Typical operating characteristics – Rainbow Electronics MAX15034 User Manual
Page 5
MAX15034
Configurable, Single-/Dual-Output, Synchronous
Buck Controller for High-Current Applications
OSCILLATOR FREQUENCY vs. R
T
MAX15034 toc01
R
T
(k
Ω)
OSCILLATOR FREQUENCY (kHz)
900
800
700
600
500
400
300
200
100
100
1000
10,000
10
0
1000
C
DH_
= C
DL_
= 0
SUPPLY CURRENT
vs. TEMPERATURE AND FREQUENCY
(V
IN
= 5V)
MAX15034 toc02a
TEMPERATURE (
°C)
SUPPLY CURRENT (mA)
110
95
-25 -10 5
35 50 65
20
80
2
4
6
8
10
12
14
16
0
-40
125
C
DH_
= C
DL_
= 0
f
SW
= 1MHz
f
SW
= 250kHz
f
SW
= 500kHz
f
SW
= 125kHz
SUPPLY CURRENT
vs. TEMPERATURE AND FREQUENCY
(V
IN
= 12V)
MAX15034 toc02b
TEMPERATURE (
°C)
SUPPLY CURRENT (mA)
110
95
-25 -10 5
35 50 65
20
80
2
4
6
8
10
12
14
16
0
-40
125
C
DH_
= C
DL_
= 0
f
SW
= 1MHz
f
SW
= 250kHz
f
SW
= 500kHz
f
SW
= 125kHz
SUPPLY CURRENT
vs. TEMPERATURE AND FREQUENCY
(V
IN
= 24V)
MAX15034 toc02c
TEMPERATURE (
°C)
SUPPLY CURRENT (mA)
110
95
-25 -10 5
35 50 65
20
80
2
4
6
8
10
12
14
16
0
-40
125
C
DH_
= C
DL_
= 0
f
SW
= 1MHz
f
SW
= 250kHz
f
SW
= 500kHz
f
SW
= 125kHz
SUPPLY CURRENT
vs. OSCILLATOR FREQUENCY
MAX15034 toc03
FREQUENCY (kHz)
SUPPLY CURRENT (mA)
1800
1600
400 600 800
1200
1000
1400
7
8
9
10
11
12
13
14
6
200
2000
C
DH_
= C
DL_
= 0
V
IN
= 24V
V
IN
= 5V
V
IN
= 12V
SUPPLY CURRENT
vs. DRIVER LOAD CAPACITANCE
MAX15034 toc04
C
LOAD
(nF)
SUPPLY CURRENT (mA)
25
20
15
10
5
10
20
30
40
50
60
70
80
90
100
0
0
30
C
LOAD
= C
DH_
= C
DL_
REG LOAD REGULATION
MAX15034 toc05
I
REG
(mA)
V
REG
(V)
90
80
70
60
50
40
30
20
10
4.95
5.00
5.05
5.10
4.90
0
100
V
IN
= 12V
V
IN
= 24V
V
IN
= 5.5V
REG LINE REGULATION
MAX15034 toc06
V
IN
(V)
V
REG
(V)
23
21
19
17
15
13
11
9
7
4.98
5.00
5.02
5.04
5.06
5.08
5.10
4.96
5
I
REG
= 0
I
REG
= 60mA
OUTPUT LOAD-TRANSIENT RESPONSE
MAX15034 toc07
2ms/div
10A/div
I
OUT
V
OUT
100mV/div
AC-COUPLED
20A
Typical Operating Characteristics
(Circuit of Figure 6, T
A
= +25°C, unless otherwise noted. V
IN
= 12V, V
OUT1
= 0.8V, V
OUT2
= 1.3V, f
SW
= 500kHz per phase.)
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