Texas Instruments TPS63060DSCT

Overview

TPS63060DSCT from Texas Instruments is a high-input-voltage synchronous buck-boost DC/DC converter optimized for dual-cell Li-ion battery systems, delivering up to 2 A output current in buck mode (VIN < 10 V) and 1.3 A in boost mode (VIN > 4 V), with fixed 2.4 MHz switching frequency and power-good signaling. It operates across 2.5 V–12 V input and supports adjustable 2.5 V–8 V output via external feedback divider.

For engineers reviewing the TPS63060DSCT datasheet, TPS63060DSCT pinout, TPS63060DSCT application, or TPS63060DSCT equivalent, key selection considerations include its automatic buck-boost transition logic, Buck-Boost Overlap Control™ architecture, load disconnect during shutdown, and thermal/overvoltage protection - all in a compact 3 mm × 3 mm WSON-10 package.

Technical Context

The TPS63060DSCT implements an average current-mode control topology using four internal N-channel MOSFETs, with one switch held on and one held off at all times to minimize switching losses. Its seamless buck-to-boost transition occurs when VIN crosses VOUT, avoiding discontinuous operation or dead-time instability.

It integrates dynamic current limiting tied to VIN (2.25 A typical at 5 V), programmable power-save mode (enabled by pulling PS/SYNC low), and synchronization capability via the PS/SYNC pin. The device uses a 500 mV internal reference and supports dynamic voltage positioning for transient headroom.

Key Specifications

Pinout & Package

TPS63060DSCT is housed in a 3 mm × 3 mm, 10-pin WSON (DSC) package with an exposed thermal pad that must be soldered to PGND for thermal performance and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS63061DSCT, the TPS63060DSCT offers design flexibility through adjustable output but requires two external resistors; compared with TPS63802DLAR, it trades programmability and current headroom for lower cost, simpler layout, and proven reliability in cost-sensitive portable applications.

Availability

TPS63060DSCT is available at Aetrix Electronics and suitable for dual-cell Li-ion portable devices, digital still cameras (DSC), industrial metering equipment, personal medical products, and high-power LED lighting requiring stable component supply and long-term production continuity.

Supply support for TPS63060DSCT 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 and battery-powered system solutions.

The TPS6306x product line was designed specifically for portable electronics requiring seamless voltage regulation across wide input ranges - targeting dual-cell Li-ion, multi-cell alkaline, and NiMH battery platforms where space, efficiency, and reliability are critical.

FAQ

What is the maximum output current capability of the TPS63060DSCT?

The TPS63060DSCT delivers up to 2 A output current in buck mode when input voltage is below 10 V, and up to 1.3 A in boost mode when input exceeds 4 V. These values reflect real-world performance under typical conditions with proper thermal management and recommended external components - not theoretical limits. Peak switch current is internally limited to 2.25 A average, and actual output depends on input voltage, output voltage, PCB layout, and ambient temperature.

Does the TPS63060DSCT require external feedback resistors to operate?

Yes, the TPS63060DSCT is the adjustable-output variant and requires an external resistor divider connected between VOUT, FB, and GND to set the desired output voltage within 2.5 V–8 V. The internal reference is 500 mV, so VOUT = 500 mV × (1 + R1/R2). In contrast, the pin-compatible TPS63061DSCT has a fixed 5 V output and ties FB directly to VOUT - no resistors needed. Omitting the divider on TPS63060DSCT results in undefined output behavior.

How does the TPS63060DSCT handle transitions between buck and boost modes?

The TPS63060DSCT uses proprietary Buck-Boost Overlap Control™ to ensure seamless, glitch-free transitions. It never operates all four internal MOSFETs simultaneously; instead, it maintains one switch permanently on and one permanently off while alternating active/rectifying roles between the remaining two. This architecture minimizes RMS current and conduction losses near VIN ≈ VOUT, avoids discontinuous conduction mode artifacts, and sustains >90% efficiency across the crossover region - verified in TI's published efficiency curves.

Can the TPS63060DSCT be synchronized to an external clock source?

Yes, the PS/SYNC pin supports external clock synchronization. When driven with a TTL/CMOS-compatible square wave between 2.2 MHz and 2.6 MHz, the internal PLL locks to the incoming signal - enabling deterministic switching timing for EMI reduction or multi-rail phase alignment. The device tolerates missing clock edges without malfunction. If synchronization is not required, PS/SYNC can be pulled low to enable power-save mode or high to force fixed-frequency PWM operation.

What thermal management provisions does the TPS63060DSCT include?

The TPS63060DSCT features overtemperature protection that disables switching when junction temperature reaches 140 °C, with 20 °C hysteresis for stable recovery. Its WSON-10 (DSC) package includes an exposed thermal pad that must be soldered to a dedicated PGND copper area - this reduces junction-to-board thermal resistance to 19.8 °C/W and enables reliable 2 A operation at +70 °C ambient with minimal heatsinking. Layout guidelines specify minimum thermal pad size and via count for optimal performance.