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S-8351A20MC-J2FT2X Datasheet, PDF (38/51 Pages) Seiko Instruments Inc – SWITCHING REGULATOR CONTROLLER
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STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER
S-8351/8352 Series
Rev.3.0_01
Condition 5 S-8351A50MC
(a) Input voltage (VIN) vs. Output voltage (VOUT)
(Input voltage raising)
5.2
5.1
5.0
4.9
4.8
4.7
4.6
01
IIIIIIOOOOOOUUUUUUTTTTTT
=
=
=
=
=
=
0.1 mA
1 mA
10 mA
50 mA
100 mA
150 mA
2
34
5
6
VIN [V]
(c) Output current (IOUT) vs.Output voltage (VOUT)
5.2
5.1
5.0
VVVIIINNN
=
=
=
1.5
2.0
3.0
V
V
V
4.9
4.8
4.7
4.6
0
50 100 150 200 250
IOUT [mA]
Condition 6 S-8351A50MC
(a) Input voltage (VIN) vs. Output voltage (VOUT)
(Input voltage raising)
5.2
5.1
5.0
4.9
4.8
4.7
4.6
01
23
VIN [V]
IIIIIIOOOOOOUUUUUUTTTTTT
=
=
=
=
=
=
0.1 mA
1 mA
10 mA
50 mA
100 mA
150 mA
4
56
(c) Output current (IOUT) vs.Output voltage (VOUT)
5.2
5.1
5.0
VVVIIINNN
=
=
=
1.5
2.0
3.0
V
V
V
4.9
4.8
4.7
4.6
0
50 100 150 200 250
IOUT [mA]
(b) Input voltage (VIN) vs. Output voltage (VOUT)
(Input voltage falling)
5.2
5.1
5.0
4.9
4.8
4.7
4.6
IIIIIIOOOOOOUUUUUUTTTTTT
=
=
=
=
=
=
0.1 mA
1 mA
10 mA
50 mA
100 mA
150 mA
0
1
2
34
5
6
VIN [V]
(d) Output current (IOUT) vs. Efficiency (η)
100
90
80
70
600.01 0.1
VVVVVIIIIINNNNN
=
=
=
=
=
1.0
1.5
2.0
3.0
4.0
V
V
V
V
V
1
10 100
IOUT [mA]
1000
(b) Input voltage (VIN) vs. Output voltage (VOUT)
(Input voltage falling)
5.2
5.1
5.0
4.9
4.8
4.7
4.60
IIIIIIOOOOOOUUUUUUTTTTTT
=
=
=
=
=
=
0.1 mA
1 mA
10 mA
50 mA
100 mA
150 mA
12
3
4
56
VIN [V]
(d) Output current (IOUT) vs. Efficiency (η)
90
80
70
60
50
0.01 0.1
VVVVVIIIIINNNNN
=
=
=
=
=
1.0
1.5
2.0
3.0
4.0
V
V
V
V
V
1
10
IOUT [mA]
100 1000
38
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