S-8363B-I6T1U2 Datasheet, PDF (35/50 Pages) Seiko Instruments Inc – PWM/PFM SWITCHABLE SWITCHING REGULATOR

STEP-UP, SUPER-SMALL PACKAGE, 1.2 MHz PWM/PFM SWITCHABLE SWITCHING REGULATOR
Rev.2.0_01
S-8363 Series
4. Examples of Transient Response Characteristics
Unless otherwise specified, the used parts are those in Table 6 External Parts List.
4.1 At power-on (VOUT(S) = 3.3 V, VIN = 0 V → 0.9 V, Ta = +25°C)
(1) IOUT = 1 mA
4.0
VOUT
3.0
2.0
1.0
VIN
0
−0.8
0.2
1.2
2.2
3.2
Time [μs]
4.2 At power-on (VOUT(S) = 3.3 V, VIN = 0 V → 2.0 V, Ta = +25°C)
(1) IOUT = 1 mA
4.0
VOUT
(2) IOUT = 300 mA
4.0
3.0
3.0
VOUT
2.0
VIN
1.0
2.0
VIN
1.0
0
−0.8
0.2
1.2
2.2
3.2
Time [μs]
0
−0.8
0.2
1.2
2.2
3.2
Time [μs]
4.3 Power-off pin response (VOUT = 3.3 V, VIN = 0.9 V, VON/OFF = 0 V → 0.9 V, Ta = +25°C)
(1) IOUT = 1 mA
4.0
VOUT
3.0
2.0
1.0
VON/OFF
0
−0.8
0.2
1.2
2.2
3.2
Time [μs]
4.4 Power-off pin response (VOUT = 3.3 V, VIN = 2.0 V, VON/OFF = 0 V → 2.0 V, Ta = +25°C)
(1) IOUT = 1 mA
4.0
VOUT
(2) IOUT = 300 mA
4.0
VOUT
3.0
3.0
2.0
VON/OFF
1.0
2.0
VON/OFF
1.0
0
−0.8
0.2
1.2
2.2
3.2
Time [μs]
0
−0.8
0.2
1.2
2.2
3.2
Time [μs]
35