S1112 Datasheet, PDF (17/30 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION AND LOW DROPOUT

HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.6.1_00
S-1112/1122 Series
 Characteristics (Typical Data)
Remark The following, which describes the S-1112 Series as the typical product, shows typical data common
to the S-1122 Series.
(1) Output Voltage vs. Output current (when load current increases)
S-1112B15 (Ta = 25°C)
S-1112B30 (Ta = 25°C)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
VIN = 1.8 V
100 200
6.5 V
300 400
2.5 V
500 600
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
VIN = 3.3 V
100 200
6.5 V
300 400
4.0 V
500 600
IOUT [mA]
S-1112B50 (Ta = 25°C)
6
5
4
VIN = 5.3 V
3
6.0 V
2
1
6.5 V
0
0 100 200 300 400 500 600
IOUT [mA]
(2) Output voltage vs. Input voltage
S-1112B15 (Ta = 25°C)
IOUT [mA]
Remark In determining the output current, attention
should be paid to the following.
1) The minimum output current value and
footnote *5 of Table 7 in the “ Electrical
Characteristics”
2) The package power dissipation
S-1112B30 (Ta = 25°C)
1.6
1.5
1.4
1.3
IOUT = 1 mA
1.2
30 mA
50 mA
1.1
1.0
1.0
1.5 2.0
2.5
3.0
3.5
VIN [V]
S-1112B50 (Ta = 25°C)
3.1
3.0
2.9
2.8
IOUT = 1 mA
2.7
30 mA
50 mA
2.6
2.5
2.5
3.0 3.5
4.0
4.5
5.0
VIN [V]
5.5
5.0
4.5
4.0 ^{IOUT = 1 mA}
3.5
50 mA
3.0
30 mA
2.5
2.0
3.0 4.0
5.0
6.0
7.0
VIN [V]
Seiko Instruments Inc.
17