Epson S1F70000 manual 97

S1F76640 Series

	100
	90
	80
			IO =2mA
	70
		IO =1mA
Peff[%]	60
	50							IO =5mA
	40			IO	=10mA
	30
	20
	10						Ta=25˚C
						V	DD=3V
	0
						C	1 to C4=10		μF
	1	10				100				1000
				fosc[kHz]

	100
	90
	80
	70	IO	=0.5mA
Peff[%]	60
	50			IO =1mA				I	O =2mA
	40
						IO =5mA
	30
	20
	10									Ta=25˚C
								V		DD=2V
	0
								C		1 to C4=10		μF
	1	10					100				1000
					fosc[kHz]

(13) Step-up power conversion	(14) Step-up power conversion
efficiency vs. Oscillation frequency 2	efficiency vs. Oscillation frequency 3

1.8

Ta=25˚C

1.7C1 to C4=10∝F ROSC=1MΩ

1.6

1.5

0.5

VO=20V

0.4VO=12V

VO=8V

[V]STA1 V

1.4

1.3

1.2

1.1

1.0

⎥[V]O

V– VREG

⎥

0.3

0.2

0.1

0

Ta=25˚C

C1 to C4=10μF

100 1000 10000 100000

0 5 10 15 20 25 30

R

L

[Ω]

I

O

[mA]

(15) Step-up start voltage (1) vs. Load resistance	(16) Stabilization output saturation
	resistance vs. Load current

2–54 EPSON

S1F70000 Series Technical Manual