Battery efficiency focus, Texas Instruments TPS562231 buck converter targets space-limited designs

With its TPS562231 synchronous buck converter, Texas Instruments targets engineers building compact, cost-sensitive systems that still demand solid power efficiency. The 2 A regulator comes in a tiny SOT-563 package and supports input voltages up to 18 V for a wide range of applications.

Edited by ad hoc news Flagship & Bestseller Desk. Reviewed before publication on 06/15/2026 at 10:27 AM ET. Details in the imprint.

Texas Instruments' TPS562231 synchronous buck converter has quietly become one of the company's widely used power-management building blocks for engineers who need a compact, efficient 2 A regulator for space-constrained boards. The DC-DC converter accepts up to 18 V on the input, steps it down to as low as 0.6 V, and does so from a small SOT-563 package that helps shrink overall power stage footprint in consumer and industrial electronics.

What the TPS562231 buck converter delivers in practice

At its core, the TPS562231 is a step-down regulator rated for up to 2 A output current, with a wide 4.5 V to 18 V input range that covers typical 5 V, 9 V, 12 V and 15 V rails found in many systems. According to Texas Instruments' official datasheet, the device integrates high-side and low-side MOSFETs for synchronous rectification, which allows peak efficiencies above 90 percent under suitable operating conditions and reduces the need for large heat sinks in tightly packed designs. The manufacturer highlights the converter's 580 kHz fixed switching frequency and small SOT-563 package as key enablers for compact power stages.

Engineers designing for small form factor consumer products and embedded systems often struggle with board space, and here the TPS562231's small outline and minimal external component count can be more important than raw current capability. The regulator typically operates with just an inductor and a few capacitors, enabling compact, low-profiles designs while maintaining transient response suitable for microcontrollers, FPGAs and other digital loads that may draw dynamic currents in the sub-2 A class. Technical reviewers in the power electronics community have pointed out that similar 2 A monolithic buck devices can simplify layouts compared to older controller-plus-MOSFET architectures, reducing both development time and potential EMI issues in dense PCBs. Coverage in EE Times has underscored how compact synchronous buck converters like these support higher power density trends in everyday electronics.

Beyond size, the TPS562231 aims at predictable behavior in cost-sensitive designs by including features such as cycle-by-cycle overcurrent protection, undervoltage lockout, and thermal shutdown. These protection mechanisms can help reduce the risk of catastrophic failure when a downstream rail is shorted or a board is deployed in environments with fluctuating input supplies, such as automotive aftermarket accessories or industrial control boxes fed from noisy 12 V or 24 V sources. Distributor application notes and reference designs show the part used in everything from LED lighting control electronics to small single-board computers as a main or auxiliary rail, underlining its role as a general-purpose workhorse rather than a narrowly targeted specialty component. Major catalog distributors describe the TPS562231 as a widely available 2 A synchronous buck regulator suited for point-of-load conversion in consumer and industrial markets.

Within Texas Instruments' large analog portfolio, the TPS562231 sits as an entry-level yet versatile power-management solution for customers who value footprint and ease of use over advanced programmability or telemetry. It complements higher-current and feature-rich devices in TI's catalog, giving hardware teams a broad toolkit to match each rail's requirements in a design. Shares of Texas Instruments (US8825081040) traded on NASDAQ at $301.12 on 06/12/2026.

TPS562231 in brief: key technical facts

• Product: TPS562231 synchronous buck converter
• Manufacturer: Texas Instruments Inc.
• Category: Flagship/Bestseller analog power IC
• Launch date: Around 2017, in ongoing production
• MSRP / Price: Typically around $0.40 to $0.70 in volume via distributors
• Availability: Widely available through major electronics distributors and TI's online store
• Target audience: Hardware engineers designing compact, cost-sensitive consumer, industrial and embedded systems needing up to 2 A step-down conversion
• Key differentiator / USP: Combines 2 A output, 4.5 V to 18 V input range and synchronous efficiency in a tiny SOT-563 package with minimal external components.

This article was a.i.-assisted and editorially reviewed. Product information without warranty; prices and availability may change at short notice. Not investment advice and not a buy or sell recommendation. Trading involves risk up to and including the total loss of invested capital.