Texas Instruments TPS54060ADGQR

Overview

TPS54060ADGQR from Texas Instruments is a 60-V, 0.5-A synchronous step-down DC–DC converter with integrated 200-mΩ high-side MOSFET, Eco-Mode™ pulse-skipping for light-load efficiency, 116-μA operating quiescent current, and adjustable 100-kHz to 2.5-MHz switching frequency - used in industrial 24-V/48-V power rails and automotive aftermarket GPS/video systems.

For engineers reviewing the TPS54060ADGQR datasheet, TPS54060ADGQR pinout, TPS54060ADGQR application, or TPS54060ADGQR equivalent, key selection considerations include input voltage range (3.5–60 V), UVLO adjustability via EN pin, PWRGD open-drain monitoring, BOOT-PH bootstrap operation, and VSON-10 thermal performance with PowerPAD™.

Technical Context

The TPS54060ADGQR implements constant-frequency peak-current-mode control with internal slope compensation to prevent subharmonic oscillation across full duty cycle range. Its error amplifier features 97-μA/V transconductance and compares VSENSE against either the 0.8-V internal reference or SS/TR tracking voltage.

It integrates a boot UVLO circuit that disables the high-side MOSFET when BOOT–PH falls below 2.1 V, enabling reliable 100% duty-cycle operation during dropout. The RT/CLK pin supports both resistor-set frequency tuning and external clock synchronization via PLL, with lock time under 100 μs at 500 kHz.

Key Specifications

Pinout & Package

VSON-10 (DGQR) package with 3.0 mm × 3.0 mm body and exposed thermal pad (Pin 11) - optimized for high-power-density PCB layouts and thermal dissipation (R_θJA = 40°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM5164QDDARQ1, TPS54060ADGQR offers lower quiescent current and integrated boot diode for simpler layout; compared with TPS54260DGQR, it delivers lower conduction loss at 0.5-A loads and better light-load efficiency, making it optimal for space-constrained, low-power industrial modules.

Availability

TPS54060ADGQR is available at Aetrix Electronics and suitable for industrial 24-V power rails, automotive aftermarket GPS/video systems, and low-power IoT sensor nodes requiring stable component supply and long-term manufacturability.

Supply support for TPS54060ADGQR 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 broad industrial and automotive design expertise.

The TPS54060A product line delivers high-voltage, low-quiescent-current buck regulators for harsh-input environments - designed specifically for 12-V, 24-V, and 48-V industrial and automotive auxiliary power systems.

FAQ

What is the minimum input voltage required for TPS54060ADGQR to start switching?

The TPS54060ADGQR has an internal undervoltage lockout threshold of 2.5 V, but this can be increased using external resistors on the EN pin. With EN floating, startup occurs when VIN rises above 2.5 V. For applications requiring higher start voltage - such as 12-V systems with cold-crank immunity - the EN pin allows adjustment of both threshold and hysteresis. The TPS54060ADGQR will not switch until VIN exceeds the configured UVLO level, ensuring reliable operation under brownout conditions.

How does the BOOT–PH UVLO function in TPS54060ADGQR?

The TPS54060ADGQR monitors the BOOT–PH voltage and disables the high-side MOSFET when it falls below 2.1 V. This prevents gate underdrive and ensures reliable switching during high-duty-cycle or dropout conditions. When disabled, the low-side path (external diode or synchronous rectifier) recharges the BOOT capacitor. This feature enables true 100% duty cycle operation and improves dropout performance - a key advantage of the TPS54060ADGQR in wide-input industrial supplies.

Can TPS54060ADGQR synchronize to an external clock, and how is it configured?

Yes, the TPS54060ADGQR supports external clock synchronization via the RT/CLK pin. When pulled above 2.2 V, the internal resistor-set amplifier disables and the pin becomes a high-impedance clock input to the internal PLL. Clock edges must meet minimum pulse width (40 ns) and frequency range (300–2200 kHz). The PLL achieves lock within 100 μs at 500 kHz. This capability allows TPS54060ADGQR to eliminate beat frequencies in multi-rail systems - a critical feature in noise-sensitive applications like automotive infotainment.

What is the role of the SS/TR pin in TPS54060ADGQR, and how is it used for power sequencing?

The SS/TR pin in TPS54060ADGQR serves dual functions: slow-start timing control and voltage tracking. Connecting a capacitor sets output ramp time; connecting a resistor divider from another supply enables tracking-based sequencing. During startup, the SS/TR pin voltage overrides the internal 0.8-V reference, allowing the output to follow a master rail. The TPS54060ADGQR also discharges this pin during overload or thermal shutdown, ensuring repeatable restart behavior - essential for robust industrial power systems.

Does TPS54060ADGQR provide overvoltage protection, and how does it respond to an OV event?

Yes, the TPS54060ADGQR includes overvoltage protection via its PWRGD comparator. When VSENSE exceeds 109% of nominal, the OV comparator activates and forces the high-side MOSFET off until VSENSE drops below 107%. This prevents sustained overvoltage at the output - protecting downstream logic and interface ICs. The PWRGD pin asserts low during OV, providing system-level fault signaling. Unlike basic regulators, the TPS54060ADGQR actively masks switching during OV, making it suitable for mission-critical 24-V industrial controllers.