S-8337AAAA-P8T1G Datasheet, PDF (31/51 Pages) Seiko Instruments Inc – SWITCHING REGULATOR CONTROLLER

STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER
Rev.4.0_01
S-8337/8338 Series
4. 2 Responses of shutdown pin (VOUT = 9.2 V, VON/OFF = 0 V→3.3 V)
(1) fOSC = 1133 kHz, IOUT = 0 mA, tSS = 10 ms
12
(2) fOSC = 1133 kHz, IOUT = 100 mA, tSS = 10 ms
12
4
VON/OFF
[V]
2
0
8 _VOUT
4 [V]
0
4
VON/OFF
[V]
2
0
8 _VOUT
4 [V]
0
–5
0
5
10
15
time [ms]
(3) fOSC = 700 kHz, IOUT = 0 mA, tSS = 10 ms
4
VON/OFF
[V]
2
0
20
–5
0
5
10
15
20
time [ms]
12
8 _VOUT
4 [V]
0
(4) fOSC = 700 kHz, IOUT = 100 mA, tSS = 10 ms
4
VON/OFF
[V]
2
0
12
8 _VOUT
4 [V]
0
–5
0
5
10
15
time [ms]
(5) fOSC = 286 kHz, IOUT = 0 mA, tSS = 10 ms
4
VON/OFF
[V]
2
0
20
–5
0
5
10
15
20
time [ms]
12
8 _VOUT
4 [V]
0
(6) fOSC = 286 kHz, IOUT = 100 mA, tSS = 10 ms
4
VON/OFF
[V]
2
0
12
8 _VOUT
4 [V]
0
–5
0
5
10
15
20
time [ms]
–5
0
5
10
15
20
time [ms]
31