S-8520 Seiko Instruments, S-8520 Datasheet - Page 17

• Manufacturer Part Number: S-8520
• Description: (S-8520 / S-8521) PWM Control and PFM Control Step DOwn Switching Regulator Controllers
• Manufacturer: Seiko Instruments

Rev.7.4
(1)
(3)
(5)
Fosc-V
S-8520/21(Fosc:180 kHz)
I
S-8520/21(Fosc:60 kHz)
I
S-8520/21(Fosc:300 kHz)
SS1
SS1
Fosc
(kHz)
-V
-V
Characteristics of Major Parameters (Typical values):
I
(µA)
I
SS1
SS1
(µA)
IN
IN
IN
220
210
200
190
180
170
160
150
140
20
15
10
60
50
40
30
20
10
5
0
0
_10
2
PWM Control & PWM/PFM Control Step-Down Switching Regulator-Controllers
2
2
4
4
4
6
6
6
Ta=25
8
8
8
V
V
V
IN
Ta=85
IN
IN
(V)
(V)
(V)
10
10
10
Ta=−40
Seiko Instruments Inc.
12
12
12
Ta=85
Ta=−40
Ta=25
Ta=85
Ta=−40
Ta=25
14
14
14
16
16
16
(2)
(4)
(6)
Fosc-V
S-8520/21(Fosc:300 kHz)
I
S-8520/21(Fosc:180 kHz)
Fosc-V
S-8520/21(Fosc:60 kHz)
SS1
(kHz)
Fosc
-V
Fosc
(kHz)
I
( µA)
SS1
IN
IN
IN
360
340
320
300
280
260
240
80
75
70
65
60
55
50
45
40
40
30
20
10
0
2
2
2
4
4
4
6
6
6
8
8
8
V
V
V
IN
IN
IN
(V)
(V)
(V)
10
10
10
S-8520/8521 Series
12
12
12
Ta=85
Ta=−40
Ta=25
Ta=85
Ta=25
Ta=−40
Ta=25
Ta=85
Ta=−40
14
14
14
16
16
16
17