c644ultrt Semtech Corporation, c644ultrt Datasheet - Page 7

• Manufacturer Part Number: c644ultrt
• Description: Light Management Unit With 4 Ldos And Sempulse Interface
• Manufacturer: Semtech Corporation

Typical Characteristics (continued)
-0.25
-0.75
0.25
0.75
-0.5
100
-10
-20
-30
-40
-50
-60
-70
0.5
80
60
40
20
-1
0
0
0
1
10
4.2
0
I
V
V
LDO2
LDO
IN
=3.7V, V
=1.8V, V
= 1mA, V
LDO Noise vs. Load Current — 1.8V
OUT
IN
3.9
PSRR vs. Frequency — 1.8V
20
LDO2
=3.7V, 25°C, 10Hz < f < 100kHz
=1.8V, I
Line Regulation (LDO2)
= 1.2V and 1.8V, 25°C
1.8V
1.2V
100
OUT
= 50mA
40
3.6
Frequency (Hz�
I
OUT
V
IN
(mA�
(V�
3.3
60
1000
3.0
80
10000
2.7
100
100
-10
-20
-30
-40
-50
-60
-70
80
-2
60
40
20
-3
-1
2
0
3
1
0
0
10
4.2
0
V
V
LDO
IN
=3.7V, V
I
LDOm
=2.8V, V
LDO Noise vs. Load Current — 2.8V
= 1mA, 25°C, V
OUT
3.9
IN
PSRR vs. Frequency — 2.8V
30
=3.7V, 25°C, 10Hz < f < 100kHz
=2.8V, I
Line Regulation (LDOm)
100
OUT
LDOm
= 50mA
3.6
60
Frequency (Hz�
= 2.8V, m = 1, 3, or 4
I
OUT
V
2.8V
IN
(mA�
(V�
3.3
90
1000
120
3.0
10000
2.7
150
7
7