S-8355 Seiko Instruments, S-8355 Datasheet - Page 16

• Manufacturer Part Number: S-8355
• Description: (S-8355 - S-8358) PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR
• Manufacturer: Seiko Instruments

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16
Output voltage
Input voltage
Operation start voltage
Oscillation start voltage
Operation holding voltage
Current consumption 1
Current consumption 2
Current consumption during
shutdown
(With shutdown function)
EXT pin output current
Line regulation
Load regulation
Output voltage temperature
coefficient
Oscillation frequency
Maximum duty ratio
PWM / PFM switching duty
ratio (For S-8356/58 Series)
(With shutdown function)
(With shutdown function)
Soft start time
Efficiency
ON
ON
STEP-UP, SUPER-SMALL PACKAGE, 600 kHz, PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8355/56/57/58 Series
(2) 250 kHz Product (H, J and L Types)
/
/
OFF
OFF
pin input voltage
pin input current
Item
V
V
V
V
V
I
I
I
I
I
∆V
∆V
∆
f
MaxDuty
PFMDuty
V
V
V
I
I
t
EFFI
SS1
SS2
SSS
EXTH
EXTL
OSC
SH
SL
SS
OUT
IN
ST1
ST2
HLD
SH
SL1
SL2
Ta
Symbol
∆
OUT1
OUT2
V
•
OUT
V
OUT
V
V
V
I
No external parts, Voltage applied to V
I
voltage gradually
V
V
V
V
V
I
Ta = −40 to +85°C
V
V
V
Measured oscillation at EXT pin
Judged oscillation stop at
EXT pin
OUT
OUT
OUT
ON
ON
ON
OUT
OUT
EXT
EXT
IN
OUT
OUT
IN
= V
= V
= 1 mA
= 1 mA, Judged by decreasing V
/
= 10 µA to V
/
/
OFF
= V
= 0.4 V
OFF
OFF
= V
= V
= V
= V
OUT(S)
OUT(S)
OUT
OUT(S)
OUT(S)
OUT(S)
OUT(S)
Seiko Instruments Inc.
= 0 V
= V
= 0 V
− 0.4 V
× 0.4 to × 0.6
− 0.1 V, No-load
OUT(S)
× 0.95
+ 0.5 V
× 0.95
× 0.95
OUT(S)
Condition
Table 24
× 0.95
−
−
−
−
/ 50 × 1.25
S-835xx15 to 19
S-835xx20 to 29
S-835xx30 to 39
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
S-835xx15 to 19
S-835xx20 to 29
S-835xx30 to 39
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
S-835xx15 to 19
S-835xx20 to 24
S-835xx25 to 29
S-835xx30 to 39 − 10.3 − 20.7
S-835xx40 to 49 − 13.3 − 26.7
S-835xx50 to 59 − 16.1 − 32.3
S-835xx60 to 65 − 18.9 − 37.7
S-835xx15 to 19
S-835xx20 to 24
S-835xx25 to 29
S-835xx30 to 39
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
At V
At V
OUT
OUT
IN
≥1.5 V
<1.5 V
OUT
× 0.976
V
212.5
− 4.5
− 6.2
− 7.8
− 0.1
− 0.1
12.6
15.5
19.2
23.8
27.4
30.3
0.75
Min.
OUT(S)
0.7
9.5
1.5
70
10
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
(Ta = 25 ° C unless otherwise specified)
V
− 12.3
− 15.7
110.5
− 8.9
Typ.
28.9
42.7
58.0
74.5
92.0
19.0
25.2
31.0
38.5
47.6
54.8
60.6
±50
250
OUT(S)
8.7
8.8
9.0
9.2
9.3
9.5
3.0
30
30
78
15
85
−
−
−
−
−
−
−
−
−
−
× 1.024
V
124.1
153.4
184.2
287.5
Max.
48.2
71.1
96.7
17.3
17.6
18.0
18.3
18.6
19.0
OUT(S)
0.9
0.8
0.5
0.3
0.2
0.1
0.1
6.0
10
60
60
85
24
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
ppm / °C
Unit
kHz
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mV
mV
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
ms
%
%
%
V
V
V
V
V
V
V
V
Rev.6.6
Measurement
circuit
2
2
2
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
1
1
1
1
1
2
2
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