Texas Instruments TPS62134ARGTR

Overview

TPS62134ARGTR 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.

For engineers reviewing the TPS62134ARGTR datasheet, TPS62134ARGTR pinout, TPS62134ARGTR application, or TPS62134ARGTR equivalent, key selection criteria include LPM-enabled voltage scaling, single-ended remote sense (FBS), programmable soft-start, power-good timing (140 µs rise delay), and thermal shutdown at 160 °C.

Technical Context

The TPS62134ARGTR implements DCS-Control™ topology-combining fast transient response via direct output-voltage sensing with seamless PWM-to-power-save mode transition. It supports dynamic voltage scaling via VID0/VID1 pins and low-power mode (LPM) logic to reduce output voltage during system standby.

Its control loop uses internal ramp generation, error amplification, and comparator-based regulation to maintain ±1% output accuracy in PWM mode and ±3% in PSM mode (LPM = high), with line regulation of 0.003%/V and load regulation of 0.01%/A over full operating conditions.

Key Specifications

Pinout & Package

TPS62134ARGTR is housed in a thermally enhanced 3-mm × 3-mm VQFN-16 package with exposed thermal pad, supporting high-density layout and efficient heat dissipation in space-constrained notebooks and SSDs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar step-down converter applications.

Compared with TPS62134ARGTR, TPS62134BRGTR offers higher LPM current capability at lower voltage but requires VID reconfiguration, while TPS62135ARGTR provides EMI reduction and lower IQ but lacks Skylake-specific qualification-making TPS62134ARGTR the validated choice for existing VCC(IO) implementations.

Availability

TPS62134ARGTR is available at Aetrix Electronics and suitable for Intel Skylake platform designs, solid-state disk drives, and battery-powered embedded systems requiring stable component supply and long-term production support.

Supply support for TPS62134ARGTR 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 solutions, with decades of expertise in high-efficiency DC-DC conversion.

The TPS62134x product line was designed specifically for Intel Skylake ultrabook and notebook platforms, delivering tightly regulated, low-noise, and dynamically scalable power to CPU I/O, core, and memory rails.

FAQ

What output voltage does TPS62134ARGTR deliver, and how is it set?

TPS62134ARGTR delivers a fixed 0.95 V output for the VCC(IO) rail, configured by asserting VID0 = high, VID1 = high, and LPM = high per Table 1 in the datasheet. This setting is factory-trimmed and does not require external resistors-ensuring consistent performance across production units without calibration.

Does TPS62134ARGTR support pre-biased output startup?

Yes, TPS62134ARGTR supports monotonic pre-biased startup: both MOSFETs remain off until the internal soft-start ramp exceeds the pre-bias voltage at the VOS pin. This prevents reverse current flow and ensures safe hot-plug operation in SSDs and modular systems where the output may be powered before the IC enables.

How does the LPM pin affect power-good (PG) behavior in TPS62134ARGTR?

When LPM is asserted low, the PG pin enters high-impedance state and remains inactive. Upon exiting LPM, TPS62134ARGTR applies a 500-µs blanking time before re-enabling PG-ensuring the output has settled to 0.95 V before signaling readiness. Note: For TPS62134ARGTR, brief PG glitches may occur if exit occurs while VO is between 0.5–0.75 V.

What is the maximum recommended PCB copper area for the thermal pad of TPS62134ARGTR?

TI recommends connecting the exposed thermal pad of TPS62134ARGTR to a minimum 100 mm² (10 mm × 10 mm) copper area on the bottom layer using ≥4 thermal vias (0.3 mm diameter). This achieves the rated RθJB of 16.6 °C/W and supports continuous 3.2-A operation at ambient temperatures up to 85 °C with 2-layer 1-oz copper.

Can TPS62134ARGTR operate with ceramic output capacitors only?

Yes, TPS62134ARGTR is fully compatible with ceramic-only output filters: the DCS-Control™ loop is internally compensated for low-ESR ceramics. The typical application uses 22 µF (C1) and 47 µF (C2) X5R/X7R MLCCs-no electrolytic or tantalum capacitors are required, reducing board area and improving reliability.