S-8353A20MC-IQFT2X Datasheet, PDF (32/49 Pages) Seiko Instruments Inc – BUILT-IN TRANSISTOR SWITCHING REGULATOR

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.0_01
4. Examples of Transient Response Characteristics (Ta = 25°C, 250 kHz, S-8354H33)
(1) Power-On (VIN : 0 V → 2.0 V)
IOUT = 1 mA
IOUT = 50 mA
2
2
0
4
0
2
0
t [1 ms / div]
(2) ON/OFF Pin Response ( V_{ON/ OFF} : 0 V → 2.0 V, VIN = 2 V)
IOUT = 1 mA
4
2
0
t [1 ms / div]
IOUT = 50 mA
2
0
4
2
0
t [1 ms / div]
(3) Load Fluctuations (VIN = 1.98 V)
100 μA → 50 mA
50 mA
100 μA
V_OUT
[0.05 V / div]
2
0
50 mA
100 μA
4
2
0
t [1 ms / div]
50 mA → 100 μA
t [200 μs / div]
(4) Input Voltage Fluctuations (IOUT = 50 mA)
VIN = 1.98 V → 2.64 V
2.64
1.98
V_OUT
[0.02 V / div]
t [100 μs / div]
V_OUT
[0.05 V / div]
2.64
1.98
V_OUT
[0.04 V / div]
t [5 ms / div]
VIN = 2.64 V → 1.98 V
t [100 μs / div]
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