S-8352 Seiko Instruments, S-8352 Datasheet - Page 36

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S-8352

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

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Condition 3 S-8351A30MC
(a) Input voltage (V
(c) Output current (I
Condition 4 S-8351A50MC
(a) Input voltage (V
(c) Output current (I
36
STEP-UP, SUPER-SMALL PACKAGE, PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER
S-8351/8352 Series
(Input voltage raising)
(Input voltage raising)
5.2
5.1
5.0
4.9
4.8
4.7
4.6
3.2
3.1
3.0
2.9
2.8
2.7
2.6
5.2
5.1
5.0
4.9
4.8
4.7
4.6
3.2
3.1
3.0
2.9
2.8
2.7
2.6
0
0
0
0
IN
IN
OUT
OUT
) vs. Output voltage (V
) vs. Output voltage (V
1
50
) vs.Output voltage (V
) vs.Output voltage (V
50
1
2
100
100
I
I
OUT
OUT
V
V
IN
IN
3
[mA]
2
[mA]
[V]
[V]
150
150
OUT
OUT
I
I
I
I
I
I
OUT
OUT
4
I
I
I
I
I
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
)
)
V
V
V
V
V
V
V
V
)
)
IN
IN
IN
3
200
IN
IN
IN
IN
IN
= 0.1 mA
= 1 mA
= 10 mA
= 50 mA
= 100 mA
= 150 mA
200
= 0.1 mA
= 1 mA
= 10 mA
= 20 mA
= 50 mA
= 1.5 V
= 2.0 V
= 3.0 V
= 1.0 V
= 1.5 V
= 1.8 V
= 2.0 V
= 2.5 V
5
Seiko Instruments Inc.
250
250
4
6
(d) Output current (I
(b) Input voltage (V
(d) Output current (I
(b) Input voltage (V
(Input voltage falling)
(Input voltage falling)
100
90
80
70
60
90
80
70
60
50
0.01
5.2
5.1
5.0
4.9
4.8
4.7
4.6
0.01
3.2
3.1
3.0
2.9
2.8
2.7
2.6
0
0
IN
IN
OUT
OUT
) vs. Output voltage (V
) vs. Output voltage (V
0.1
0.1
1
) vs. Efficiency (η)
) vs. Efficiency ( η )
1
2
V
V
V
V
V
V
V
V
V
V
1
I
IN
IN
IN
IN
IN
1
I
OUT
IN
IN
IN
IN
IN
OUT
= 1.0 V
= 1.5 V
= 1.8 V
= 2.0 V
= 2.5 V
V
V
= 1.0 V
= 1.5 V
= 2.0 V
= 3.0 V
= 4.0 V
IN
IN
[mA]
[mA]
2
3
[V]
[V]
10
10
OUT
OUT
I
I
I
I
I
I
4
I
I
I
I
I
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
)
)
100
100
3
= 0.1 mA
= 1 mA
= 10 mA
= 50 mA
= 100 mA
= 150 mA
= 0.1 mA
= 1 mA
= 10 mA
= 20 mA
= 50 mA
Rev.2.0
5
1000
1000
4
6
_00

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