S-8365AAABA-M5T1Y2 Datasheet, PDF (40/63 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
S-8365/8366 Series
Rev.2.1_01
3.5 Power supply voltage fluctuations (VOUT = 5.0 V, IOUT = 1 mA, PWM control, Ta = 25°C)
(1) fOSC = 1.2 MHz, VIN = 2.8 V → 3.8 V S-8365AABBA
5.05
12
5.00
10
VOUT
4.95
8
4.90
6
4.85
VIN
4
4.80
2
4.75
0
0
2
4
6
8
10
t [ms]
(2) fOSC = 1.2 MHz, VIN = 3.8 V → 2.8 V S-8365AABBA
5.05
12
5.00
10
VOUT
4.95
8
4.90
6
4.85
VIN
4
4.80
2
4.75
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
t [ms]
(3) fOSC = 600 kHz, VIN = 2.8 V → 3.8 V S-8365ABBBA
5.15
12
5.10
10
5.05
VOUT
8
5.00
6
4.95
VIN
4
4.90
2
4.85
0
0
2
4
6
8 10
t [ms]
(4) fOSC = 600 kHz, VIN = 3.8 V → 2.8 V S-8365ABBBA
5.15
12
5.10
10
5.05
VOUT
8
5.00
6
4.95
VIN
4
4.90
2
4.85
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
t [ms]
3.6 Power supply voltage fluctuations (VOUT = 5.0 V, IOUT = 1 mA, PWM / PFM switching control, Ta = 25°C)
(1) fOSC = 1.2 MHz, VIN = 2.8 V → 3.8 V S-8366AABBA
5.15
12
5.10
10
5.05
8
VOUT
5.00
6
4.95
4
VIN
4.90
2
4.85
0
0
2
4
6
8
10
t [ms]
(2) fOSC = 1.2 MHz, VIN = 3.8 V → 2.8 V S-8366AABBA
5.15
12
5.10
10
5.05
8
5.00
VOUT
6
4.95
VIN
4
4.90
2
4.85
0
0.0 0.4 0.8 1.2 1.6 2.0
t [ms]
(3) fOSC = 600 kHz, VIN = 2.8 V → 3.8 V S-8366ABBBA
5.15
12
5.10
10
5.05
VOUT
8
5.00
6
4.95
4
VIN
4.90
2
4.85
0
0
2
4
6
8
10
t [ms]
(4) fOSC = 600 kHz, VIN = 3.8 V → 2.8 V S-8366ABBBA
5.15
12
5.10
10
5.05
VOUT
8
5.00
6
4.95
VIN
4
4.90
2
4.85
0
0.0 0.4 0.8 1.2 1.6 2.0
t [ms]
40