S1142A Datasheet, PDF (25/32 Pages) Seiko Instruments Inc – HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION

HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_00
S-1142A/B Series
3. Transient response characteristics of ON / OFF pin (Ta = +25°C)
3. 1 V_OUT = 3.3 V
V_IN = 13.5 V, C_L = 10 μF, C_IN = 0.1 μF,
I_OUT = 100 mA, V_{ON / OFF} = 0 V → 13.5 V
15
18
12
12
9 VON/OFF
6
6
0
3
6
VOUT
0
12
3
500
18
0 500 1000 1500 2000
t [μs]
3. 2 V_OUT = 5.0 V
V_IN = 13.5 V, C_L = 10 μF, C_IN = 0.1 μF,
I_OUT = 100 mA, V_{ON / OFF} = 0 V → 13.5 V
15
18
12
12
9 VON/OFF
6
6
0
3
6
VOUT
0
12
3
500
18
0 500 1000 1500 2000
t [μs]
4. Load transient response characteristics dependent on capacitance (Ta = +25°C)
4. 1 V_OUT = 5.0 V
V_IN = 13.5 V, C_IN = 0.1 μF, I_OUT = 50 mA → 100 mA
0.5
V_IN = 13.5 V, C_IN = 0.1 μF, I_OUT = 100 mA → 50 mA
0.5
0.4
0.4
0.3
0.3
0.2
0.2
0.1
0.1
0
0
20 40 60 80 100
CL [μF]
0
0
20 40 60 80 100
CL [μF]
5. Input transient response characteristics dependent on capacitance (Ta = +25°C)
5. 1 V_OUT = 5.0 V
V_IN = 7.0 V → 12.0 V, t_r = 5.0 μs, C_IN = 0.1 μF, I_OUT = 30 mA
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
20 40 60 80 100
CL [μF]
V_IN = 12.0 V → 7.0 V, t_r = 5.0 μs, C_IN = 0.1 μF, I_OUT = 30 mA
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
20 40 60 80 100
CL [μF]
Seiko Instruments Inc.
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