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| MAX5038A Datasheet, PDF (8/26 Pages) Maxim Integrated Products – Dual-Phase, Parallelable, Average-Current-Mode Controllers | |||
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Dual-Phase, Parallelable, Average-Current-Mode
Controllers
Typical Operating Characteristics (continued)
(Circuit of Figure 1, TA = +25°C, unless otherwise noted.)
OUTPUT RIPPLE
MAX5038A/41A toc28
INPUT STARTUP RESPONSE
MAX5038A/41A toc29
VPGOOD
1V/div
ENABLE STARTUP RESPONSE
MAX5038A/41A toc30
VPGOOD
1V/div
VIN = +12V
VOUT = +1.75V
IOUT = 52A
500ns/div
VOUT
(AC-COUPLED)
10mV/div
VOUT
1V/div
VIN
5V/div
VIN = +12V
VOUT = +1.75V
IOUT = 52A
2ms/div
VOUT
1V/div
1ms/div
VIN = +12V
VOUT = +1.75V
IOUT = 52A
VEN
2V/div
LOAD-TRANSIENT RESPONSE
MAX5038A/41A toc31
VIN = +12V
VOUT = +1.75V
ISTEP = 8A TO 52A
tRISE = 1µs
40µs/div
VOUT
50mV/div
REVERSE-CURRENT SINK vs.
TEMPERATURE
2.8
R1 = R2 = 1.5mâ¦
2.7
VEXTERNAL = +3.3V
2.6
2.5
VEXTERNAL = +2V
2.4
VIN = +12V
VOUT = +1.5V
2.3
-40 -15
10
35
60
85
TEMPERATURE (°C)
REVERSE-CURRENT SINK
AT INPUT TURN-ON
MAX5038A/41A toc33
VIN = +12V
VOUT = +1.5V
VEXTERNAL = 2.5V
R1 = R2 = 1.5mâ¦
REVERSE
CURRENT
5A/div
0A
200µs/div
REVERSE-CURRENT SINK
AT INPUT TURN-ON
MAX5038A/41A toc34
VIN = +12V
VOUT = +1.5V
VEXTERNAL = 3.3V
R1 = R2 = 1.5mâ¦
REVERSE
CURRENT
10A/div
0A
REVERSE-CURRENT SINK
AT ENABLE TURN-ON
MAX5038A/41 toc35
VIN = +12V
VOUT = +1.5V
VEXTERNAL = 2.5V
R1 = R2 = 1.5mâ¦
REVERSE
CURRENT
5A/div
0A
REVERSE-CURRENT SINK
AT ENABLE TURN-ON
MAX5038A/41 toc36
VIN = +12V
VOUT = +1.5V
VEXTERNAL = 3.3V
R1 = R2 = 1.5mâ¦
REVERSE
CURRENT
10A/div
0A
200µs/div
200µs/div
200µs/div
8 _______________________________________________________________________________________
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