S-8520A20MC-AVFT2X Datasheet, PDF (29/44 Pages) Seiko Instruments Inc – SWITCHING REGULATOR CONTROLLER

STEP-DOWN, PWM CONTROL or PWM / PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
Rev.9.0_01
S-8520/8521 Series
2. Transient Response Characteristics
2. 1 Power-on (IOUT: no load)
(1) S-8520/8521C30MC
(V_IN = 0 V→3.6 V)
10 V
10 V
V_IN
[2.5 V/div]
V_IN
[2.5 V/div]
0V
3V
V_OUT
[1 V/div]
0V
t [2 ms/div]
0V
3V
V_OUT
[1 V/div]
0V
(2) S-8520/8521A30MC
10 V
V_IN
[2.5 V/div]
(V_IN = 0 V→3.6 V)
10 V
V_IN
[2.5 V/div]
0V
3V
V_OUT
[1 V/div]
0V
t [1 ms/div]
0V
3V
V_OUT
[1 V/div]
0V
(3) S-8520/8521E33MC
10 V
V_IN
[2.5 V/div]
(V_IN = 0 V→4.0 V)
10 V
V_IN
[2.5 V/div]
0V
3V
V_OUT
[1 V/div]
0V
t [1 ms/div]
0V
3V
V_OUT
[1 V/div]
0V
(V_IN = 0 V→9.0 V)
t [2 ms/div]
(V_IN = 0 V→9.0 V)
t [1 ms/div]
(V_IN = 0 V→9.0 V)
t [1 ms/div]
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