S-8351A50MC-J3JT2G Datasheet, PDF (30/51 Pages) Seiko Instruments Inc – STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER

STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER
S-8351/8352 Series
Rev.3.0_00
6. Temperature (Ta) vs. Oscillation Frequency (f_OSC)
140
S-8351A30MC
130
S-8351A50MC
120
110
100
90
80
−50 −25 0 25 50 75 100
Ta [°C]
7. Temperature (Ta) vs. Duty Ratio 1 (Duty1)
8. Temperature (Ta) vs. Duty Ratio 2 (Duty2)
80
55
S-8351A30MC
78
S-8351A50MC
53
76
51
74
72
70
−50 −25
0 25 50
Ta [°C]
75 100
49
47
45
−50
S-8351A30MC
S-8351A50MC
−25 0 25 50
Ta [°C]
75 100
9. Output Voltage (V_OUT) vs. Switching Current (I_SW) 10. Temperature (Ta) vs. Switching Current (I_SW)
Ta = 25°C
300
250
200
150
100
50
0
0123 4 567
V_OUT [V]
400
350
300
250
200
150
100
S-8351A30MC
50
S-8351A50MC
0
−50 −25 0 25 50
Ta [°C]
75 100
11. Output Voltage (V_OUT) vs. EXT Pin Output Current “H” (I_EXTH) 12. Temperature (Ta) vs. EXT Pin Output Current “H” (I_EXTH)
Ta = 25°C
35
30
25
20
15
10
5
0
01 234567
V_OUT [V]
40
30
20
10
0
−50
S-8352A30MC
S-8352A50MC
−25 0 25 50
Ta [°C]
75 100
30
Seiko Instruments Inc.