Typical operating characteristics – Rainbow Electronics MAX5083 User Manual
Page 4
MAX5082/MAX5083
1.5A, 40V, MAXPower Step-Down
DC-DC Converters
4
_______________________________________________________________________________________
Typical Operating Characteristics
(V
IN
= 12V, see Figure 5 (MAX5082) and Figure 6 (MAX5083), T
A
= +25°C, unless otherwise noted.)
UNDERVOLTAGE LOCKOUT HYSTERESIS
vs. TEMPERATURE (MAX5082)
MAX5082/3 toc01
TEMPERATURE (
°C )
UNDERVOLTAGE LOCKOUT HYSTERESIS (V)
110
85
35
60
10
-15
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
-40
135
UNDERVOLTAGE LOCKOUT HYSTERESIS
vs. TEMPERATURE (MAX5083)
MAX5082/3 toc02
TEMPERATURE (
°C )
UNDERVOLTAGE LOCKOUT HYSTERESIS (V)
110
85
35
60
10
-15
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
-40
135
ON/OFF THRESHOLD HYSTERESIS
vs. TEMPERATURE
MAX5082/3 toc03
TEMPERATURE (
°C )
ON/OFF THRESHOLD HSYSTERESIS (V)
110
85
60
35
10
-15
0.05
0.10
0.15
0.20
0
-40
135
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE (MAX5082)
MAX5082/3 toc04
INPUT VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (
µ
A)
35
30
20
25
10
15
5
25
50
75
100
125
150
175
200
225
250
0
0
40
T
A
= +135
°C
T
A
= +25
°C
T
A
= +85
°C
T
A
= -40
°C
V
ON/OFF
= 0V
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE (MAX5083)
MAX5082/3 toc05
INPUT VOLTAGE (V)
SHUTDOWN SYPPLY CURRENT (
µ
A)
35
30
20
25
10
15
5
25
50
75
100
125
150
175
200
225
250
275
300
0
0
40
T
A
= +135
°C
T
A
= +25
°C
T
A
= +85
°C
T
A
= -40
°C
V
ON/OFF
= 0V
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE (MAX5082)
MAX5082/3 toc06
INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
35
30
5
10
15
20
25
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
0
40
T
A
= +135
°C
T
A
= +25
°C
T
A
= +85
°C
T
A
= -40
°C
OPERATING FREQUENCY
vs. TEMPERATURE
MAX5082/3 toc07
TEMPERATURE (
°C)
OPERATING FREQUENCY (kHz)
110
85
35
60
10
-15
242
244
246
248
250
252
254
256
258
260
240
-40
135
V
IN
= 4.5V
V
IN
= 40V
MAXIMUM DUTY CYCLE
vs. INPUT VOLTAGE (MAX5082)
MAX5082/3 toc08a
INPUT VOLTAGE (V)
MAXIMUM DUTY CYCLE (%)
35
30
20
25
10
15
5
82
84
86
88
90
92
94
96
98
100
80
0
40