MAX5037 MAXIM [Maxim Integrated Products], MAX5037 Datasheet - Page 8

• Manufacturer Part Number: MAX5037
• Description: VRM 9.0, Dual-Phase, Parallelable, Average Current-Mode Controller
• Manufacturer: MAXIM [Maxim Integrated Products]

VRM 9.0, Dual-Phase, Parallelable,
Average Current-Mode Controller
(Circuit of Figure 1, T
8
200mV/div
PLLCMP
CLKOUT
5V/div
_______________________________________________________________________________________
0
V
NO LOAD
V
C
IN
250kHz
IN
DL_
= +12V
= +12V
= 22nF
INPUT STARTUP RESPONSE
250kHz TO 150kHz AND
LOW-SIDE DRIVER (DL_)
PLL LOCKING TIME
150kHz TO 250kHz
RISE TIME
A
100µs/div
40ns/div
2ms/div
= +25°C, unless otherwise noted.)
150kHz
V
V
I
OUT
IN
OUT
= +12V
= 52A
= +1.75V
MAX5037 toc28
MAX5037 toc31
MAX5037 toc34
DL_
2V/div
V
1V/div
V
1V/div
V
5V/div
PGOOD
OUT
IN
Typical Operating Characteristics (continued)
V
C
V
C
IN
DH_
IN
DL_
= +12V
= +12V
ENABLE STARTUP RESPONSE
= 22nF
= 22nF
HIGH-SIDE DRIVER (DH_)
LOW-SIDE DRIVER (DL_)
RISE TIME
FALL TIME
40ns/div
40ns/div
1ms/div
V
V
I
OUT
IN
OUT
= +12V
= 52A
= +1.75V
MAX5037 toc29
MAX5037 toc35
MAX5037 toc32
DH_
2V/div
DL_
2V/div
V
1V/div
V
1V/div
V
2V/div
PGOOD
OUT
EN
50mV/div
V
OUT
V
V
I
t
V
C
V
V
I
STEP
RISE
OUT
IN
OUT
IN
DH_
IN
OUT
= +12V
= +12V
= +12V
LOAD-TRANSIENT RESPONSE
= 1µs
= 52A
= +1.75V
= 8A TO 52A
= 22nF
= +1.75V
HIGH-SIDE DRIVER (DH_)
OUTPUT RIPPLE
FALL TIME
40ns/div
500ns/div
40µs/div
MAX5037 toc30
MAX5037 toc36
MAX5037 toc33
DH_
2V/div
V
(AC-COUPLED)
10mV/div
OUT