S-8365AAABA-M5T1Y2 Datasheet, PDF (38/63 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. Examples of Transient Response Characteristics
Unless otherwise specified, the used parts are those in Table 10 External Parts List.
3.1 At power-on (VOUT(S) = 5.0 V, VIN = 0 V → 3.3 V, PWM control, Ta = 25°C)
(1) fOSC = 1.2 MHz, IOUT = 1 mA S-8365AABBA
6.0
6.0
5.0
5.0
4.0
VOUT
4.0
3.0
VIN
3.0
2.0
2.0
1.0
0.0
0
IL
5
10
15
t [ms]
1.0
0.0
20
(2) fOSC = 1.2 MHz, IOUT = 600 mA S-8365AABBA
6.0
6.0
5.0
5.0
VOUT
4.0
4.0
3.0
VIN
3.0
2.0
IL
2.0
1.0
1.0
0.0
0
5
10
15
t [ms]
0.0
20
(3) fOSC = 600 kHz, IOUT = 1 mA S-8365ABBBA
6.0
6.0
5.0
VOUT
5.0
4.0
4.0
3.0
VIN
3.0
2.0
2.0
1.0
0.0
0
IL
5
10
15
t [ms]
1.0
0.0
20
(4) fOSC = 600 kHz, IOUT = 600 mA S-8365ABBBA
6.0
6.0
5.0
5.0
VOUT
4.0
4.0
3.0
VIN
3.0
2.0
IL
2.0
1.0
1.0
0.0
0
5
10
15
t [ms]
0.0
20
3.2 At power-on (VOUT(S) = 5.0 V, VIN = 0 V → 3.3 V, PWM / PFM switching control, Ta = 25°C))
(1) fOSC = 1.2 MHz, IOUT = 1 mA S-8366AABBA
6.0
6.0
5.0
VOUT
5.0
4.0
4.0
3.0
VIN
3.0
2.0
2.0
1.0
0.0
0
IL
5
10
15
t [ms]
1.0
0.0
20
(2) fOSC = 1.2 MHz, IOUT = 600 mA S-8366AABBA
6.0
6.0
5.0
5.0
VOUT
4.0
4.0
3.0
VIN
3.0
2.0
2.0
IL
1.0
1.0
0.0
0
5
10
15
t [ms]
0.0
20
(3) fOSC = 600 kHz, IOUT = 1 mA S-8366ABBBA
6.0
6.0
5.0
5.0
VOUT
4.0
4.0
3.0
VIN
3.0
2.0
2.0
1.0
0.0
0
IL
5
10
15
t [ms]
1.0
0.0
20
(4) fOSC = 600 kHz, IOUT = 600 mA S-8366ABBBA
6.0
6.0
5.0
5.0
VOUT
4.0
4.0
3.0
VIN
3.0
2.0
IL
2.0
1.0
1.0
0.0
0
5
10
15
t [ms]
0.0
20
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