Texas Instruments TLV62084ADSGR

Overview

TLV62084ADSGR from Texas Instruments is a 2-A synchronous step-down DC-DC converter in a 2-mm × 2-mm WSON-8 package with thermal pad, supporting 2.7 V to 6 V input and delivering regulated output from 0.5 V to 4 V. It features DCS-Control™ architecture, 100% duty-cycle operation for low dropout, power-good (PG) open-drain output with active-low logic (TLV62084A variant), and integrated high-side/low-side MOSFETs with R_DS(on) of 120 mΩ / 90 mΩ. It is used in battery-powered portable devices requiring high light-load efficiency and fast transient response.

For engineers reviewing the TLV62084ADSGR datasheet, TLV62084ADSGR pinout, TLV62084ADSGR application, or TLV62084ADSGR equivalent, key selection considerations include its 2-A continuous output current capability, 2-MHz nominal switching frequency, power-save mode for sub-1-mA loads, output discharge function, and PG logic behavior specific to the TLV62084A revision.

Technical Context

The TLV62084ADSGR implements DCS-Control™ topology-combining voltage-mode and hysteretic control-to enable seamless PWM-to-PFM transition without output disturbance. It operates in fixed-frequency PWM mode at medium-to-heavy loads (2 MHz typical) and automatically shifts to variable-frequency power-save mode under light loads to maintain >85% efficiency down to 10 µA output current.

Its functional block includes integrated 120-mΩ high-side and 90-mΩ low-side N-MOSFETs, internal compensation supporting wide output capacitor ranges (e.g., 22 µF ceramic), 0.45-V feedback reference, and dedicated VOS pin for accurate remote output sensing. The PG pin asserts low when V_OUT falls below 90% of regulation and remains high-impedance during normal operation-distinct from TLV62084 (high-Z on shutdown) and TLV62080 (high-Z only during UVLO/shutdown).

Key Specifications

Pinout & Package

TLV62084ADSGR uses an 8-terminal WSON package (DSG) with 2.0 mm × 2.0 mm body and exposed thermal pad soldered to GND for thermal and mechanical reliability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV62084DSGR, TLV62084ADSGR provides guaranteed active-low PG behavior across all disable states-enabling simpler, more reliable power sequencing. Against TPS62084ADSGR, it trades minor efficiency and EMI advantages for lower cost and proven qualification in high-volume portable designs.

Availability

TLV62084ADSGR is available at Aetrix Electronics and suitable for battery-powered portable devices, point-of-load regulators, and solid state drive (SSD) supplies requiring stable component supply, long-term manufacturability, and TI-qualified automotive-grade variants.

Supply support for TLV62084ADSGR 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 headquartered in Dallas, Texas, specializing in analog, embedded processing, and power management ICs with over 50 years of innovation in energy-efficient power conversion.

The TLV6208x family was designed specifically for space-constrained, battery-operated applications demanding high efficiency across wide load ranges-from nanoamp sleep modes to multi-amp active states-without sacrificing transient performance or thermal robustness.

FAQ

What is the maximum continuous output current supported by TLV62084ADSGR?

The TLV62084ADSGR supports 2 A continuous output current under recommended operating conditions (T_J ≤ 125°C, proper PCB thermal design). This rating assumes use of the exposed thermal pad soldered to a ≥100-mm² GND copper area and 2-layer board with 2-oz copper. Derating applies above 85°C ambient; full 2-A capability is maintained up to 125°C junction temperature per datasheet Figure 7.

How does the power-good (PG) output of TLV62084ADSGR differ from TLV62084DSGR?

The TLV62084ADSGR features active-low PG logic: it pulls low during normal regulation failure *and* during all disable states (EN=LOW, UVLO, thermal shutdown). In contrast, TLV62084DSGR's PG goes high-impedance during those same disable events. This makes TLV62084ADSGR suitable for direct enable control of downstream converters without external logic inversion.

Does TLV62084ADSGR require an external compensation network?

No, TLV62084ADSGR uses internally compensated DCS-Control™ architecture and requires no external compensation components. Its stability is guaranteed with standard 22-µF ceramic output capacitors and 1-µH inductors. The VOS pin provides optional remote sensing to improve load regulation-no additional RC networks or type-II/III compensators are needed.

Can TLV62084ADSGR start up into a pre-biased output capacitor?

Yes, TLV62084ADSGR supports pre-biased start-up. When enabled with a non-zero V_OUT, it begins switching while monitoring the existing voltage and ramps toward the target V_OUT without forcing reverse current into the output capacitor. This prevents inrush damage and ensures safe hot-plug operation in multi-rail systems where other supplies may already be active.

What is the purpose of the VOS pin on TLV62084ADSGR?

TLV62084ADSGR's VOS (voltage output sense) pin connects directly to the output rail to provide remote feedback sensing. It compensates for voltage drop across PCB traces between the IC's FB pin and the actual load point-improving load regulation accuracy to ±1% across 0–2-A load steps, especially critical for low-voltage, high-current rails like DDR memory supplies.