L6920DCTR datasheet(8/16 Pages) STMICROELECTRONICS

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L6920DCTR Scheda tecnica(PDF) 8 Page - STMicroelectronics

Il numero della parte	L6920DCTR

Spiegazioni elettronici	Synchronous rectifier step up converter

PDF	16 Pages

Scroll/Zoom	100%

Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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8 / 16 page

Detailed description

L6920DC

8/16

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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