Texas Instruments TPS62093RGTR

Overview

TPS62093RGTR from Texas Instruments is a 3-A synchronous step-down DC/DC converter with fixed 1.8 V output, DCS-Control™ topology, 2.5 V to 6 V input range, and 2.8 MHz/1.4 MHz selectable switching frequency - deployed in SSD power rails and processor core supplies where high efficiency and compact size are critical.

For engineers reviewing the TPS62093RGTR datasheet, TPS62093RGTR pinout, TPS62093RGTR application, or TPS62093RGTR equivalent, key selection factors include its 95% peak efficiency at 3 A, 20 µA quiescent current in power save mode, hiccup-mode short-circuit protection, adjustable softstart via SS pin, and QFN-16 (3 mm × 3 mm) thermally enhanced package with exposed AGND pad.

Technical Context

The TPS62093RGTR implements DCS-Control™ - a hybrid regulation architecture combining voltage-mode control stability with hysteretic-like transient response - enabling seamless PWM-to-power-save mode transition without output disturbance. It uses internal charge pump (CP/CN pins) to drive high-side FET with low R_DS(on) (50 mΩ) and supports 100% duty cycle for ultra-low dropout operation.

Its functional modes are governed by EN (enable), FREQ (2.8/1.4 MHz selection), PG (open-drain power good), and SS (softstart/tracking). Output discharge (200 Ω via VOS) and hiccup-mode overcurrent protection (32-cycle lockout) are integrated, with thermal shutdown at 150°C and UVLO at 2.2 V (200 mV hysteresis).

Key Specifications

Pinout & Package

TPS62093RGTR is housed in a 16-pin QFN package (3.0 mm × 3.0 mm, 0.4 mm pitch) with an exposed thermal pad connected to AGND - soldering this pad is mandatory for thermal reliability and EMI performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS62095RGTR, the TPS62093RGTR offers guaranteed 1.8 V accuracy without external components; compared with TPS62130ARGTR, it delivers superior light-load efficiency and smaller solution size at the cost of lower current headroom and narrower input range.

Availability

TPS62093RGTR is available at Aetrix Electronics and suitable for SSD power management, notebook system rails, and battery-powered instrumentation requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TPS62093RGTR 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-efficiency DC/DC conversion.

The TPS6209x product line was designed specifically for space-constrained, battery-powered applications demanding high efficiency across full load range - emphasizing small solution size, ultra-low quiescent current, and robust protection features.

FAQ

What is the recommended inductor value for TPS62093RGTR at 2.8 MHz operation?

The TPS62093RGTR datasheet specifies a 0.47 µH inductor for 2.8 MHz operation with 22 µF output capacitance. This value balances ripple current (≈30% of I_OUT), efficiency, and transient response. Using a 0.4 µH inductor - as shown in typical efficiency curves - is also valid and yields slightly higher peak efficiency at 3 A, though with marginally increased ripple.

Does TPS62093RGTR require external components for basic operation?

Yes, TPS62093RGTR requires five essential external components: input capacitor (≥10 µF), output capacitor (≥22 µF), power inductor (0.47 µH @ 2.8 MHz), charge pump capacitor (10 nF between CP/CN), and softstart capacitor (optional but recommended). The FB pin is internally connected for fixed 1.8 V output, eliminating the need for a resistor divider.

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

The PG pin of TPS62093RGTR is open-drain and remains low until V_OUT reaches 93% of 1.8 V (≈1.67 V), then transitions to high-impedance once regulation is achieved. It pulls low again during UVLO, thermal shutdown, or EN deactivation. A pull-up resistor (e.g., 100 kΩ to PVIN) is mandatory for proper logic-level monitoring.

Can TPS62093RGTR operate with only PVIN powered, or is AVIN mandatory?

AVIN is mandatory and must be supplied with ≥1.5 V independent of PVIN. AVIN powers the internal bandgap reference, error amplifier, and control logic. Omitting AVIN causes complete functional failure - even if PVIN is within 2.5–6 V - because the analog core remains unpowered. AVIN should be decoupled with a local 1 µF ceramic capacitor.

What is the purpose of the VOS pin on TPS62093RGTR, and how should it be connected?

The VOS pin on TPS62093RGTR serves two functions: (1) output voltage sensing for improved regulation accuracy under load, and (2) enabling the internal 200 Ω discharge path during shutdown. It must be connected directly to the output capacitor's positive terminal - not to the load - to ensure accurate feedback and reliable discharge behavior.