MAX8556 MAXIM [Maxim Integrated Products], MAX8556 Datasheet - Page 5

• Manufacturer Part Number: MAX8556
• Description: 4A Ultra-Low-Input-Voltage LDO Regulators
• Manufacturer: MAXIM [Maxim Integrated Products]

(V
EN
= V
IN
= +1.8V, V
V
I
100
OUT
OUT
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
FOLDBACK CURRENT-LIMIT WAVEFORMS
0
1
_______________________________________________________________________________________
EXPOSED PADDLE TEMPERATURE
OUT
vs. AMBIENT TEMPERATURE
17
AMBIENT TEMPERATURE (°C)
= +1.5V, I
PSRR vs. FREQUENCY
10
DATA TAKEN USING
MAX8556 EVALUATION KIT
FREQUENCY (kHz)
34
100µs/div
OUT
51
V
I
= 4A, C
LOAD
100
IN
= 2.5V
= 1A
68
MAX8556 toc15
OUT
Typical Operating Characteristics (continued)
1000
85
= 20µF, C
500mV/div
5A/div
4A Ultra-Low-Input-Voltage
IN
= 20µF, and T
0.510
0.505
0.500
0.495
0.490
V
OUT
V
8.0
7.8
7.6
7.4
7.2
7.0
6.8
6.6
6.4
6.2
6.0
I
IN
IN
A
-40
-40
= +25°C, unless otherwise noted.)
FB REGULATION vs. TEMPERATURE
CURRENT-LIMIT THRESHOLD
-15
-15
STARTUP WAVEFORMS
vs. TEMPERATURE
TEMPERATURE (°C)
TEMPERATURE (°C)
LDO Regulators
10
10
100µs/div
I
35
LOAD
35
= 50mA
60
60
MAX8556 toc12
85
85
1V/div
2V/div
2A/div
5