Texas Instruments TPS6283810YFPT

Overview

TPS6283810YFPT from Texas Instruments is a 3-A synchronous step-down DC-DC converter in a 0.8 mm × 1.2 mm WCSP package, featuring fixed 1.0-V output (±1%), 3.5-MHz switching frequency, and DCS-Control™ topology for high light-load efficiency. It operates across 2.4 V to 5.5 V input and delivers stable power to compact battery-powered systems such as optical modules and wearable sensors.

For engineers reviewing the TPS6283810YFPT datasheet, TPS6283810YFPT pinout, TPS6283810YFPT application, or TPS6283810YFPT equivalent, key selection criteria include its ultra-small WCSP footprint, active output discharge, power-good signaling, and seamless PWM-to-Power-Save Mode transition under dynamic load conditions.

Technical Context

The TPS6283810YFPT implements DCS-Control™ architecture-combining voltage-mode control with direct feedback path and seamless transition between PWM and Power Save Mode (PSM). Its internal 26-mΩ/26-mΩ dual MOSFETs enable high-efficiency regulation at up to 3 A, while the 3.5-MHz fixed-frequency PWM operation ensures minimal external component size.

Functional modes include 100% duty-cycle low-dropout operation for extended battery life, hiccup-mode short-circuit protection triggered after 32 current-limit events, and thermal shutdown at 150 °C with 20 °C hysteresis. The device supports pre-biased startup and features an open-drain PG output with 92–110% valid window and 100-µs blanking on rising edge.

Key Specifications

Pinout & Package

The TPS6283810YFPT is housed in a 0.8 mm × 1.2 mm, 6-pin wafer-level chip-scale package (YFP) with bottom-side solder balls. Thermal performance is optimized via direct die attachment to PCB copper; R_θJA = 141.3 °C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS6283810YFPT, the TPS62864YFPR offers higher current and frequency but shifts output voltage, while the MP2152GQZ-P trades WCSP miniaturization and integrated features for cost and package simplicity-making TPS6283810YFPT optimal for ultra-compact, feature-complete 1.0-V applications.

Availability

TPS6283810YFPT is available at Aetrix Electronics and suitable for optical transceivers, wearable health sensors, smartphone application processors, and IoT edge node microcontrollers requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance.

Supply support for TPS6283810YFPT 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 company specializing in analog, embedded processing, and power management technologies, with decades of leadership in high-efficiency DC-DC conversion.

The TPS6283810YFPT belongs to TI's "Tiny Buck" family-designed specifically for space- and power-constrained portable electronics where ultra-small size, low IQ, and fast transient response are mandatory.

FAQ

What is the recommended input capacitor for TPS6283810YFPT?

The TPS6283810YFPT datasheet specifies a 4.7-µF X7R ceramic capacitor placed as close as possible to the VIN and GND pins. This value minimizes input voltage ripple and supports stable operation across the full 2.4–5.5 V input range. Larger values (e.g., 10 µF) further reduce ripple but are not required for basic functionality. Placement proximity to the IC is more critical than capacitance tolerance.

Does TPS6283810YFPT support pre-biased output startup?

Yes, the TPS6283810YFPT supports pre-biased output startup. When enabled, it begins regulation from the existing output voltage level rather than forcing a hard discharge-and-ramp sequence. This prevents reverse current flow into already-powered downstream circuitry and avoids disrupting bias conditions in sensitive analog sections-critical in multi-rail systems where sequencing must be preserved.

What is the maximum junction temperature for continuous operation of TPS6283810YFPT?

The TPS6283810YFPT has a maximum recommended operating junction temperature of 125 °C per its Recommended Operating Conditions table. While thermal shutdown activates at 150 °C, sustained operation above 125 °C accelerates aging and reduces reliability. For 3-A continuous loads, ensure adequate PCB copper area (≥200 mm² thermal pad exposure) and consider airflow or localized thermal relief to maintain TJ ≤ 125 °C.

Can TPS6283810YFPT be used with a 0.24-µH inductor?

Yes, the TPS6283810YFPT is explicitly validated with a 0.24-µH inductor (e.g., Murata DFE160810S-R24M) in its typical application schematic and WEBENCH® design tools. This value enables optimal balance of size, efficiency, and transient response at 3.5-MHz switching. Inductor saturation current must exceed 4.9 A, and DC resistance should be ≤30 mΩ to maintain efficiency and thermal performance.

How does the power-good (PG) pin of TPS6283810YFPT behave during startup and fault conditions?

The PG pin of TPS6283810YFPT remains high-impedance until VFB reaches ≥96% of nominal (1.0 V), then pulls low if VFB falls below 92% or exceeds 110%. During startup, it asserts after soft-start completes (~1.25 ms). It de-asserts during UVLO, thermal shutdown, or EN=low. A 100-µs blanking time prevents false triggering on initial rise, and a 20-µs deglitch filter rejects noise-induced drops.