S-1137 Datasheet, PDF (24/47 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR

HIGH RIPPLE-REJECTION LOW DROPOUT SOFT-START FUNCTION CMOS VOLTAGE REGULATOR
S-1137 Series
Rev.2.1_01
(3) Dropout Voltage vs. Output Current
VOUT = 1.2 V
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
0
Ta = 85°C
Ta = 25°C
Ta = −40°C
50 100 150 200 250 300
IOUT [mA]
VOUT = 3.5 V
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
0
Ta = 85°C
Ta = 25°C
Ta = −40°C
50 100 150 200 250 300
IOUT [mA]
(4) Dropout Voltage vs. Set Output Voltage
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
1.0
IOUT = 300 mA
150 mA
100 mA
50 mA
30 mA 10 mA
1 mA
0.1 mA
1.5 2.0 2.5 3.0 3.5
VOUT(S) [V]
VOUT = 2.5 V
0.20
0.18
0.16
Ta = 85°C
0.14
Ta = 25°C
0.12
0.10
Ta = −40°C
0.08
0.06
0.04
0.02
0
0 50 100 150 200 250 300
IOUT [mA]
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