Texas Instruments TLV62150ARGTT

Overview

TLV62150ARGTT from Texas Instruments is a synchronous step-down DC-DC converter optimized for high-power-density POL applications, featuring DCS-Control™ topology, 4 V to 17 V input range, 1-A continuous output current, adjustable 0.9 V to 5 V output voltage, and 2.5 MHz (or 1.25 MHz) switching frequency. It delivers stable 3.3 V/1 A power for mobile PC and camera subsystems.

For engineers reviewing the TLV62150ARGTT datasheet, TLV62150ARGTT pinout, TLV62150ARGTT application, or TLV62150ARGTT equivalent, key selection criteria include its seamless PWM-to-Power-Save mode transition, 19 µA quiescent current, open-drain Power Good output, 100% duty cycle capability, and 3×3 mm VQFN-16 package with integrated thermal pad.

Technical Context

The TLV62150ARGTT implements DCS-Control™-a hybrid regulation architecture combining fast AC response via direct output voltage sensing with a stable DC feedback loop. It uses internal ramp generation and comparator-based timing to achieve immediate transient response while maintaining tight DC regulation across line and load variations.

Its functional modes include PWM operation in CCM (2.5 MHz typical, FSW=Low), selectable 1.25 MHz mode (FSW=High), automatic Power Save Mode entry below light-load thresholds, 100% duty cycle operation near VIN ≈ VOUT, and integrated protection including undervoltage lockout (2.7 V threshold), thermal shutdown (160°C), and current limiting (1.7 A typical high-side limit).

Key Specifications

Pinout & Package

TLV62150ARGTT is housed in a thermally enhanced 3.00 mm × 3.00 mm VQFN-16 package (RGT) with an exposed thermal pad soldered to AGND/PGND for optimal power dissipation and EMI control.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV62150ARGTT, TLV62150AARGTT modifies only PG logic behavior for active discharge, while TPS62150ARGTR delivers measurable improvements in IQ, accuracy, and thermal resistance-making it a drop-in performance upgrade without layout changes.

Availability

TLV62150ARGTT is available at Aetrix Electronics and suitable for mobile PC, industrial IoT sensor nodes, Li-ion camera modules, and set-top box USB power delivery requiring stable component supply and long-term production support.

Supply support for TLV62150ARGTT 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 technologies, with decades of expertise in high-efficiency DC-DC conversion.

The TLV62150ARGTT belongs to TI's DCS-Control™ synchronous buck converter family, designed specifically for compact, high-transient-response point-of-load regulation in space-constrained portable and industrial electronics.

FAQ

What is the recommended inductor value for TLV62150ARGTT operating at 2.5 MHz?

For TLV62150ARGTT running at its default 2.5 MHz switching frequency (FSW=Low), Texas Instruments recommends a 1.0 µH to 2.2 µH shielded power inductor with saturation current ≥1.5 A. A 1.0 µH, 2.5 A saturation inductor (e.g., Coilcraft XAL5030-102MEB) delivers optimal transient response and minimal size. Larger values increase output ripple and reduce transient speed; smaller values risk peak current limit triggering under full load.

Does TLV62150ARGTT support pre-biased output startup?

Yes, TLV62150ARGTT supports monotonic pre-biased output startup. When enabled, the low-side MOSFET remains off until the internal soft-start ramp exceeds the pre-existing output voltage, preventing reverse current flow. This behavior is confirmed in the datasheet's Figure 32 and Section 8.3.2. TLV62150ARGTT achieves this without external circuitry, making it suitable for hot-swap and multi-rail sequencing applications.

How does the DEF pin affect output voltage accuracy in TLV62150ARGTT?

In TLV62150ARGTT, the DEF pin selects between two factory-trimmed reference voltages: DEF=Low yields nominal VREF = 800 mV (±2.5%), while DEF=High increases VREF to 840 mV (±2.5%), resulting in a +5% output voltage shift. This is not a gain adjustment-it's a discrete reference selection. Accuracy remains within ±2.5% of the selected nominal value, preserving regulation integrity across temperature and line/load conditions.

What is the maximum allowable voltage on the PG pin of TLV62150ARGTT?

The PG pin of TLV62150ARGTT is rated for a maximum voltage of 7 V, as specified in Section 7.1 Absolute Maximum Ratings. It must be pulled up to a voltage ≤7 V-commonly to VOUT or a dedicated bias rail-not to VIN. Exceeding 7 V risks permanent damage. The datasheet explicitly advises against connecting PG to VIN due to potential overvoltage during input transients or startup overshoot.

Can TLV62150ARGTT operate with input voltage below 4 V?

No, TLV62150ARGTT cannot operate reliably below 4 V. Its absolute minimum input voltage is 4 V per Recommended Operating Conditions (Section 7.3), and its undervoltage lockout (UVLO) activates at 2.7 V (with 200 mV hysteresis). Below 4 V, the device may fail to start or exhibit unstable regulation. For sub-4 V inputs, consider TI's TPS6208x or TPS6282x families, which support 2.5 V minimum input.