TPS62590 - 采用 2 x 2 SON 封装的 2.25MHz、1A 降压转换器

TPS62590是TI德州仪器公司的一款转换器（集成开关）产品，TPS62590是采用 2 x 2 SON 封装的 2.25MHz、1A 降压转换器，本站介绍了TPS62590的封装应用图解、特点和优点、功能等，并给出了与TPS62590相关的TI元器件型号供参考。

TPS62590 - 采用 2 x 2 SON 封装的 2.25MHz、1A 降压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS62590 device is a high efficiency synchronous step down converter, optimized for battery powered portable applications. It provides up to 1000-mA output current from batteries, such as single Li-Ion or other common chemistry AA and AAA cells.

With an input voltage range of 2.5 V to 5.5 V, the device is targeted to power a large variety of portable handheld equipment or POL applications.

The TPS62590 family operates at 2.25-MHz fixed switching frequency and enters a Power Save Mode operation at light load currents to maintain a high efficiency over the entire load current range.

The Power Save Mode is optimized for low output voltage ripple. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. In the shutdown mode the current consumption is reduced to less than 1 µA. The TPS62590 allows the use of small inductors and capacitors to achieve a small solution size.

The TPS62590 is available in a 2-mm × 2-mm 6-pin QFN package.

产品特性

Output Current up to 1000 mA
Input Voltage Range from 2.5 V to 5.5 V
Output Voltage Accuracy in PWM mode ±2.5%
Typ. 15-µA Quiescent Current
100% Duty Cycle for Lowest Dropout
Available in a 2 × 2 × 0.8 mm QFN Package
For Improved Features Set, See TPS62290
APPLICATIONS
- Portable Handheld
- WLAN
- Low Power DSP Supply
- POL

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