MAX8664 Maxim Integrated Products, MAX8664 Datasheet - Page 5

• Manufacturer Part Number: MAX8664
• Description: Step-Down Controller
• Manufacturer: Maxim Integrated Products

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ENABLE
V
PRWGD
V
V
(Circuit of Figure 2, 600kHz, V
OUT1
OUT2
ENABLE WAVEFORMS (FIGURE 4)
V
V
PRWGD
PRWGD
V
V
V
OUT1
OUT1
OUT2
400μs/div
V
I
I
L1
IN
IN
Controller with Fast Transient Response
_______________________________________________________________________________________
SHORT-CIRCUIT WAVEFORMS
POWER-DOWN WAVEFORMS
IN
MAX8664 toc11
= 12V, V
10μs/div
Low-Cost, Dual-Output, Step-Down
1ms/div
5V/div
1V/div
1V/div
5V/div
OUT1
V
V
LX1
LX2
= 2.5V, V
I
I
L1
L2
Typical Operating Characteristics (continued)
MAX8664 toc14
MAX8664 toc09
OUT2
SWITCHING WAVEFORMS
2V/div
2A/div
5A/div
5V/div
10V/div
2V/div
2V/div
5V/div
= 1.8V, T
2μs/div
A
ENABLE
V
= +25°C, unless otherwise noted.)
PRWGD
V
V
V
V
OUT1
V
OUT1
OUT2
DH1
DL1
I
L1
MAX8664 toc12
ENABLE WAVEFORMS (FIGURE 2)
OVERVOLTAGE PROTECTION
10V/div
5A/div
10V/div
5A/div
20μs/div
1ms/div
605
604
603
602
601
600
599
598
597
596
595
-40
-20
MAX8664 toc15
MAX8664 toc10
FEEDBACK VOLTAGE
vs. TEMPERATURE
0
TEMPERATURE (°C)
10A/div
5V/div
10V/div
10V/div
5V/div
2V/div
2V/div
5V/div
20
40
60
NO LOAD
80
100
5