Epson S1F70000 manual 37

S1F76620 Series

100

90

Peff[%]	80
	70
	60
	50

1

IO =1mA

IO =5mA

IO =10mA

IO =2mA

Ta=25°C

VDD=3V

C1=C2=10∝F

10	100	1000
	focs[kHz]

100
	90
	80	IO =0.5mA
Peff[%]					IO =1mA
							IO =2mA
	70
				IO =5mA
	60					Ta=25°C
						VDD=2V
						C1=C2=10∝F
	50
	1	10	100					1000
			focs[kHz]

(13)Step-up power conversion efficiency vs. Oscillation frequency 2

(14)Step-up power conversion efficiency vs. Oscillation frequency 3

VSTA1[V]

1.7
1.6
1.5
			Ta=25°C
1.4			C1=C2=10∝F
1.3			ROSC=1MΩ
1.2
1.1
1.0
0.9
100	1000	10000		100000
		RL[Ω]

(15) Step-up start voltage (1) vs. Load resistance

1–20 EPSON

S1F70000 Series Technical Manual