S-8353 Seiko Instruments, S-8353 Datasheet - Page 11

• Manufacturer Part Number: S-8353
• Description: (S-8353 / S-8354) PWM Control Switchable Built-in Transistor Switching Regulator
• Manufacturer: Seiko Instruments

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External parts
V
Remark V
Output voltage
Input voltage
Operation start voltage
Oscillation start voltage
Operation holding voltage
Current consumption 1
Current consumption 2
Switching current
Switching transistor leakage
current
Line regulation
Load regulation
Output voltage temperature
coefficient
Oscillation frequency
Maximum duty ratio
PWM / PFM switching duty
ratio (For S-8354 Series)
Soft start time
Efficiency
Rev.1.4
IN
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
(2) 30 kHz Product (C Type)
= V
Coil:
Diode:
Capacitor: F93 (16 V, 22 µ F tantalum type) of Nichicon Corporation
OUT(S)
Item
_00
OUT(S)
× 0.6 applied, I
specified above is the set output voltage value, and V
CDRH6D28-101 of Sumida Corporation
MA2Z748 (Shottky type) of Matsushita Electric Industrial Co., Ltd.
OUT
V
V
V
V
V
I
I
I
I
∆V
∆V
∆
f
MaxDuty
PFMDuty
t
EFFI
SS1
SS2
SW
SWQ
OSC
SS
OUT
IN
ST1
ST2
HLD
Ta
Symbol
∆
OUT1
OUT2
= V
V
•
OUT
V
OUT(S)
OUT
/ 250 Ω
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
OUT
OUT
OUT
OUT
OUT
CONT
CONT
IN
OUT
OUT
IN
= V
= V
= 1 mA
= 1 mA, Judged by decreasing V
= 10 µA to V
= V
= V
= V
= V
= 0.4 V
= V
OUT(S)
OUT(S)
OUT(S)
OUT(S)
OUT(S)
OUT(S)
Seiko Instruments Inc.
OUT
× 0.4 to × 0.6
− 0.1 V, No-load
= 10 V
× 0.95
+ 0.5 V
× 0.95
× 0.95
OUT(S)
Condition
Table 14
−
−
/ 250 × 1.25
−
−
S-835xx20 to 29
S-835xx30 to 39
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
S-835xx20 to 29
S-835xx30 to 39
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
S-835xx20 to 24
S-835xx25 to 29
S-835xx30 to 39
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
OUT
IN
OUT
is the typical value of the actual output voltage.
× 0.976
V
Min.
100
108
OUT(S)
0.7
3.0
52
62
72
88
25
75
10
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
(Ta = 25 ° C unless otherwise specified)
V
Typ.
13.1
16.8
20.7
24.8
435
100
115
141
160
172
±50
OUT(S)
9.8
4.7
4.9
5.1
5.2
6.0
83
30
30
30
83
15
84
−
−
−
−
−
× 1.024
S-8353/8354 Series
V
Max.
16.4
21.9
28.0
34.5
41.4
10.1
10.4
12.0
OUT(S)
0.9
0.8
9.0
9.4
9.7
0.5
10
60
60
35
90
24
−
−
−
−
−
−
−
−
−
ppm / °C
Unit
kHz
mA
mA
mA
mA
mA
mA
mV
mV
ms
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
%
%
%
V
V
V
V
V
Measurement
circuit
2
2
2
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
2
2
11