sc1452 Semtech Corporation, sc1452 Datasheet - Page 12

• Manufacturer Part Number: sc1452
• Description: Sc1452 Dual 150 Ma Ldo Regulator With Programmable Reset
• Manufacturer: Semtech Corporation

POWER MANAGEMENT
Typical Characteristics (Cont.)
2006 Semtech Corp.
75
70
65
60
55
50
45
40
35
30
25
0.01
0.1
Output Spectral Noise Density vs. Frequency
0.01
10
1
0.01
V
C
C
I
T
PSRR vs. Frequency vs. Output Voltage
OUT
J
IN
IN
BYP
C
C
C
C
C
= 25°C
BYP
BYP
BYP
BYP
BYP
= V
= C
= 1mA
= 10nF
OUT
= 100pF
= 1nF
= 10nF
= 100nF
= 1µF
OUT
+ 1V
= 1µF
0.1
vs. Bypass Capacitance
0.1
(C
BYP
Top to bottom:
V
V
V
V
V
1
1
OUT
OUT
OUT
OUT
OUT
= 10nF)
f (kHz)
= 1.8V
= 2.5V
= 2.8V
= 3.0V
= 3.3V
f (kHz)
10
10
100
100
V
V
I
C
C
T
OUT
OUT
IN
J
IN
OUT
= 25°C
= 2.8V
= 1µF
= 50mA
= 1.8V
= 2.2µF
1000
1000
12
75
70
65
60
55
50
45
40
35
30
25
0.001
0.01
Output Spectral Noise Density vs. Frequency
0.01
0.1
10
1
0.01
V
C
C
I
T
PSRR vs. Frequency vs. Output Voltage
OUT
J
IN
IN
BYP
= 25°C
V
V
C
C
C
T
= V
= C
= 1mA
OUT
IN
J
IN
BYP
OUT
= 100nF
= 25°C
OUT
= 2.8V
= 1µF
OUT
= 1.8V
= 10nF
= 2.2µF
+ 1V
= 1µF
0.1
0.1
vs. Output Current
(C
Top to bottom:
V
V
V
V
V
BYP
OUT
OUT
OUT
OUT
OUT
1
= 1.8V
= 2.5V
= 2.8V
= 3.0V
= 3.3V
= 100nF)
1
f (kHz)
f (kHz)
10
10
www.semtech.com
SC1452
Top to bottom:
I
I
I
I
100
OUT
OUT
OUT
OUT
100
= 150mA
= 100mA
= 50mA
= 1mA
1000
1000