TLV62569DBV Step-Down Converter – Compact Efficiency for Portable Systems
について TLV62569DBV is a synchronous buck converter from テキサス・インスツルメンツ that offers compact, high-efficiency power delivery in space-limited designs. This device is engineered for applications where size, battery runtime, and system simplicity are critical—such as in wearables, IoT edge nodes, and portable medical devices.
With a fixed 2 MHz switching frequency and a fully integrated power MOSFET, the converter allows designers to reduce external component count and system complexity. It supports up to 600 mA output current with excellent load and line regulation, and its quiescent current of just 15 µA makes it an ideal solution for always-on low-power devices.
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Efficiency and Compactness in One
Unlike traditional DC-DC converters that require bulky external passives or suffer from high standby power, the TLV62569DBV combines integration and power efficiency in a compact SOT-23-5 package. It helps designers meet modern battery-powered design requirements without compromising board real estate or thermal budget.
Its internal loop compensation simplifies design effort, while a Power Save Mode boosts efficiency at light loads. Built-in soft-start and protection features further enhance system reliability, even in harsh operating conditions.
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Technical Parameters – TLV62569DBV
| パラメータ | 価値 |
|---|---|
| 入力電圧範囲 | 2.5 V to 5.5 V |
| 出力電圧 | Adjustable down to 0.6 V |
| 出力電流 | 600 mA |
| スイッチング周波数 | 2 MHz (fixed) |
| 静止電流 | 15 µA (typ) |
| Shutdown Current | <1 µA |
| 効率性 | 95%まで |
| Enable Pin | Active-high logic compatible |
| プロテクション機能 | Thermal shutdown, short-circuit protection |
| パッケージ | SOT-23-5 |
| Operating Temp | -40°C ～ +125°C |
Advantages Over Conventional Power Modules
Compared to traditional LDOs or bulkier discrete switchers, the TLV62569DBV provides superior power conversion efficiency, especially under dynamic load conditions. Its high switching frequency allows the use of small inductors and capacitors, reducing BOM cost and board size.
Its performance at low load currents, enabled by Power Save Mode, significantly outperforms many alternatives that consume more current even when idle. This makes it an ideal fit for intermittent operation systems where standby power matters.
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Applications That Benefit from TLV62569DBV
- Wearable Electronics: Efficient regulation maximizes battery runtime in compact form factors.
- IoT Sensor Nodes: Maintains low power draw during sleep cycles and delivers quick wake-up response.
- Medical Portable Devices: Ensures safe, stable power supply to sensitive analog or digital components.
- Battery-Powered Instruments: Helps reduce heat and size, while boosting performance.
- コンシューマー・エレクトロニクス Suitable for Bluetooth peripherals, headphones, and smart accessories.
Texas Instruments – Reliability Meets Performance
テキサス・インスツルメンツ has long been a leader in power management solutions, and the TLV62569DBV reflects its commitment to integrated performance, energy efficiency, and system protection. As part of TI’s extensive analog portfolio, this device is supported by comprehensive design resources including EVMs, simulation tools, and reference designs to shorten your development cycle.
Design engineers around the world trust TI’s rigorous testing, quality assurance, and documentation for both consumer-grade and industrial-grade use cases. The TLV62569DBV offers stable operation across temperature, supply voltage, and load current variations—making it a preferred choice for volume production.
よくあるご質問
1. Can the TLV62569DBV operate efficiently with a lithium-ion battery?
Yes. With a 2.5 V to 5.5 V input range, the TLV62569DBV is ideal for single-cell Li-Ion batteries, providing efficient conversion throughout the full discharge curve.
2. What happens when the load current is very low?
In light-load conditions, the device automatically enters Power Save Mode, which maintains high efficiency by reducing switching losses, ideal for battery-sensitive applications.
3. Can I use this in a noise-sensitive analog system?
Yes, its 2 MHz switching frequency allows for easier filtering of switching noise, while its smooth transient response ensures clean power rails for analog circuits.
4. What are the key protection features of the TLV62569DBV?
The device includes over-temperature protection and current-limit protection to prevent damage during fault conditions, enhancing overall system robustness.
5. How does this device simplify PCB design?
Its internal compensation, small footprint, and minimal external components reduce layout complexity and allow for fast design iterations—especially in dense PCB environments.
