L6920DCTR 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

比赛名单

L6920DCTR

Synchronous rectifier step up converter

STMicroelectronics 

Detailed description

L6920DC

So, in case of light load, the device works in PFM mode, as shown in Figure 8:

Figure 6. PFM mode condition: Vout = 5V; Vbatt =1.5V ; C2 = Vout ; C3 = Inductor

Current

Figure 7 shows how the device works in case of heavy load.

Figure 7. Heavy load conditions C2 = Vout; C3 = Inductor Current; Vout = 5V;

Vbatt=1.5V

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