Typical operating characteristics (continued) – Rainbow Electronics MAX8668 User Manual
Page 6
MAX8667/MAX8668
1.5MHz Dual Step-Down DC-DC Converters
with Dual LDOs and Individual Enables
6
_______________________________________________________________________________________
10
μs/div
OUT2 LOAD TRANSIENT
V
OUT2
I
OUT2
200mV/div
(AC-COUPLED)
500mA/div
500mA/div
MAX8667/88 toc17
I
L2
600mA
10mA
10mA
10
μs/div
OUT3 LOAD TRANSIENT
V
OUT3
I
OUT3
50mV/div
(AC-COUPLED)
200mA/div
MAX8667/88 toc18
300mA
0mA
0mA
10
μs/div
OUT4 LOAD TRANSIENT
V
OUT4
I
OUT4
50mV/div
(AC-COUPLED)
200mA/div
MAX8667/88 toc19
300mA
0mA
0mA
10
μs/div
OUT1 LIGHT-LOAD SWITCHING
WAVEFORMS
V
OUT1
V
LX1
I
L1
20mV/div
MAX8667/88 toc20
2V/div
100mA/div
500
μA LOAD
40
μs/div
OUT2 LIGHT-LOAD SWITCHING
WAVEFORMS
V
OUT2
V
LX2
I
L2
20mV/div
MAX8667/88 toc21
2V/div
500mA/div
500
μA LOAD
400ns/div
OUT1 HEAVY-LOAD SWITCHING
WAVEFORMS
V
OUT1
V
LX1
I
L1
20mV/div
MAX8667/88 toc22
2V/div
500mA/div
500
μA LOAD
Typical Operating Characteristics (continued)
(V
IN12
= V
IN34
= 3.6V, circuit of Figure 4, V
OUT1
= 1.2V, V
OUT2
= 1.8V, V
OUT3
= 2.8V, V
OUT4
= 2.8V, T
A
= +25°C, unless otherwise noted.)