S-8351A20MC-J2FT2X Datasheet, PDF (41/51 Pages) Seiko Instruments Inc – SWITCHING REGULATOR CONTROLLER

STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER
Rev.3.0_01
S-8351/8352 Series
Condition 11 S-8352A50MC
(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
IIIIII_{OOOOOOUUUUUUTTTTTT}
=
=
=
=
=
=
0.1 mA
1 mA
10 mA
50 mA
100 mA
150 mA
01
2
3
4
5
6
V_IN [V]
(c) Output current (IOUT) vs.Output voltage (VOUT)
5.2
5.1
5.0
4.9
4.8
4.7
4.60
VVVV_IIIINNNN
=
=
=
=
1.5
2.0
3.0
4.0
V
V
V
V
50 100 150 200 250 300 350 400 450
I_OUT [mA]
Condition 12 S-8352A50MC
(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
IIIII_{OOOOOUUUUUTTTTT}
=
=
=
=
=
0.1 mA
1 mA
10 mA
50 mA
100 mA
0
1
23
4
56
V_IN [V]
(c) Output current (IOUT) vs.Output voltage (VOUT)
5.2
5.1
5.0
4.9
4.8
4.7
4.6
0
VVV_IIINNN===234...000
V
V
V
50 100 150 200 250 300 350 400 450
I_OUT [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
IIIIIIOOOOOOUUUUUU
T
T
T
T
T
T
=
=
=
=
=
=
0.1 mA
1 mA
10 mA
50 mA
100 mA
150 mA
0 1 23 4 56
VIN [V]
(d) Output current (IOUT) vs. Efficiency (η)
90
80
70
60
50
0.01 0.1
1
10
I_OUT [mA]
VVV_IIINNN
=
=
=
2.0
3.0
4.0
V
V
V
100 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
1
2
IIIII_{OOOOOUUUUUTTTTT}
=
=
=
=
=
0.1 mA
1 mA
10 mA
50 mA
100 mA
34 56
V_IN [V]
(d) Output current (IOUT) vs. Efficiency (η)
90
80
70
60
50
0.01 0.1
1
10
I_OUT [mA]
VV_IINN
=
=
3.0
4.0
V
V
100 1000
41