Texas Instruments TPS62132RGTR

Overview

TPS62132RGTR from Texas Instruments is a 3-V to 17-V, 3-A synchronous step-down DC-DC converter in a 3-mm × 3-mm QFN-16 package, featuring DCS-Control™ topology, 3.3-V fixed output voltage, and power-good (open-drain) signaling. It delivers up to 3 A continuous output current with 17 µA typical quiescent current and supports seamless PWM-to-power-save mode transition for high efficiency across load ranges - deployed in solid-state drives and embedded POL supplies.

For engineers reviewing the TPS62132RGTR datasheet, TPS62132RGTR pinout, TPS62132RGTR application, or TPS62132RGTR equivalent, key selection criteria include its fixed 3.3-V output, 2.5-MHz nominal switching frequency, 100% duty-cycle capability down to VIN ≈ VOUT + 0.3 V, thermal shutdown at 160°C, and compatibility with low-ESR ceramic output capacitors in compact layouts.

Technical Context

The TPS62132RGTR implements DCS-Control™ - a hybrid regulation architecture combining fast AC response via direct output-voltage sensing with stable DC regulation through an internal error amplifier and compensated loop. This enables <2% output voltage deviation under ±1-A load transients while maintaining 2.5-MHz switching in PWM mode.

It integrates dual MOSFET power switches (90-mΩ high-side, 40-mΩ low-side at VIN ≥ 6 V), programmable soft-start via external capacitor on SS/TR, and pin-selectable 5% output voltage margining via DEF. Power sequencing is supported through EN control and open-drain PG with 92–98% rising threshold and 87–94% falling threshold relative to VOUT.

Key Specifications

Pinout & Package

TPS62132RGTR is housed in a 16-pin VQFN (RGT) package with 3.00 mm × 3.00 mm body size and exposed thermal pad. The package supports high-power density layout with low-inductance PGND/AGND connections and optimized thermal dissipation via soldered thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS62132RGTR, TPS62131RGTR offers identical reliability and layout compatibility but targets 1.8-V domains, while TPS62140RGTR trades fixed-output simplicity for adjustable regulation - both share the same thermal performance, protection features, and 2.5-MHz base frequency.

Availability

TPS62132RGTR is available at Aetrix Electronics and suitable for solid-state drives, embedded POL supplies, and ePOS terminals requiring stable component supply, long-term manufacturability, and automotive-grade reliability screening.

Supply support for TPS62132RGTR 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.

The TPS6213x family was designed for high-density, low-noise POL applications in space-constrained systems such as SSDs, mobile computing peripherals, and industrial edge devices - prioritizing efficiency across full load range and seamless transient response.

FAQ

What is the output voltage tolerance of the TPS62132RGTR under full load and temperature range?

The TPS62132RGTR delivers a fixed 3.3-V output with initial accuracy of ±1.8% (785.6–814.4 mV at FB pin) under PWM mode, VIN ≥ VOUT + 1 V. Over –40°C to 125°C junction temperature and full 3-A load, line/load regulation contributes <0.05%/A and <0.02%/V respectively - resulting in total output deviation within ±3% across operating conditions. This is verified per TI's SLVSAG7F datasheet Section 7.5.

Does the TPS62132RGTR require external compensation components?

No, the TPS62132RGTR does not require external compensation components. Its DCS-Control™ topology integrates internal compensation optimized for stability with standard 22-µF ceramic output capacitors and 1-µH inductors. The control loop is factory-tuned to maintain phase margin >45° and gain margin >6 dB across input voltage (3–17 V), output load (0–3 A), and temperature (–40°C to 125°C) - eliminating design iteration for most applications.

Can the TPS62132RGTR operate with a 5-V input and deliver full 3-A output current?

Yes, the TPS62132RGTR supports full 3-A output current at 5-V input. With RDS(on) of 90 mΩ (high-side) and 40 mΩ (low-side) at VIN ≥ 6 V - and slightly higher values at 5 V - thermal performance remains within limits: at 5-V/3.3-V/3-A, power dissipation is ~0.45 W, yielding <20°C junction rise above ambient in a standard 2-layer PCB with thermal pad soldered. Efficiency exceeds 90% per Figure 7-1 in the datasheet.

How does the power-good (PG) pin behave during startup and fault conditions?

The TPS62132RGTR's PG pin is open-drain and asserts high-impedance until VOUT reaches 92–98% of 3.3 V (rising threshold), then pulls low only if actively driven by external pullup. During UVLO (VIN < 2.6 V), thermal shutdown (TJ > 160°C), or EN = Low, PG returns to high-impedance - unlike TPS62130A which drives Low. This behavior enables safe multi-rail sequencing without unintended discharge paths.

Is the TPS62132RGTR pin-compatible with other members of the TPS6213x family?

Yes, the TPS62132RGTR is pin-compatible with all TPS6213x variants (TPS62130/30A/31/33) in the RGT package. Pin count, location, function, and thermal pad layout are identical. Differences are limited to internal feedback divider (fixed 3.3 V), DEF/PG logic mapping, and minor electrical specs - allowing drop-in substitution where output voltage and power-good polarity match system requirements.