S-8363B-I6T1U2 Datasheet, PDF (36/50 Pages) Seiko Instruments Inc – PWM/PFM SWITCHABLE SWITCHING REGULATOR

STEP-UP, SUPER-SMALL PACKAGE, 1.2 MHz PWM/PFM SWITCHABLE SWITCHING REGULATOR
S-8363 Series
Rev.2.0_01
4.5 Power supply voltage fluctuations (VOUT = 3.0 V, IOUT = 100 mA, Ta = +25°C)
(1) VIN = 1.98 V→2.64 V
(2) VIN = 2.64 V→1.98 V
3.5
6.0
3.5
3.4
VOUT
5.0
3.4
VOUT
3.3
4.0
3.3
3.2
VIN
3.0
3.2
3.1
2.0
3.1
VIN
3.0
−100 0
100 200 300
Time [μs]
1.0
400
3.0
−100 0
100 200 300
Time [μs]
6.0
5.0
4.0
3.0
2.0
1.0
400
4.6 Load fluctuations (VOUT = 3.3 V, VIN = 1.98 V, IOUT = 0.1 mA → 100 mA → 0.1 mA, Ta = +25°C)
(1) IOUT = 0.1 mA→100 mA
(2) IOUT = 100 mA→0.1 mA
3.5
500
3.5
3.4
400
3.4
VOUT
VOUT
3.3
300
3.3
3.2
200
3.2
3.1
IOUT
100
3.1
IOUT
3.0
0
−200 −100 0 100 200 300 400
Time [μs]
3.0
−2
0
2
4
Time [μs]
500
400
300
200
100
0
6
4.7 Load fluctuations (VOUT = 3.3 V, VIN = 1.98 V, IOUT = 100 mA → 200 mA → 100 mA, Ta = +25°C)
(1) IOUT = 100 mA→200 mA
(2) IOUT = 200 mA→100 mA
3.5
500
3.5
500
3.4
400
3.4
400
VOUT
VOUT
3.3
300
3.3
300
3.2
200
3.2
200
3.1
IOUT
100
3.1
IOUT
100
3.0
−100 0
100 200 300
Time [μs]
0
400
3.0
−100 0
100 200 300
Time [μs]
0
400
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