Texas Instruments TPS630241YFFT

Overview

TPS630241YFFT from Texas Instruments is a fixed-output 2.9 V, high-efficiency synchronous buck-boost DC/DC converter in a 20-pin WCSP (1.766 mm × 2.086 mm) package. It operates across 2.3 V–5.5 V input, delivers up to 1.5 A continuous output current in boost mode, achieves up to 95% efficiency in buck or boost, and features 2.5 MHz switching frequency with 35 µA quiescent current - ideal for space-constrained battery-powered mobile devices.

For engineers reviewing the TPS630241YFFT datasheet, TPS630241YFFT pinout, TPS630241YFFT application, or TPS630241YFFT equivalent, key selection considerations include its fixed 2.9 V output, seamless buck-boost transition, integrated soft-start, true shutdown with output discharge, and thermal/overcurrent protection - all critical for portable power rail design.

Technical Context

The TPS630241YFFT implements a fixed-frequency average current-mode control architecture using four internal N-channel MOSFETs. It automatically selects buck or boost topology based on VIN vs. VOUT, maintaining regulation without discontinuity - one switch remains on and one off at all times to minimize switching losses.

Its dual-supply interface separates power (VIN, PGND) and control (VINA, GND) domains to suppress ground bounce. The PFM/PWM pin enables user-selectable light-load operation: forced PWM (2.5 MHz) or automatic Power Save Mode with dynamic voltage positioning (1.3% over-regulation) and ≤30 mV_pk-pk ripple at 20 µF output capacitance.

Key Specifications

Pinout & Package

TPS630241YFFT uses a 20-pin Wafer Chip Scale Package (WCSP) with 0.4 mm pitch, nominal body size 1.766 mm × 2.086 mm. Thermal performance is characterized by R_θJA = 53.8 °C/W and R_θJB = 10.1 °C/W, requiring careful PCB copper pour under the exposed die pad for optimal heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS630242YFFT, the TPS630241YFFT provides a lower fixed output optimized for newer low-voltage SoCs, while MAX77827BEWL+T trades fixed-voltage simplicity for programmability and communication - making TPS630241YFFT the preferred choice for cost-sensitive, space-constrained 2.9 V rail generation.

Availability

TPS630241YFFT is available at Aetrix Electronics and suitable for smartphone baseband power, wearable sensor hub rails, tablet display bias supplies, and industrial handheld PMIC cores requiring stable component supply across high-volume production cycles.

Supply support for TPS630241YFFT 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 for portable electronics.

The TPS63024x family was designed specifically for battery-powered mobile devices requiring seamless voltage regulation across wide input ranges - targeting smartphones, tablets, and wearables where size, efficiency, and reliability are non-negotiable.

FAQ

What is the output voltage tolerance of the TPS630241YFFT under varying load and temperature conditions?

The TPS630241YFFT delivers a fixed 2.9 V output with ±1% accuracy in PWM mode and ±1.3% in PFM mode across –40°C to 85°C ambient and 0–1.5 A load. Load regulation is 2.5 mV/A and line regulation is 7.4 mV/V, ensuring stable rail performance even during rapid battery voltage sag or load transients - critical for consistent operation of 2.9 V logic in the TPS630241YFFT's target applications.

Does the TPS630241YFFT require external feedback resistors to set its output voltage?

No, the TPS630241YFFT does not require external feedback resistors. Its 2.9 V output is internally fixed, and the FB pin (A4) is internally connected to VOUT. This eliminates resistor tolerance errors, saves PCB space, and simplifies layout - a key differentiator from adjustable variants like TPS63024 or TPS630242YFFT, where external dividers are mandatory.

How does the TPS630241YFFT handle the transition between buck and boost modes?

The TPS630241YFFT uses an average current-mode controller with real-time VIN–VOUT comparison to automatically and seamlessly switch between buck and boost topologies. No output voltage discontinuity occurs - the device maintains regulation through the crossover region by alternating buck and boost cycles, limiting consecutive same-mode cycles to three. This behavior is intrinsic to the TPS630241YFFT's architecture and requires no external configuration.

What thermal management guidance applies to the TPS630241YFFT in high-power-density layouts?

The TPS630241YFFT has R_θJA = 53.8 °C/W and R_θJB = 10.1 °C/W. For reliable 1.5 A operation, TI recommends a minimum 100 mm² copper pour under the package connected to PGND via ≥6 thermal vias (0.3 mm diameter). Avoid routing signal traces under the die pad, and ensure GND and PGND connect at a single point near the GND pin (C4) to prevent ground loop noise in the TPS630241YFFT's control loop.

Can the TPS630241YFFT be used with ceramic output capacitors smaller than 22 µF?

Yes - the TPS630241YFFT supports a minimum 16 µF total output capacitance using standard X5R/X7R ceramics. While typical reference designs use two 22 µF capacitors (44 µF total), designs with space constraints may use a single 22 µF + 10 µF combination or three 10 µF units, provided effective capacitance (accounting for DC bias) remains ≥16 µF at rated VOUT. This flexibility is validated in the TPS630241YFFT's recommended operating conditions table.

Is the TPS630241YFFT pin-compatible with other members of the TPS63024x family?

Yes, the TPS630241YFFT shares identical pinout, package (YFF), and footprint with TPS63024 and TPS630242YFFT. All variants use the same 20-pin WCSP layout and electrical interface - only the internal feedback network differs (fixed 2.9 V vs. adjustable vs. fixed 3.3 V). This enables drop-in replacement in existing designs when changing output voltage requirements, without PCB revision.