S-8365AAABA-M5T1Y2 Datasheet, PDF (43/63 Pages) Seiko Instruments Inc – PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER

STEP-UP, SUPER-SMALL PACKAGE, 1.2 MHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
Rev.2.1_01
S-8365/8366 Series
3.11 Load fluctuations (VOUT = 5.0 V, VIN = 3.3 V, IOUT = 0.1 mA → 300 mA → 0.1 mA, PWM control, Ta = 25°C)
(1) fOSC = 1.2 MHz, IOUT = 0.1 mA → 300 mA S-8365AABBA
5.60
1600
5.40
1400
5.20
5.00
VOUT
1200
1000
4.80
800
4.60
600
4.40
IOUT
400
4.20
200
4.00
0
0.0 0.2 0.4 0.6 0.8 1.0
t [ms]
(2) fOSC = 1.2 MHz, IOUT = 300 mA → 0.1 mA S-8365AABBA
5.60
1600
5.40
1400
5.20
1200
5.00
4.80
VOUT
1000
800
4.60
600
4.40
400
4.20
4.00
0
IOUT
200
0
5 10 15 20 25 30 35 40
t [ms]
(3) fOSC = 600 kHz, IOUT = 0.1 mA → 300 mA S-8365ABBBA
5.60
1600
5.40
1400
5.20
5.00
VOUT
1200
1000
4.80
800
4.60
600
4.40
IOUT
400
4.20
200
4.00
0
0.0 0.2 0.4 0.6 0.8 1.0
t [ms]
(4) fOSC = 600 kHz, IOUT = 300 mA → 0.1 mA S-8365ABBBA
5.60
1600
5.40
1400
5.20
1200
5.00
4.80
VOUT
1000
800
4.60
600
4.40
400
4.20
4.00
0
IOUT
200
0
5 10 15 20 25 30 35 40
t [ms]
3.12 Load fluctuations (VOUT = 5.0 V, VIN = 3.3 V, IOUT = 0.1 mA → 300 mA → 0.1 mA, PWM / PFM switching control, Ta = 25°C)
(1) fOSC = 1.2 MHz, IOUT = 0.1 mA → 300 mA S-8366AABBA
5.60
1600
5.40
1400
5.20
5.00
VOUT
1200
1000
4.80
800
4.60
600
4.40
4.20
IOUT
400
200
4.00
0
0.0 0.2 0.4 0.6 0.8 1.0
t [ms]
(2) fOSC = 1.2 MHz, IOUT = 300 mA → 0.1 mA S-8366AABBA
5.60
1600
5.40
1400
5.20
1200
5.00
4.80
VOUT
1000
800
4.60
600
4.40
400
4.20
4.00
0
IOUT
200
0
5 10 15 20 25 30 35 40
t [ms]
(3) fOSC = 600 kHz, IOUT = 0.1 mA → 300 mA S-8366ABBBA
5.60
1600
5.40
1400
5.20
5.00
VOUT
1200
1000
4.80
800
4.60
600
4.40
IOUT
400
4.20
200
4.00
0
0.0 0.2 0.4 0.6 0.8 1.0
t [ms]
(4) fOSC = 600 kHz, IOUT = 300 mA → 0.1 mA S-8366ABBBA
5.60
1600
5.40
1400
5.20
5.00
VOUT
1200
1000
4.80
800
4.60
600
4.40
400
4.20
4.00
IOUT
200
0
0 10 20 30 40 50
t [ms]
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