S-19243A12A-E8T1U Datasheet, PDF (42/74 Pages) Seiko Instruments Inc – CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION

FOR AUTOMOTIVE 125°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
S-19243xxxA Series
Rev.3.0_00
3. Transient response characteristics of ON / OFF pin (Ta = +25°C) (S-19243xxxA Series A / B / C / D type)
3. 1 V_OUT = 1.0 V
V_IN = 2.5 V, C_IN = C_L = 2.2 μF,
I_OUT = 100 mA, V_{ON / OFF} = 0 V → 2.5 V
5.00
3.0
3. 2 V_OUT = 3.0 V
V_IN = 4.0 V, C_IN = C_L = 2.2 μF,
I_OUT = 100 mA, V_{ON / OFF} = 0 V → 4.0 V
10.00
6.0
4.00
2.0
8.00
4.0
3.00
1.0
6.00
2.0
2.00
VON / OFF
1.00
0.0
1.0
4.00
VON / OFF
2.00
0.0
2.0
0.00 _VOUT
1.00
400 0
2.0
3.0
400 800 1200 1600 2000
0.00 _VOUT
2.00
400 0
4.0
6.0
400 800 1200 1600 2000
t [s]
t [s]
3. 3 V_OUT = 6.0 V
V_IN = 7.0 V, C_IN = C_L = 2.2 μF,
I_OUT = 100 mA, V_{ON / OFF} = 0 V → 7.0 V
20.00
9.0
16.00
6.0
12.00
3.0
8.00
VON / OFF
4.00
0.0
3.0
0.00 _VOUT
4.00
400 0
6.0
9.0
400 800 1200 1600 2000
t [s]
4. Soft-start time vs. Characteristics of operation ambient temperature
V_IN = 2.5 V, V_{ON / OFF} = 0 V → 2.5 V (V_OUT(S) < 1.5 V),
V_IN = V_OUT + 1.0 V, V_{ON / OFF} = 0 V → V_OUT + 1.0 V (1.5 V ≤ V_OUT(S)),
C_IN = C_L = 2.2 μF, C_SS = 10 nF
10.0
8.0
VOUT = 1.0 V
6.0
4.0 _{VOUT = 3.0 V VOUT = 6.0 V}
2.0
0.0
−40 −25 0
25 50 75 100 125 150
Ta [C]
5. Soft-start time vs. Characteristics of soft-start capacitance (Ta = +25°C)
V_IN = 2.5 V, V_{ON / OFF} = 0 V → 2.5 V (V_OUT(S) < 1.5 V),
V_IN = V_OUT + 1.0 V, V_{ON / OFF} = 0 V → V_OUT + 1.0 V (1.5 V ≤ V_OUT(S)),
C_IN = C_L = 2.2 μF
100.0
10.0
1.0
0.1
0.1
VOUT = 1.0 V
VOUT = 3.0 V
VOUT = 6.0 V
1.0
10.0 100.0
CSS [nF]
1000.0
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