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MAX15020ATP+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
MAX15020
2A, 40V Step-Down DC-DC Converter with
Dynamic Output-Voltage Programming
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V
IN
= 36V, Circuit of Figure 2, T
A
= +25°C, unless otherwise noted.)
UNDERVOLTAGE LOCKOUT HYSTERESIS
vs. TEMPERATURE
MAX15020 toc01
TEMPERATURE (°C)
UNDERVOLTAGE LOCKOUT HYSTERESIS
1108535 6010-15
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
MAX15020 toc02
TEMPERATURE (°C)
ON/OFF THRESHOLD HYSTERESIS (V)
1108535 6010-15
0.05
0.10
0.15
0.20
0
-40 135
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX15020 toc03
INPUT VOLTAGE (V)
SUPPLY CURRENT (μA)
302010
1
2
3
4
5
6
7
0
040
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX15020 toc04
INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
302010
2
4
8
6
10
12
14
16
0
040
OPERATING FREQUENCY
vs. TEMPERATURE
MAX15020 toc05
TEMPERATURE (°C)
OPERATING FREQUENCY (kHz)
1108535 6010-15
290
292
294
296
298
300
302
304
306
308
288
-40 135
MAXIMUM DUTY CYCLE
vs. INPUT VOLTAGE
MAX15020 toc06
INPUT VOLTAGE (V)
DUTY CYCLE (%)
302010
86
88
82
84
90
92
94
96
98
100
80
040
LOOP GAIN/PHASE
vs. FREQUENCY
MAX15020 toc07
FREQUENCY (kHz)
GAIN (dB)
PHASE (DEGREES)
100101
-40
-30
-20
-10
0
10
20
30
40
50
-50
-144
-108
-72
-36
0
36
72
108
144
180
-180
0.1 1000
PHASE
V
IN
= 37V, V
OUT
= 15V,
I
OUT
= 2.02A
GAIN
MAXIMUM LOAD CURRENT
vs. INPUT VOLTAGE
MAX15020 toc08
INPUT VOLTAGE (V)
LOAD CURRENT (A)
353020 2510 155
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
2.5
040
T
A
= -45°C
T
A
= +25°C
T
A
= +85°C
MAX15020
2A, 40V Step-Down DC-DC Converter with
Dynamic Output-Voltage Programming
_______________________________________________________________________________________
5
TURN-ON/TURN-OFF WAVEFORM
MAX15020 toc10
10ms/div
5V/div
0V
1V/div
0V
V
OUT
V
ON/OFF
V
IN
= 40V, R
LOAD
= 27Ω
REFOUT VOLTAGE vs. TEMPERATURE
MAX15020 toc11
TEMPERATURE (°C)
REFOUT VOLTAGE (V)
11085603510-15
0.97
0.99
1.01
1.03
1.05
0.95
-40 135
EFFICIENCY vs. LOAD CURRENT
MAX15020 toc12
OUTPUT CURRENT (A)
EFFICIENCY (%)
10.1
10
20
30
40
50
60
70
80
90
100
0
0.01 10
V
IN
= 40V
V
IN
= 24V
f
S
= 500kHz
V
OUT
= 3.3V
V
IN
= 12V
V
IN
= 7.5V
EFFICIENCY vs. LOAD CURRENT
MAX15020 toc13
OUTPUT CURRENT (A)
EFFICIENCY (%)
10.1
10
20
30
40
50
60
70
80
90
100
0
0.01 10
f
S
= 500kHz
V
IN
= 40V
V
OUT
= 30V
TURN-ON/TURN-OFF WAVEFORM
MAX15020 toc09
10ms/div
5V/div
0V
1V/div
0V
V
OUT
V
ON/OFF
V
IN
= 12V, R
LOAD
= 27Ω
Typical Operating Characteristics (continued)
(V
IN
= 36V, Circuit of Figure 2, T
A
= +25°C, unless otherwise noted.)
LOAD TRANSIENT
MAX15020 toc14
200μs/div
50mV/div
AC-COUPLED
2A
1A
I
OUT
V
OUT
V
IN
= 12V, V
OUT
= 3.3V
LOAD TRANSIENT
MAX15020 toc15
200μs/div
50mV/div
AC-COUPLED
1.2A
0.2A
V
OUT
I
OUT
V
IN
= 12V, V
OUT
= 3.3V
MAX15020
2A, 40V Step-Down DC-DC Converter with
Dynamic Output-Voltage Programming
6 _______________________________________________________________________________________
LIGHT-LOAD SWITCHING WAVEFORMS
MAX15020 toc18
1μs/div
20V/div
0V
1A/div
0A
I
LX
V
LX
I
LOAD
= 40mA
SWITCHING WAVEFORMS
MAX15020 toc19
1μs/div
20V/div
0V
1A/div
0A
I
LX
V
LX
I
LOAD
= 500mA
LOAD TRANSIENT
MAX15020 toc16
200μs/div
50mV/div
AC-COUPLED
2A
1A
I
OUT
V
OUT
V
IN
= 40V, V
OUT
= 30V
LOAD TRANSIENT
MAX15020 toc17
200μs/div
50mV/div
AC-COUPLED
1.1A
0.25A
I
OUT
V
OUT
V
IN
= 40V, V
OUT
= 30V
Typical Operating Characteristics (continued)
(V
IN
= 36V, Circuit of Figure 2, T
A
= +25°C, unless otherwise noted.)
HEAVY-LOAD
SWITCHING WAVEFORMS
MAX15020 toc20
1μs/div
20V/div
0V
1A/div
0A
I
LX
V
LX
I
LOAD
= 2A
FEEDBACK VOLTAGE
vs. REFIN INPUT VOLTAGE
MAX15020 toc21
REFIN INPUT VOLTAGE (V)
FEEDBACK VOLTAGE (V)
321
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
04
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

MAX15020ATP+

Mfr. #:
Buy MAX15020ATP+
Manufacturer:
Maxim Integrated
Description:
Switching Voltage Regulators 2A 40V Step-Down w/Dynamic Output-V
Lifecycle:
New from this manufacturer.
Delivery:
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