Texas Instruments TPS54J061RPGR

Overview

TPS54J061RPGR from Texas Instruments is a synchronous step-down DC/DC converter delivering up to 6 A continuous output current, operating from 4 V to 16 V input (or 2.7 V with external VCC bias), featuring D-CAP3™ adaptive on-time control, 0.6 V ±1% reference voltage over –40°C to +125°C, and selectable switching frequencies of 600 kHz / 1100 kHz / 2200 kHz. It serves as a high-efficiency POL regulator in server and networking power rails.

For engineers reviewing the TPS54J061RPGR datasheet, TPS54J061RPGR pinout, TPS54J061RPGR application, or TPS54J061RPGR equivalent, key selection considerations include its 14-pin HotRod™ QFN package, integrated high- and low-side MOSFETs (R_DS(on) = 22 mΩ / 8.5 mΩ), programmable overcurrent limit via TRIP pin, open-drain PGOOD output, and support for all-ceramic output capacitors without external compensation.

Technical Context

The TPS54J061RPGR implements D-CAP3™ control using an internal ripple generation network that emulates inductor current for fast load-step response without requiring external phase compensation. Its adaptive on-time architecture maintains stable regulation across wide VIN–VOUT ratios and dynamically adjusts frequency during transients.

This device integrates a 3-V internal LDO powering analog circuitry and gate drivers, supports dual startup paths (internal LDO or external 3.3 V ±5% bias on VCC), and features split-rail operation with safe prebiased start-up, auto-skipping Eco-mode at light loads, and forced CCM mode selectable via MODE pin resistor.

Key Specifications

Pinout & Package

TPS54J061RPGR uses a 14-pin VQFN-HR (RPG) package with exposed thermal pad, 2 mm × 3 mm footprint, and 0.5 mm pitch. The package supports high-density layout and efficient bottom-side heat dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous buck converter applications.

Compared with TPS54J061RPGR, TPS546D24ARVFT adds digital configurability at the cost of increased complexity and board area, while MP2315GJ-Z trades D-CAP3™'s ceramic-capacitor simplicity and light-load Eco-mode for broader input range and lower unit cost in non-server applications.

Availability

TPS54J061RPGR is available at Aetrix Electronics and suitable for server point-of-load regulation, networking ASIC core supplies, and industrial PC power management requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TPS54J061RPGR 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 TPS54J061RPGR belongs to TI's D-CAP3™ synchronous buck converter product line, designed specifically for space-constrained, high-transient-response POL applications in datacenter, networking, and industrial computing systems.

FAQ

What input voltage range does the TPS54J061RPGR support with and without external VCC bias?

The TPS54J061RPGR supports 4 V to 16 V input when powered solely from VIN, and extends down to 2.7 V when an external 3.3 V ±5% bias is applied to the VCC pin. This dual-input capability allows flexible system-level power architecture design while maintaining full 6 A output capability across both ranges. The internal LDO enables seamless transition between bias modes without reconfiguration.

How is overcurrent protection configured on the TPS54J061RPGR?

Overcurrent protection on the TPS54J061RPGR is set via a resistor connected from the TRIP pin to AGND. Using the KOCL equation (IOCL ≈ 30000 / RTRIP), a 4.99 kΩ resistor yields a nominal 6 A valley-current limit. The device supports programmable thresholds from 5.1 A to 6.9 A, enabling precise matching to downstream load fault requirements without hardware changes.

Does the TPS54J061RPGR require external compensation components?

No, the TPS54J061RPGR does not require external compensation components due to its D-CAP3™ control architecture. The internal ripple generation network provides inherent loop stability with all-ceramic output capacitors, eliminating the need for external RC networks or type-II/type-III compensators. This reduces BOM count, layout complexity, and validation effort while maintaining robust transient response.

What are the thermal characteristics of the TPS54J061RPGR in its RPG package?

The TPS54J061RPGR in the 14-pin VQFN-HR (RPG) package delivers R_θJC(bot) = 16.2°C/W and R_θJA = 64°C/W (JEDEC standard). With proper PCB copper pour under the exposed thermal pad, junction-to-board resistance drops to 16.2°C/W, enabling reliable 6 A operation at +85°C ambient without forced airflow. Thermal shutdown activates at 155°C with 38°C hysteresis.

Can the TPS54J061RPGR support power sequencing with other rails?

Yes, the TPS54J061RPGR supports power sequencing via its SS/REFIN pin, which accepts an external voltage reference (0.5 V–1.2 V) to enable output voltage tracking. When an external ramp signal is applied before enable, the FB node follows it precisely, allowing coordinated startup with other regulators. Internal soft-start defaults to 1.5 ms but can be extended with an external capacitor.