S-8352 Seiko Instruments, S-8352 Datasheet - Page 10

• Manufacturer Part Number: S-8352
• Description: (S-8351 / S-8352) SMALL PACKAGE PFM CONTROL STEP-UP SWITCHING REGULATOR
• Manufacturer: Seiko Instruments

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10
Output voltage
Input voltage
Operation start voltage
Oscillation start voltage
Input current during no- load
Current consumption 1
Current consumption 2
Current consumption during
shutdown
(With shutdown function)
Switching current
Switching transistor leakage
current
CONT pin limit voltage
Line regulation
Load regulation
Output voltage temperature
coefficient
Oscillation frequency
Duty ratio 1
Duty ratio 2
(For A, B, D type)
STEP-UP, SUPER-SMALL PACKAGE, PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER
S-8351/8352 Series
Electrical Characteristics
(1) S-8351 Series
Item
V
V
V
V
I
I
I
I
I
I
V
∆V
∆V
∆
f
Duty1
Duty2
IN
SS1
SS2
SSS
SW
SWQ
OSC
OUT
IN
ST1
ST2
CONTLMT
Ta
Symbol
∆
OUT1
OUT2
V
•
OUT
V
OUT
V
I
No external parts, Voltage applied to V
CONT pin pulled up to V
resistor
I
V
V
V
No external parts, V
Apply to CONT pin, Confirm oscillation stop
V
I
Ta = − 40 to + 85°C
V
Measured waveform at CONT pin
V
Measured waveform at CONT pin
Measured waveform at CONT pin at light load
OUT
OUT
V
OUT
ON
OUT
OUT
CONT
IN
OUT
OUT
ON
= V
= 1 mA
= 0 mA
/
= 10 µA to V
OFF
= V
= V
/
= V
= V
OFF
= 0.4 V
OUT(S)
OUT(S)
OUT(S)
OUT(S)
OUT(S)
Seiko Instruments Inc.
= 0 V
= 0 V
× 0.4 to × 0.6
× 0.95
+ 0.5 V
× 0.95,
× 0.95,
Table 15 (1 / 2)
OUT(S)
Condition
CONT
−
−
/ 250 × 1.25
OUT
= V
with 300 Ω
S-8351x15 to 29
S-8351x30 to 49
S-8351x50 to 65
S-8351x15 to 19
S-8351x20 to 29
S-8351x30 to 39
S-8351x40 to 49
S-8351x50 to 59
S-8351x60 to 65
S-8351x15 to 19
S-8351x20 to 29
S-8351x30 to 39
S-8351x40 to 49
S-8351x50 to 59
S-8351x60 to 65
S-8351x15 to 19
S-8351x20 to 24
S-8351x25 to 29
S-8351x30 to 39
S-8351x40 to 49
S-8351x50 to 59
S-8351x60 to 65
OUT
= 10 V,
OUT
,
× 0.976
V
110.9
125.7
135.2
50.2
65.0
78.5
90.7
Min.
OUT(S)
90
70
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
(Ta = 25°C unless otherwise specified)
V
118.2
142.7
164.8
201.6
228.6
245.8
Typ.
15.7
23.2
32.0
42.1
54.9
91.2
±50
100
OUT(S)
8.5
9.0
9.5
9.6
2.3
2.5
2.7
2.9
3.1
3.3
0.9
30
30
75
50
−
−
−
−
−
× 1.024
V
Max.
16.0
26.2
38.6
53.3
70.2
91.5
110
OUT(S)
0.9
0.8
3.5
3.8
4.1
4.4
4.7
5.1
0.5
0.5
10
60
60
80
−
−
−
−
−
−
−
−
−
−
−
−
−
ppm / °C
Unit
kHz
mA
mA
mA
mA
mA
mA
mA
mV
mV
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
%
%
V
V
V
V
V
Rev.2.0
Measurement
circuit
1
1
1
2
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
2
2
1
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