AME, Inc.
AME8750
PSRR vs. Frequency
60
Low-Dropout
150mA / 150mA Dual CMOS Regulator
Line Transient
Bypass
50
PSRR (dB)
40
30
20
10
0
10
100
1000
10000
100000
1000000
V
out
V
IN
=2.9V
V
OUT
=1.8V
I
LOAD
=50mA
Frequency (Hz)
50µs/DIV
Channel-to-Channel Isolation vs Frequency
100
Load Transient
V
I N
=4.3V
I
LOAD
= 0 to 150mA
Channel-to-Channel Isolation
(dB)
V
out
10
V
IN
=5V
R
LOAD
=50Ω
1
0.01
0.1
1
10
100
0
10µs/DIV
Frequency (KHz)
Output Noise Spectral Density
10
Load Transient Near Dropout
C
BP
=0µF
I
OUT
=1,50,100,150mA
Noise(µV/
√
Hz)
V
OUT
1
V
IN
=V
OUT
+0.1V
0.1
1
10
100
0
Frequency(kHz)
10µs/ DIV
100mA/DIV
I
LOAD
C
BP
=0.01µF
I
OUT
=1,50,100,150mA
20mV/DIV
(AC-Coupled)
100mA/DIV
I
LOAD
20mV/DIV
(AC-Coupled)
20mV/DIV
(AC-Coupled)
3.5V 4.5V
1V/DIV
No-Bypass
V
IN
9
AKM [ ASAHI KASEI MICROSYSTEMS ]
