graph LR
subgraph "高效DC-DC转换与负载开关"
A["锂电池 \n 3.7-4.4V"] --> B["电池保护IC"]
B --> C["主电源总线"]
C --> D["VBGQF1606 \n 主负载开关"]
D --> E["Buck转换器输入"]
D --> F["Boost转换器输入"]
subgraph "Buck转换器电路"
E --> G["VBGQF1606 \n (同步整流上管)"]
G --> H["电感L1"]
H --> I["输出电容"]
I --> J["1.8V核心电源"]
H --> K["VBGQF1606 \n (同步整流下管)"]
K --> L["PGND"]
end
subgraph "Boost转换器电路"
F --> M["电感L2"]
M --> N["VBGQF1606 \n (升压开关)"]
N --> O["PGND"]
M --> P["输出二极管"]
P --> Q["输出电容"]
Q --> R["5V显示电源"]
end
S["PMIC控制器"] --> T["栅极驱动"]
T --> G
T --> K
T --> N
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style K fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style N fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
线性马达驱动拓扑详图
graph TB
subgraph "触觉驱动电路"
A["主电源总线"] --> B["VBC1307 \n 驱动开关"]
B --> C["线性谐振马达(LRA)"]
C --> D["GND"]
E["MCU PWM输出"] --> F["触觉驱动IC"]
F --> G["栅极驱动器"]
G --> B
subgraph "驱动波形优化"
H["正弦波PWM"] --> F
I["过流保护"] --> F
J["软启动控制"] --> F
end
K["马达电流检测"] --> L["ADC反馈"]
L --> F
end
subgraph "散热设计"
M["PCB热焊盘"] --> B
N["TSSOP8封装"] --> O["敷铜散热区"]
O --> P["过孔阵列"]
P --> Q["内层GND平面"]
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
多路电源切换拓扑详图
graph LR
subgraph "VBKB4265双P-MOS开关通道"
subgraph "通道1: GPS/蓝牙电源管理"
A["3.3V传感器电源"] --> B["VBKB4265-Ch1"]
B --> C["GPS模块电源"]
B --> D["蓝牙模块电源"]
E["MCU GPIO1"] --> F["电平转换"]
F --> G["栅极控制1"]
G --> B
end
subgraph "通道2: 传感器组电源管理"
H["3.3V IO电源"] --> I["VBKB4265-Ch2"]
I --> J["加速度计电源"]
I --> K["陀螺仪电源"]
I --> L["心率传感器电源"]
M["MCU GPIO2"] --> N["电平转换"]
N --> O["栅极控制2"]
O --> I
end
end
subgraph "超低功耗待机模式"
P["深度睡眠控制"] --> E
P --> M
Q["纳安级漏电流"] --> B
Q --> I
R["快速唤醒"] --> S["<1ms切换时间"]
end
subgraph "微型封装优势"
T["SC70-8封装"] --> U["2.0×2.1mm尺寸"]
V["节省PCB面积"] --> W["比SOT23节省60%"]
X["双MOS集成"] --> Y["减少元件数量"]
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style I fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBKB4265规格书
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