MAX8556 MAXIM [Maxim Integrated Products], MAX8556 Datasheet - Page 4

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

4A Ultra-Low-Input-Voltage
LDO Regulators
(V
4
EN
900
800
700
600
500
400
300
200
100
_______________________________________________________________________________________
0
= V
(AC-COUPLED)
-40
IN
GND CURRENT vs. TEMPERATURE
= +1.8V, V
-15
V
I
V
OUT
OUT
V
OUT
EN
TEMPERATURE (°C)
10
4A LOAD-TRANSIENT RESPONSE
OUT
ENABLE WAVEFORMS
= +1.5V, I
35
I
I
LOAD
LOAD
40µs/div
100µs/div
= 0A
= 2A
60
OUT
85
= 4A, C
MAX8556 toc07
MAX8556 toc09
OUT
Typical Operating Characteristics (continued)
90
80
70
60
50
40
30
20
10
0
= 20µF, C
50mV/div
2A/div
2V/div
1V/div
0
DROPOUT VOLTAGE vs. LOAD CURRENT
0.5
1.0
IN
LOAD CURRENT (A)
= 20µF, and T
1.5
2.0
(AC-COUPLED)
2.5
3.0
A
V
IN
= +25°C, unless otherwise noted.)
V
V
I
3.6V
I
= 1.5V
OUT
OUT
OUT
OUT
V
3.5
IN
4.0
2A LOAD-TRANSIENT RESPONSE
SHORT-CIRCUIT WAVEFORMS
(AC-COUPLED)
V
2.5V
1.8V
OUT
200µs/div
V
40µs/div
IN
LINE-TRANSIENT RESPONSE
MAX8556 toc08
MAX8556 toc10
100µs/div
50mV/div
1A/div
1V/div
2V/div
5A/div
MAX8556 toc06
10mV/div