MAX15023 Maxim Integrated Products, MAX15023 Datasheet - Page 6

• Manufacturer Part Number: MAX15023
• Description: Dual-Output Synchronous Buck Controller
• Manufacturer: Maxim Integrated Products

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Wide 4.5V to 28V Input, Dual-Output
Synchronous Buck Controller
(Supply = IN = 12V, unless otherwise noted. See Typical Application Circuit of Figure 6.)
6
210
180
150
120
90
60
30
_______________________________________________________________________________________
0
200
230
225
220
215
210
205
200
V
IN
300
= V
-40
vs. SWITCHING FREQUENCY
CC
C
SWITCHING FREQUENCY (kHz)
DL_
400
= 5V
C
I
IN
DL
= C
LOAD TRANSIENT ON OUT1
-15
+ I
= C
500
DH_
SHUTDOWN CURRENT
vs. TEMPERATURE
VCC
DH
TEMPERATURE (°C)
= 10nF
= 0nF
600
C
CURRENT
10
DL_
10μs/div
C
700
= C
DL_
DH_
= C
35
800
= 4.7nF
DH_
= 1nF
900
60
MAX15023 toc15
1000
85
V
50mV/div
V
100mV/div
I
5A/div
OUT1
OUT2
OUT1
1.250
1.225
1.200
1.175
1.150
1.125
1.100
1.075
1.050
1.025
1.000
Typical Operating Characteristics (continued)
(AC-COUPLED)
(AC-COUPLED)
EN_ TURN-ON AND TURN-OFF THRESHOLD
-40
-15
vs. TEMPERATURE
TEMPERATURE (°C)
EN_ FALLING
EN_ RISING
10
35
300
270
240
210
180
150
120
90
60
30
0
60
5
10
SOURCE CURRENT LIMIT
CURRENT-LIMIT THRESHOLD
85
15 20 25 30 35
LOAD TRANSIENT ON OUT2
vs. R
R
10μs/div
LIM
60
58
56
54
52
50
48
46
44
42
40
38
-40
(kΩ)
LIM
SINK CURRENT LIMIT
40 45
-15
MAX15023 toc16
vs. TEMPERATURE
50
TEMPERATURE (°C)
LIM_ CURRENT
55
I
10
LIM2
60
V
100mV/div
V
200mV/div
I
2A/div
OUT2
OUT1
OUT2
I
LIM1
35
(AC-COUPLED)
(AC-COUPLED)
60
85