Skylake or KabyLake, Intel designs. The TPS62134B or TPS62134D should be used in their place." These alternatives offer updated VID mappings and full qualification for newer VRD specifications, while maintaining pin-to-pin compatibility with the TPS62134ARGTT footprint.
TPS62134ARGTT 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:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 0.7V
- Voltage - Output (Max):
- 0.98V
- Current - Output:
- 3.2A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x3)
TPS62134ARGTT FAQ
1.How can I place an order for TPS62134ARGTT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62134ARGTT 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 TPS62134ARGTT reliable?
The price and inventory of TPS62134ARGTT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62134ARGTT is usually 5 days.
3.What payment methods are accepted for TPS62134ARGTT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62134ARGTT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62134ARGTT?
TPS62134ARGTT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62134ARGTT 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 TPS62134ARGTT?
For technical support, including TPS62134ARGTT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62134ARGTT requirements.
6.How does Aetrix verify that TPS62134ARGTT is sourced from the original manufacturer or authorized distributors?
All TPS62134ARGTT 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 TPS62134ARGTT meets industry standards.
7.What is the process for return or replacement of TPS62134ARGTT?
All TPS62134ARGTT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62134ARGTT, 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 TPS62134ARGTT part is unused and in its original packaging.
Return procedure for TPS62134ARGTT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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