MAX15035 Datasheet, PDF (7/27 Pages) Maxim Integrated Products – 15A Step-Down Regulator with Internal Switches

15A Step-Down Regulator with Internal Switches
Typical Operating Characteristics (continued)
(MAX15035 Circuit of Figure 1, V_IN = 12V, V_DD = 5V, SKIP = GND, R_TON = 200kΩ, T_A = +25°C, unless otherwise noted.)
SWITCHING FREQUENCY
vs. LOAD CURRENT
400
350
PWM MODE
300
250
200
150
100
ULTRASONIC
50
MODE
SKIP MODE
0
0.01
0.1
1
10
LOAD CURRENT (A)
MAXIMUM OUTPUT CURRENT
vs. INPUT VOLTAGE
16.00
15.80
15.60
15.40
15.20
15.00
14.80
14.60
14.40
14.20
14.00
6
9 12 15 18 21 24
INPUT VOLTAGE (V)
PWM MODE SWITCHING FREQUENCY
vs. INPUT VOLTAGE
380
370
360
350
I_LOAD = 5A
340
330
320
310
300
290
NO LOAD
280
270
260
250
240
6 8 10 12 14 16 18 20 22 24
INPUT VOLTAGE (V)
MAXIMUM OUTPUT CURRENT
vs. AMBIENT TEMPERATURE
15
0 LFM
13
100 LFM
300 LFM
11
9
7
FOUR-LAYER PCB
WITH 2oz COPPER USED
5
-40 -20 0 20 40 60
TEMPERATURE (°C)
80 100
SWITCHING FREQUENCY
vs. TEMPERATURE
390
I_LOAD = 10A
380
370
360
I_LOAD = 5A
350
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
NO-LOAD SUPPLY CURRENT (I_BIAS)
vs. INPUT VOLTAGE
12
10
PWM MODE
8
6
4
ULTRASONIC MODE
2
SKIP MODE
0
6 8 10 12 14 16 18 20 22 24
INPUT VOLTAGE (V)
NO-LOAD SUPPLY CURRENT (I_IN)
vs. INPUT VOLTAGE
100
REF OUTPUT VOLTAGE
vs. LOAD CURRENT
2.005
10
PWM MODE
ULTRASONIC MODE
1
0.1
SKIP MODE
2.004
2.003
2.002
2.001
0.01
6
8 10 12 14 16 18 20 22 24
INPUT VOLTAGE (V)
2.000
-10 0 10 20 30 40 50
LOAD CURRENT (µA)
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