S-8333CAAA-I8T1U Datasheet, PDF (27/44 Pages) Seiko Instruments Inc – PWM CONTROL SWITCHING REGULATOR CONTROLLER

STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
Rev.4.2_01
S-8333 Series
4.2 Load fluctuations (VOUT = 9.2 V, VIN = 3.3 V, Ta = 25°C, RZ = 200 kΩ, CZ = 0.01 μF)
(1) fOSC = 1080 kHz, IOUT = 0.1 mA→100 mA
IOUT
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
(2) fOSC = 1080 kHz, IOUT = 100 mA→0.1 mA
IOUT
100 mA
0.1 mA
VOUT
[0.2 V/div]
20
10
0
10
time [ms]
(3) fOSC = 650 kHz, IOUT = 0.1 mA→100 mA
IOUT
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 = 650 kHz, IOUT = 100 mA→0.1 mA
IOUT
100 mA
0.1 mA
VOUT
[0.2 V/div]
20
10
0
10
time [ms]
(5) fOSC = 280 kHz, IOUT = 0.1 mA→100 mA
IOUT
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 = 280 kHz, IOUT = 100 mA→0.1 mA
IOUT
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
27