Texas Instruments TPS62150ARGTT

Overview

TPS62150ARGTT from Texas Instruments is a synchronous step-down DC-DC converter optimized for high-power-density applications. It delivers up to 1-A continuous output current across an input voltage range of 3 V to 17 V, supports adjustable output voltages from 0.9 V to 6 V, features DCS-Control™ topology for fast transient response, and operates in a thermally enhanced 3-mm × 3-mm VQFN-16 (RGT) package. It is used in POL supplies for Li-ion battery-powered embedded systems and solid-state drives.

For engineers reviewing the TPS62150ARGTT datasheet, TPS62150ARGTT pinout, TPS62150ARGTT application, or TPS62150ARGTT equivalent, key selection criteria include its 2.5-MHz nominal switching frequency, 17-µA quiescent current in power-save mode, seamless PWM-to-PSM transition, 100% duty-cycle capability, and integrated power-good output with open-drain logic.

Technical Context

The TPS62150ARGTT implements DCS-Control™ topology - a hybrid regulation scheme combining voltage-mode and hysteretic control with direct ac loop feedback to the comparator - enabling stable operation with small external components and low-ESR capacitors. It supports both PWM mode (2.5 MHz or 1.25 MHz selectable via FSW pin) and automatic power-save mode at light loads, with seamless mode transitions preserving output regulation.

Its functional architecture includes integrated high-side (90 mΩ typical @ VIN ≥ 6 V) and low-side MOSFETs, programmable soft-start/tracking via SS/TR pin, pin-selectable ±5% output voltage scaling via DEF pin, and thermal shutdown at 160°C with 20°C hysteresis. The device enters 100% duty-cycle mode when VIN approaches VOUT, maintaining regulation down to VIN ≈ VOUT + IOUT × RDS(on)_HS + IOUT × RL.

Key Specifications

Pinout & Package

The TPS62150ARGTT is housed in a 3-mm × 3-mm, 16-pin VQFN package (RGT) with an exposed thermal pad soldered to AGND/PGND for optimal thermal performance and mechanical reliability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS62150ARGTT, TPS62130ARGTR offers higher current but larger solution size due to increased thermal demands, while TPS62140ARGTR provides marginal current/efficiency gains at the cost of altered PG behavior and tighter layout sensitivity - making TPS62150ARGTT optimal for 1-A, space-constrained, and sequencing-critical designs.

Availability

TPS62150ARGTT is available at Aetrix Electronics and suitable for solid-state drives, embedded systems, and mobile computing applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TPS62150ARGTT 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 company specializing in analog, embedded processing, and power management technologies, with leadership in high-efficiency DC-DC conversion and automotive-grade reliability.

The TPS6215x product line was designed specifically for high-power-density point-of-load regulation in space-constrained, battery-sensitive, and thermally demanding applications - including SSDs, portable instrumentation, and industrial edge nodes.

FAQ

What is the maximum output current supported by the TPS62150ARGTT?

The TPS62150ARGTT supports up to 1-A continuous output current under recommended operating conditions (TJ ≤ 125°C, proper thermal layout). Its internal current limit is specified from 1.4 A to 2.2 A depending on input voltage and temperature, but sustained operation above 1 A may trigger thermal shutdown without adequate PCB copper and airflow. Derating is advised above 85°C ambient.

Does the TPS62150ARGTT support 100% duty-cycle operation, and what is its minimum input voltage for regulation?

Yes, the TPS62150ARGTT supports 100% duty-cycle operation to maintain regulation when input voltage approaches output voltage. Minimum input voltage is calculated as VIN(min) = VOUT + IOUT × (RDS(on)_HS + RL); for example, with VOUT = 3.3 V, IOUT = 1 A, RDS(on)_HS = 90 mΩ, and RL = 30 mΩ, VIN(min) ≈ 3.42 V - enabling extended runtime from aging Li-ion cells.

How does the power-good (PG) output behave during enable/disable and fault conditions on the TPS62150ARGTT?

On the TPS62150ARGTT, the PG pin is high-impedance when disabled (EN = low), in UVLO (VIN < 2.6 V), or during thermal shutdown. It asserts high (open-drain pulled up externally) when VFB ≥ 92% of target VOUT and remains high until VFB falls below 87%. This behavior enables safe multi-rail sequencing and avoids false triggers during brown-out recovery.

Can the TPS62150ARGTT be used to replace an LDO in a noise-sensitive application?

Yes, the TPS62150ARGTT can replace an LDO where efficiency and thermal constraints dominate - especially at >100-mA loads. Its DCS-Control™ topology delivers <10 mVpp output ripple and fast transient response, but requires careful layout (ground separation, input/output capacitor placement) to match LDO-level noise performance. For RF sections, add a ferrite-bead + ceramic filter post-regulator.

What are the key differences between the TPS62150ARGTT and the TPS62150A variant?

The TPS62150ARGTT and TPS62150A share identical electrical specs and pinout, but differ in PG logic: TPS62150ARGTT's PG is high-impedance during shutdown/UVLO, while TPS62150A actively pulls PG low in those states to discharge the output. This makes TPS62150A preferable for systems requiring active VOUT discharge, whereas TPS62150ARGTT suits simpler sequencing where high-Z is acceptable.