S-8520A20MC-AVFT2X Datasheet, PDF (26/44 Pages) Seiko Instruments Inc – SWITCHING REGULATOR CONTROLLER

STEP-DOWN, PWM CONTROL or PWM / PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8520/8521 Series
Rev.9.0_01
(3) EXT pin output current “H” (IEXTH)-
Input voltage (VIN)
−60
−50
−40
Ta = −40°C
−30
Ta = +25°C
−20
−10
Ta = +85°C
02
4
6
8 10 12 14 16
V_IN [V]
(5) Soft start time (tSS)-Input voltage (VIN)
25
(f_osc = 60 kHz)
20
Ta = −40°C
Ta = +25°C
15
10
Ta = +85°C
5
02
4
6
8 10 12 14 16
V_IN [V]
10
(f_osc = 300 kHz)
8
Ta = −40°C
6
Ta = +85°C
4
Ta = +25°C
2
02
4
6
8 10 12 14 16
V_IN [V]
(4) EXT pin output current “L” (IEXTL)-
Input voltage (VIN)
60
50
Ta = −40°C
40
Ta = +25°C
30
Ta = +85°C
20
10
0
2 4 6 8 10 12 14 16
V_IN [V]
25
(f_osc = 180 kHz)
20
15
Ta = −40°C
Ta = +25°C
10
5
Ta = +85°C
02
4
6
8 10 12 14 16
V_IN [V]
26