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二、特点
5~23V宽输入工作电压
0.8V的内部基准电压
可以驱动2个N沟道场效应管
高DC增益电压模式PWM控制
快速的瞬态响应
固定的400KHz振荡频率
全动态0~80%的占空系数
内部软启动
自适应非重叠栅极驱动
过流保护,低压闭塞
顺应RoHS规范和100%无铅
三、引脚功能
引脚 | 名称 | 功能 | 类型 |
1 | BOOT | 自举 | |
2 | DRIVE | 驱动使能 | O |
3 | FB | 输出反馈 | I |
4 | VCC | 供电 | |
5 | LGATE | 下管栅极驱动 | O |
6 | GND | 地 | |
7 | UGATE | 上管栅极驱动 | O |
8 | PHASE | 过流保护下管电压降监测 | I |
Ordering Info |
Note : |
Features |
• 8V to 23V Wide Range Operation • 0.8V Internal Reference • Internal Soft Start • High DC Gain Voltage Mode PWM Control • Fixed 400kHz Switching Frequency • Fast Transient Response • Fully Dynamic 0 to 80% Duty Cycle • Over Current Protection • Under Voltage Protection • Over Temperature Protection • Tiny Package TSOT-23-8 • RoHS Compliant and 100% Lead (Pb)-Free |
Application |
• Set-top Box Power Supplies • PC Subsystem Power Supplies • Cable Modems, DSL Modems • DSP and Core Communication Processor Power Supplies • Memory Power Supplies • Personal Computer Peripherals • Industrial Power Supplies • Low Voltage Distributed Power Supplies |
Pin Configurations |
(TOP VIEW)
|
Typical Applications Circuit |
Figure 1. Single Input Power Rail Application Figure 2. Split Input Power Rail Application |
RT8110PJ8
RICHTEK
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