Texas Instruments TLV62568 降壓轉換器 - 1A 同步 SOT-23 封裝

Texas Instruments TLV62568 1A Step-Down Synchronous Buck Converter

的 TLV62568 從 德州儀器 is a high-efficiency synchronous buck converter optimized for space-constrained, low-power applications. Delivering up to 1 A continuous output current in a compact 5-pin SOT-23 package, it supports input voltages from 2.5 V to 5.5 V—ideal for modern low-voltage electronics powered by Li-ion batteries or USB supplies.

This converter integrates low R_DS(on) power switches and operates at a fixed frequency of 2 MHz, allowing for compact external components and fast transient response. Whether powering wireless modules, MCUs, or sensors, the TLV62568 offers dependable voltage regulation and thermal performance in industrial and consumer designs.

Compact DC-DC Conversion for Space-Constrained Electronics

For engineers working on miniaturized electronics, the TLV62568 offers substantial benefits. The 5-pin SOT-23 package simplifies PCB layout, while its 1 A output capability ensures robust supply rails for core logic, analog circuits, and peripheral components.

Additionally, its 100% duty cycle support enables low dropout operation for near-input-to-output voltage tracking. This is particularly useful in battery-discharge scenarios, ensuring stable system behavior until the final energy reserves are depleted.

Technical Parameters – TLV62568 Overview

Why Choose TLV62568 for Portable and Low-Power Applications?

Compared to typical alternatives, the TLV62568 stands out due to its combination of small footprint, high switching frequency, and ultra-low quiescent current. Designers of wearable and IoT devices often struggle with balancing battery runtime and board space—this converter meets both demands with ease.

The 2 MHz fixed frequency enables the use of small inductors and capacitors, reducing component height and system cost. At the same time, the ability to operate at 100% duty cycle helps in near-dropout conditions, ensuring continuous operation down to the last usable millivolts of battery life.

Its PFM mode allows energy-saving operation during light loads, further extending system runtime in standby or sleep states. These features, combined with Texas Instruments’ support infrastructure, make the TLV62568 a proven solution across countless consumer and industrial applications.

Typical Applications for TLV62568

• Wearable Electronics: Extends battery life while powering low-voltage sensors and MCUs.
• Bluetooth Modules: Provides reliable 3.3 V or 1.8 V rails with fast transient response.
• IoT Sensor Nodes: Minimizes system power drain in sleep modes through ultra-low IQ.
• Handheld Industrial Tools: Delivers efficient DC-DC conversion from lithium packs.
• Digital Cameras and Audio Devices: Reduces noise in power-sensitive analog paths.

About Texas Instruments – Innovation with Proven Quality

德州儀器 remains a global standard for analog ICs, offering decades of expertise in power management. The TLV62568 is part of a comprehensive DC-DC product portfolio supported by extensive online tools, reference designs, and application notes.

TI’s rigorous testing standards and long-term supply roadmap ensure the TLV62568 meets quality expectations across commercial and industrial sectors. Designers benefit from documentation clarity, global distribution, and community support, making development cycles faster and more predictable.

常見問題 (FAQ)

1. What is the maximum output current supported by TLV62568?

The TLV62568 supports up to 1 A continuous output current, making it suitable for powering a wide range of embedded processors and peripherals that require stable supply voltages.

2. Is this converter suitable for battery-powered designs?

Yes. With a wide input range down to 2.5 V and ultra-low quiescent current, it is ideal for single-cell lithium-ion and lithium-polymer battery systems found in portable electronics.

3. What are the advantages of its 2 MHz switching frequency?

The high switching frequency enables smaller inductors and capacitors, saving board space and allowing for lower-profile components—critical for compact designs like wearables and portable instruments.

4. Can the TLV62568 be used in noise-sensitive applications?

Yes. The synchronous architecture and high frequency minimize output voltage ripple and EMI, making it suitable for analog and RF circuits where power noise must be tightly controlled.

5. What type of protection does this converter include?

It features built-in thermal shutdown and cycle-by-cycle current limiting to protect the device and load from fault conditions, enhancing reliability in rugged or mission-critical applications.