GreenPAK™ with Low Drop Out Regulators

为了克服这些挑战，对话已经制定了“灵活权力岛屿”的概念。使用FPI，设计人员可以将它们的复杂电力系统分成一些局部电源区域（或岛），每个数量包括在附近支持负载所需的功率控制，功率排序和功率调节。该技术导致更高的性能和更有效的解决方案，可以灵活地根据每个单独系统的要求量身定制。

In some cases, using an FPI can be very useful to augment the functions included in a Power Management IC (PMIC). In this use case, the FPI can support local point-of-load regulation, sequencing and power monitoring. This can result in simpler layout, as well as improved energy and thermal efficiency.

对于较小和更简单的系统（具有最多六个电源轨），FPI概念可以提供大多数或所有电源系统功能。在这种情况下，FPI可以用作“μPMIC”，但是增加了更高水平的灵活性和定制的益处，没有对NRE的要求。

With the SLG46580, Dialog has captured many of these necessary power system functions (power monitoring, sequencing, reset and power switching) in a tiny 2.0 x 3.0 mm 20 pin fully encapsulated plastic package. Using Dialog’s easy-to-use GUI based GPAK Designer™ and GPAK development hardware, designers can quickly and easily implement their unique configuration of the device, thereby customizing the functions to match their unique power requirements.

The SLG46580 has four LDOs, each with a maximum output current of 150mAs. Each of the LDOs has a programable output voltage level that can be set to one of thirty two different values from 0.9V to 4.35V, and also have programmable options for slew-rate selection and fault detection.

FPI概念广泛适用于一系列终端市场，如下所示。

• Handheld Devices
• Wearable Electronics
• Computing & Storage
• Consumer Electronics
• Smart Home
• Networking & Communications
• Medical & Industrial

Benefits of GreenPAK with LDOs

高集成

• 包括通常在电力系统中找到的许多组件
  • 功率控制
  • 电源测序
  • 电力监控
  • 力量Regulation

Small Size

• 2.0 x 3.0小董事会区域的STQFN包装

Tri-Mode 150 MA LDO调节器：

• 模式0：150mA输出，静态电流在约60μA
• Mode 1: 100μA output with Quiescent Current at ~6 μA
• Bypass Mode: Acts like a load switch

GreenPak可配置宏观细胞的灵活性

• Analog Comparators
• Combination Function Macro-cells
• 异步状态机（ASM）
• I²C从协议界面

使用异步状态机进行电源排序

异步状态机（ASM）宏单元非常适合驾驶灵活的电源排序架构。基于图形用户界面（GUI）的开发工具允许用户快速定义操作状态，允许的状态之间的转换，并链接到驱动每个状态转换的信号。使用其他GreenPak宏单元允许用户容易地基于基于时间的状态转换（使用延迟宏小区）和逻辑功能（使用查找表）。下面所示的示例状态机是在演示项目中使用的，以驱动六个电源轨的电源排序信号，以及依次打开四个LDO的信号。

控制LDO与GreenPak资源

包括在这些设备中的LDO允许用户在操作期间动态地控制输出的许多方面：

Controlling Output Voltage:Each LDO can support two output voltages, which are user-selectable. There is an internal signal coming from the Connection Matrix that can switch the output voltage during operation.

控制功耗：Each LDO regulator can operate in MODE0 (standard active mode supporting full 150 mA output), as well as MODE1 (low power mode with maximum 100μ output with reduced quiescent current consumption.

加载开关模式：每个LDO都有一个用户可选择的选项，其中稳压器停止调节，功率MOSFET作为电源开关接通，使电压直接施加到VOUT到VOUT。

Changing LDO Behavior Via I²C:All of the control features listed above can also be changed via I²C commands.