HIGH RIPPLE-REJECTION WLP PACKAGE LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.2.1_00
S-L2985 Series
(7) Ripple rejection
S-L2985B15 (Ta = 25°C)
S-L2985B30 (Ta = 25°C)
VIN = 2.5 V, COUT = 0.47 μF
VIN = 4.0 V, COUT = 0.47 μF
100
100
50 mA
50 mA
80
80
IOUT = 1 mA
IOUT = 1 mA
30 mA
60
40
20
0
60
40
20
0
30 mA
100
1k
10k
100k
1M
10
100
10k
Frequency [Hz]
1M
10
1k
100k
Frequency [Hz]
S-L2985B50 (Ta = 25°C)
VIN = 6.0 V, COUT = 0.47 μF
100
80
50 mA
60
IOUT = 1 mA
30 mA
40
20
0
10
100
1k
10k
100k
1M
Frequency [Hz]
Seiko Instruments Inc.
17