MAX5037A Datasheet, PDF (8/31 Pages) Maxim Integrated Products – VRM 9.0/VRM 9.1, Dual-Phase, Parallelable, Average-Current-Mode Controller

VRM 9.0/VRM 9.1, Dual-Phase,
Parallelable, Average-Current-Mode Controller
Typical Operating Characteristics (continued)
(Circuit of Figure 1, T_A = +25°C, unless otherwise noted.)
CLKOUT
5V/div
PLL LOCKING TIME
250kHz TO 150kHz AND
150kHz TO 250kHz
MAX5037A toc28
PLLCMP
200mV/div
250kHz
0
V_IN = +12V
NO LOAD
150kHz
100µs/div
LOW-SIDE DRIVER (DL_)
RISE TIME
MAX5037A toc31
HIGH-SIDE DRIVER (DH_)
RISE TIME
MAX5037A toc29
DH_
2V/div
V_IN = +12V
C_{DH_} = 22nF
40ns/div
LOW-SIDE DRIVER (DL_)
FALL TIME
MAX5037A toc32
HIGH-SIDE DRIVER (DH_)
FALL TIME
MAX5037A toc30
DH_
2V/div
V_IN = +12V
C_{DH_} = 22nF
40ns/div
OUTPUT RIPPLE
MAX5037A toc33
DL_
2V/div
DL_
2V/div
V_OUT
(AC-COUPLED)
10mV/div
V_IN = +12V
C_{DL_} = 22nF
40ns/div
V_IN = +12V
C_{DL_} = 22nF
40ns/div
V_IN = +12V
V_OUT = +1.75V
I_OUT = 52A
500ns/div
INPUT STARTUP RESPONSE
MAX5037A toc34
V_PGOOD
1V/div
V_OUT
1V/div
2ms/div
V_IN
5V/div
V_IN = +12V
V_OUT = +1.75V
I_OUT = 52A
ENABLE STARTUP RESPONSE
MAX5037A toc35
V_PGOOD
1V/div
LOAD-TRANSIENT RESPONSE
MAX5037A toc36
V_OUT
1V/div
V_OUT
50mV/div
1ms/div
V_IN = +12V
V_OUT = +1.75V
I_OUT = 52A
V_EN
2V/div
V_IN = +12V
V_OUT = +1.75V
I_STEP = 8A TO 52A
t_RISE = 1µs
40µs/div
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