Texas Instruments TLV62080DSGR

Overview

TLV62080DSGR from Texas Instruments is a synchronous step-down DC-DC converter optimized for battery-powered portable devices and point-of-load regulation. It operates from 2.5 V to 6 V input, delivers up to 1.2 A output current, features DCS-Control™ architecture for fast transient response, and integrates power save mode for high light-load efficiency. Its 2-mm × 2-mm WSON-8 package with thermal pad supports compact, thermally robust designs in space-constrained applications.

For engineers reviewing the TLV62080DSGR datasheet, TLV62080DSGR pinout, TLV62080DSGR application, or TLV62080DSGR equivalent, key selection criteria include its 1.2-A rated output, 2-MHz nominal switching frequency, 0.45-V feedback reference voltage, 100% duty-cycle low-dropout capability, and open-drain power-good (PG) output with high-impedance state during shutdown.

Technical Context

The TLV62080DSGR implements DCS-Control™ topology-combining hysteretic and voltage-mode control-to achieve seamless transition between PWM (2 MHz) and power-save (PFM) modes without output disturbance. It uses internal compensation compatible with wide output capacitor values (e.g., 22 µF ceramic), enabling stable regulation across load transients.

Its functional block includes dual N-MOSFET power stage (120 mΩ high-side, 90 mΩ low-side R_DS(on)), 0.45-V precision feedback reference, undervoltage lockout (1.8–2.0 V threshold), thermal shutdown (150 °C), and active output discharge via SW terminal (1 kΩ typical). PG logic remains high-impedance when disabled or in UVLO/thermal shutdown.

Key Specifications

Pinout & Package

TLV62080DSGR is housed in an 8-terminal WSON package (2.00 mm × 2.00 mm) with exposed thermal pad soldered to GND for optimal thermal performance (θ_JA = 59.7 °C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV62080DSGR, TPS62080DSGR offers higher current headroom and better thermal metrics but sacrifices 2.5-V startup capability; TLV62084DSGR matches package and footprint but changes PG logic-neither is pin-compatible without validation of input range and power-good interface requirements.

Availability

TLV62080DSGR is available at Aetrix Electronics and suitable for battery-powered portable devices, point-of-load regulators, and solid-state drive (SSD) memory supplies requiring stable component supply and long-term production continuity.

Supply support for TLV62080DSGR 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 over 90 years of innovation in high-reliability electronic components.

The TLV62080DSGR belongs to TI's TLV6208x family of high-efficiency synchronous buck converters, designed specifically for space-constrained, battery-operated applications demanding wide input range, fast transient response, and ultra-low quiescent current.

FAQ

What is the minimum input voltage required for TLV62080DSGR to regulate a 1.2-V output at 1.2-A load?

The minimum input voltage depends on output voltage, load current, and MOSFET on-resistance. Using the datasheet equation V_IN,MIN = V_OUT + I_OUT,MAX × (R_DS(on) + R_L), with R_DS(on) = 120 mΩ (high-side) and typical inductor DCR of 30 mΩ, V_IN,MIN ≈ 1.2 V + 1.2 A × 0.15 Ω = 1.38 V. However, the device requires ≥2.5 V to operate-so TLV62080DSGR cannot regulate 1.2 V at full load below 2.5 V input. The 2.5-V minimum is absolute.

Does TLV62080DSGR support pre-biased output startup?

Yes, TLV62080DSGR supports start-up into a pre-biased output. When enabled, it begins switching from the existing output voltage level and ramps toward the target regulation voltage without forcing reverse current into the output capacitor. This prevents potential damage to downstream circuits and avoids large inrush currents that could destabilize shared supply rails.

What is the function of the VOS pin on TLV62080DSGR, and how should it be connected?

The VOS (voltage output sense) pin on TLV62080DSGR provides remote output voltage sensing to compensate for IR drop across PCB traces. It must be connected directly to the output capacitor's positive terminal-never to the FB divider node or SW node. Correct VOS routing improves load regulation accuracy to ±1% across full load range, especially critical in high-current or long-trace applications.

Can TLV62080DSGR be used without the PG (power good) pin?

Yes, TLV62080DSGR can be used without connecting the PG pin. The PG terminal is an open-drain output with high-impedance state during normal operation and shutdown; leaving it unconnected has no adverse effect on regulation or functionality. If unused, TI recommends floating the pin-no pull-up or pull-down resistor is required unless system-level sequencing demands it.

How does the power save mode in TLV62080DSGR differ from standard PFM mode in other buck converters?

TLV62080DSGR's power save mode uses DCS-Control™'s fixed-on-time architecture to seamlessly transition from PWM to PFM without output voltage disturbance or audible noise. Unlike conventional PFM controllers, it maintains the same control loop and compensation network-eliminating need for mode-change circuitry or external components-while achieving >85% efficiency at 100 µA load with 30 µA quiescent current.