GreenPak™具有低跌落调节器

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.

SLG46580有四个LDO，每个LDO，最大输出电流为150mas。每个LDO具有可编程输出电压电平，可以设置为30个不同的值中的一个，从0.9V到4.35V中的一个，并且还具有可编程选项，用于重流速率选择和故障检测。

The FPI concept is broadly applicable across a range of end markets, shown below.

• 手持设备
• 可穿戴电子产品
• Computing & Storage
• Consumer Electronics
• 聪明的家
• Networking & Communications
• Medical & Industrial

Greenpak与LDO的好处

高集成

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

小尺寸

• 2.0 x 3.0小董事会区域的STQFN包装

Tri-Mode 150 MA LDO调节器：

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

Flexibility of GreenPAK Configurable Macro-cells

• 模拟比较器
• 组合功能宏细胞
• Asynchronous State Machine (ASM)
• I²C从协议界面

使用异步状态机进行电源排序

The Asynchronous State Machine (ASM) macro-cell is perfect for driving a flexible power-sequencing architecture. The Graphic User Interface (GUI) based development tools allow the user to quickly define the operating states, the allowed transitions between states, and link to the signals that drive each state transition. Using other GreenPAK macro-cells allows the user to easily time based state transitions (using delay macro-cells) and logic functions (using Look-Up Tables). The example state machine shown below is the one used in the demo project to drive both the power sequencing signals for six power rails, as well as the signals to turn on the four LDOs in sequence.

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：每个LDO稳压器都可以以MODE0（标准主动模式支持满150 mA输出），以及MODE1（低功耗模式，最大为100μ的输出，静态电流消耗降低。

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。

通过I²C更改LDO行为：All of the control features listed above can also be changed via I²C commands.