S-8337AAAA-P8T1G Datasheet, PDF (32/51 Pages) Seiko Instruments Inc – SWITCHING REGULATOR CONTROLLER

STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8337/8338 Series
Rev.4.0_01
4. 3 Load fluctuations (VOUT = 9.2 V, VIN = 3.3 V, Ta = 25°C, RZ = 200 kΩ, CZ = 0.01 μF)
(1) fOSC = 1133 kHz, IOUT = 0.1 mA→100 mA
I_OUT
100 mA
10.0
9.8
(2) fOSC = 1133 kHz, IOUT = 100 mA→0.1 mA
I_OUT
100 mA
0.1 mA
VOUT
[0.2 V/div]
9.6
0.1 mA
9.4
9.2
VOUT
[0.2 V/div]
9.0
–20
–10
0
10
time [ms]
8.8
20
–20
–10
0
10
time [ms]
(3) fOSC = 700 kHz, IOUT = 0.1 mA→100 mA
I_OUT
100 mA
0.1 mA
VOUT
[0.2 V/div]
–20
–10
0
10
time [ms]
10.0
9.8
9.6
9.4
9.2
9.0
8.8
20
(4) fOSC = 700 kHz, IOUT = 100 mA→0.1 mA
I_OUT
100 mA
0.1 mA
VOUT
[0.2 V/div]
–20
–10
0
10
time [ms]
(5) fOSC = 286 kHz, IOUT = 0.1 mA→100 mA
I_OUT
100 mA
0.1 mA
VOUT
[0.2 V/div]
–20
–10
0
10
time [ms]
10.0
9.8
9.6
9.4
9.2
9.0
8.8
20
(6) fOSC = 286 kHz, IOUT = 100 mA→0.1 mA
I_OUT
100 mA
0.1 mA
VOUT
[0.2 V/div]
–20
–10
0
10
time [ms]
10.0
9.8
9.6
9.4
9.2
9.0
8.8
20
10.0
9.8
9.6
9.4
9.2
9.0
8.8
20
10.0
9.8
9.6
9.4
9.2
9.0
8.8
20
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