The DA9131 is a high efficiency, dual channel, step down DC-DC (Buck) converter with integrated switching FET's delivering 5 A per channel. The device can operate at efficiency levels above 90%, reducing the thermal design challenges of powering high current rails in a wide range of high-performance electronic systems.
DA9131器件的输入电压范围为2.5 V至5.5 V，输出电压范围为0.3 V至1.9 V，使其适用于各种低压系统。DA9131仅需要两个小0.10μH电感器，提供高度优化的BOM和占地面积。外部电阻分压器支持高于1.9 V的输出电压。
DA9131设备是对话框系列的灵活，可扩展，可靠的汽车系统和子PMICS的一部分，实现了“精确拟合”电源解决方案。它以3.3mm x 4.8mm 24针FC-QFN可湿性侧面套件提供。还提供汽车等级版本（DA9131-A）。
Features
2.5 V至5.5 V输入电压
0.3 V to 1.9 V output voltage
4 MHz nominal switching frequency
精度±1％（静态）
±5 % accuracy (dynamic)
I2C-compatible interface (FM+)
可编程GPIO.
Programmable soft start
Voltage, current, and temperature supervision
关键安全特点
- Output under-voltage and over-voltage protection
- 输入欠压保护
- 2步过温保护
-40°C至+85ºC环境温度范围
Benefits
高效降压转换器提供出色的热性能
Fully integrated switching FET’s means no external FETs or Schottky diodes are required
遥感保证最高的精度，并支持多个PCB路由方案而不会损失性能。
Fully programmable soft start limits the inrush current from the input to give a slope-controlled output voltage.
Dynamic voltage control (DVC) enables adaptive adjustment of the device output voltage depending on the load. This increases efficiency when the downstream circuitry enters low power or idle mode, resulting in power savings.
可配置的GPIOS支持一系列功能，包括I2C，DVC和电源良好指示灯。
优化的BOM成本和占用空间：每个输出需要一个非常小的电感器和电容器提供零件和成本节约
Cycle by cycle current limiting for superior over current protection
雷竞技安卓下载
Switches and routers
Smart metering
Industrial automation
Wireless
Consumer products
SOC / FPGA高性能处理系统需要高效，高电流，电源
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