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Texas Instruments TPS62134DRGTR
- Part No.:
- TPS62134DRGTR
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS62134DRGTR.pdf
- Description:
- IC REG BUCK PROG 3.2A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:11,699
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Product details
Overview
TPS62134DRGTR 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 voltage at up to 3 A load, 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 TPS62134DRGTR datasheet, TPS62134DRGTR pinout, TPS62134DRGTR application, or TPS62134DRGTR equivalent, key selection considerations include its 3-mm × 3-mm VQFN-16 package with thermal pad, VID0/VID1/LPM-controlled output voltage selection, single-ended remote sense (FBS), and seamless PWM-to-PSM transition supporting high efficiency across 0.001–3 A load range.
Technical Context
The TPS62134DRGTR implements DCS-Control™ topology-combining fast transient response via AC-coupled voltage sensing with stable DC regulation through an internal error amplifier and compensated loop. Its control architecture enables immediate load-step response while maintaining ±1% output accuracy in PWM mode and ±3% in PSM mode (LPM = High).
It operates in two functional modes: fixed-frequency ~1 MHz PWM at medium/heavy loads (CCM), and frequency-scaled power-save mode (PSM) at light loads, where switching frequency decreases linearly with output current to sustain >85% efficiency down to 1 mA. Input undervoltage lockout (2.7 V typ.) and thermal shutdown (160 °C) ensure robust system-level protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports direct connection to 12-V rails or 1–4-cell Li-ion batteries without pre-regulation. |
| Output Voltage | 0.95 V (fixed) - configured by VID0=1, VID1=1, LPM=1 per Table 1; matches Intel Skylake VCC(IO) rail specification. |
| Max Output Current | 3.2 A (at VI ≥ 5 V) - sustained delivery with integrated 90 mΩ high-side and 40 mΩ low-side MOSFETs. |
| Quiescent Current | 20 µA (typ.) - enables >90% efficiency at 1 mA load, critical for standby power budgeting in portable systems. |
| Switching Frequency | ~1 MHz (PWM mode) - balances EMI, inductor size, and ceramic capacitor count; reduces to ~100 kHz at 10 mA in PSM. |
| Power-Good Threshold | 760 mV (rising), 720 mV (falling) - provides precise rail monitoring with 140 µs rise delay for reliable sequencing of downstream ICs. |
| Thermal Shutdown | 160 °C (typ.), 20 °C hysteresis - protects against sustained overload or poor PCB thermal design without latch-up. |
Pinout & Package
TPS62134DRGTR is housed in a thermally enhanced 3-mm × 3-mm VQFN-16 package with exposed thermal pad (RGT). The package supports high-current routing and efficient heat dissipation when soldered to a 4-layer PCB with dedicated thermal vias to internal ground planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOS | Output voltage sense | Direct connection point for feedback loop; must be routed to output capacitor's positive terminal to minimize trace impedance errors. |
| SW | Switch node | High dv/dt node connecting internal MOSFETs to external inductor; requires short, low-inductance layout to reduce EMI and ringing. |
| PG | Power-good open-drain output | Signals valid output voltage; requires external pullup (≤10 kΩ) to ≤6 V rail; used for rail sequencing and fault detection. |
| FBS | Remote sense input | Connects directly to load supply node to compensate for IR drop in PCB traces; improves load regulation to ±0.5% at point-of-load. |
| VID0 / VID1 / LPM | Digital voltage selection inputs | Set output voltage and enable low-power mode; internal 400 kΩ pulldown ensures defined state when floating. |
| EN | Enable input | Active-high logic control with internal pulldown; allows precise power-up timing and system-level shutdown coordination. |
| SS | Soft-start control | External capacitor sets ramp time (e.g., 1 nF → ~1.2 ms); prevents inrush current and supports monotonic startup into pre-biased rails. |
| AGND / PGND | Analog & power ground | Must be tied together and connected to exposed thermal pad; separates noise-sensitive analog circuitry from high-current return paths. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ architecture | Combines fast transient response (<5 µs to settle after 1-A load step) with stable DC regulation using internal compensation - eliminates need for external loop components. |
| Programmable low-power mode (LPM) | LPM pin reduces output to 0 V (TPS62134A/D) or 0.7 V (TPS62134B/D); maintains system sleep states while enabling rapid wake-up without full re-start. |
| Single-ended remote sense (FBS) | Compensates for up to 50 mΩ PCB trace resistance between regulator and load, ensuring ±0.5% regulation accuracy at point-of-load under varying current. |
| Integrated soft-start (SS) | Externally adjustable ramp time prevents inrush current spikes (>3 A peak) and avoids brownout on shared input rails during cold start. |
| Thermal and short-circuit protection | Auto-recovery thermal shutdown (160 °C) and reduced current limit (1.6 A) during short-circuit events protect both IC and external FETs without requiring external circuitry. |
Applications
| Intel Skylake VCC(IO) Rail | Solid-State Disk Drive Power |
|---|---|
|
Use Scenario: Powers I/O interface circuits (PCIe, SATA, USB) in Intel-based ultrabooks with strict voltage tolerance (±3%) and fast transient response requirements. IC Role / Device Role / Timing Role: Primary POL regulator delivering 0.95 V at up to 3 A with <5 µs transient recovery; sequenced via EN/PG pins alongside CPU core rails. Use Value: DCS-Control™ ensures <10 mV droop during 2-A load steps, meeting Intel VRD 13.0 spec for VCC(IO) stability without external compensation. |
Use Scenario: Supplies 0.95 V to NAND flash controller and DRAM buffer in enterprise SSDs operating from 12-V intermediate bus. IC Role / Device Role / Timing Role: High-efficiency buck converter with 20 µA quiescent current enabling <100 µW standby power consumption during idle periods. Use Value: Maintains >88% efficiency at 10 mA load, extending SSD sleep-mode battery life in portable storage enclosures. |
| Embedded System POL Supply | 12-V Intermediate Rail Converter |
|
Use Scenario: Provides regulated 0.95 V to FPGA I/O banks or ASIC auxiliary rails in industrial gateways with wide ambient temperature range (–40 °C to +125 °C). IC Role / Device Role / Timing Role: Robust point-of-load regulator with thermal shutdown, UVLO, and short-circuit protection - no external fault management required. Use Value: Junction-to-board thermal resistance of 16.6 °C/W enables full 3.2 A output in compact 3×3 mm footprint without heatsink, reducing BOM cost. |
Use Scenario: Steps down standard 12-V backplane supply to 0.95 V for high-speed SerDes interfaces in telecom line cards. IC Role / Device Role / Timing Role: Synchronous buck converter with 1-MHz switching frequency minimizing output ripple and easing EMI filtering requirements. Use Value: Achieves <15 mVpp output ripple with 22 µF + 47 µF ceramic output capacitance, eliminating need for bulk electrolytic capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62134ARGTR | Same package and pinout; differs only in output voltage configuration (0.85 V default via VID0=0, VID1=0, LPM=1). | Designed for Intel VCC(IO) rail with 0.85 V nominal; not suitable for 0.95 V systems without reconfiguring VID pins and verifying stability. | Select TPS62134ARGTR only if target system requires 0.85 V and supports identical VID mapping - verify loop stability with revised feedback divider. |
| TPS62135DRGTR | Pin-compatible upgrade with extended input range (3–18 V), lower IQ (15 µA), and improved thermal performance (RθJA = 38.5 °C/W). | Supports higher input voltages and delivers same 0.95 V output; recommended for new designs targeting longer product lifecycle and tighter thermal margins. | TPS62135DRGTR is a drop-in replacement with enhanced specs; use when upgrading legacy designs or designing for 18-V max input compliance. |
Compared with TPS62134DRGTR, TPS62134ARGTR offers identical functionality but different factory-set output voltage, requiring VID reconfiguration for 0.95 V operation; TPS62135DRGTR provides measurable improvements in quiescent current, thermal resistance, and input voltage margin - making it the preferred choice for new designs where long-term availability and margin are critical.
Availability
TPS62134DRGTR is available at Aetrix Electronics and suitable for Intel Skylake platform designs, solid-state disk drive power supplies, and embedded POL applications requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for TPS62134DRGTR 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 family was developed specifically for Intel Skylake platform voltage regulation requirements - delivering tightly regulated, low-noise, and highly efficient POL conversion for CPU I/O, core, and memory rails in ultrabooks and thin-and-light notebooks.
FAQ
What is the output voltage configuration of TPS62134DRGTR?
The TPS62134DRGTR is configured for 0.95 V output via VID0 = 1, VID1 = 1, and LPM = 1 per Table 1 in the datasheet. This matches the Intel Skylake VCC(IO) rail specification. Unlike TPS62134ARGTR (0.85 V) or TPS62134B (0.7 V LPM), the TPS62134DRGTR uses this specific VID combination to deliver stable 0.95 V without external resistor dividers.
Does TPS62134DRGTR support remote sensing, and how is it implemented?
Yes, TPS62134DRGTR supports single-ended remote sensing via the FBS pin. To implement it, connect the FBS trace directly to the load's supply node - not the output capacitor - to compensate for PCB trace resistance. This improves load regulation accuracy to ±0.5% at point-of-load, critical for high-current digital I/O rails where IR drop would otherwise cause functional failures.
What protection features does TPS62134DRGTR include?
The TPS62134DRGTR integrates undervoltage lockout (2.7 V threshold), thermal shutdown (160 °C with 20 °C hysteresis), short-circuit protection (reduced 1.6 A current limit when VO < 0.3 V), and output discharge via internal 20-kΩ resistor. These features operate autonomously without external components, ensuring robust operation in unattended embedded systems and consumer notebooks.
Can TPS62134DRGTR operate with a pre-biased output?
Yes, TPS62134DRGTR supports monotonic startup into a pre-biased output. During such startup, both internal MOSFETs remain off until the internal soft-start ramp exceeds the existing output voltage, preventing reverse current flow and ensuring controlled voltage ramp-up. This capability is essential for hot-swap and multi-rail sequencing applications where other rails may already be active.
What is the thermal performance of TPS62134DRGTR in a standard PCB layout?
In a typical 4-layer PCB with 2 oz copper, thermal vias under the exposed pad, and 1-in² copper area, TPS62134DRGTR achieves a junction-to-board thermal resistance (RθJB) of 16.6 °C/W. At 3.2 A output and 12 V input, this allows continuous operation up to +125 °C ambient without derating - verified per JEDEC JESD51-7 test conditions and documented in Section 7.4 of the datasheet.
TPS62134DRGTR 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):
- 1V
- 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)
TPS62134DRGTR FAQ
1.How can I place an order for TPS62134DRGTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62134DRGTR 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 TPS62134DRGTR reliable?
The price and inventory of TPS62134DRGTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62134DRGTR is usually 5 days.
3.What payment methods are accepted for TPS62134DRGTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62134DRGTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62134DRGTR?
TPS62134DRGTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62134DRGTR 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 TPS62134DRGTR?
For technical support, including TPS62134DRGTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62134DRGTR requirements.
6.How does Aetrix verify that TPS62134DRGTR is sourced from the original manufacturer or authorized distributors?
All TPS62134DRGTR 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 TPS62134DRGTR meets industry standards.
7.What is the process for return or replacement of TPS62134DRGTR?
All TPS62134DRGTR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62134DRGTR, 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 TPS62134DRGTR part is unused and in its original packaging.
Return procedure for TPS62134DRGTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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