MAX17480 Maxim Integrated Products, MAX17480 Datasheet - Page 13

• Manufacturer Part Number: MAX17480
• Description: AMD 2-/3-Output Mobile Serial VID Controller
• Manufacturer: Maxim Integrated Products

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(
Circuit of Figure 2, V
3.3V
1.2V
1.2V
1.2V
5A
1A
5V
5V
5V
5V
0
0
0
0
0
0
0
V
V
V
V
IN
SVID
IN
BOOT
= 12V
= 12V
= 1.2V
______________________________________________________________________________________
= 1V
IN
SHUTDOWN WAVEFORMS
STARTUP WAVEFORMS
= 12V, V
I
I
I
I
I
I
LOAD1
LOAD2
LOAD3
LOAD1
LOAD2
LOAD3
100µs/div
200µs/div
= 3A
= 3A
= 0.5A
DD
= 3A
= 3A
= 0.5A
= V
CC
= 5V, V
MAX17480 toc16
MAX17480 toc18
Typical Operating Characteristics (continued)
DDIO
AMD 2-/3-Output Mobile Serial
SHDN, 5V/div
V
V
V
DL1, 10V/div
DL2, 10V/div
LX3, 10V/div
PWRGD, 10V/div
SHDN, 5V/div
V
V
V
PWRGD, 5V/div
I
I
LX
LX3
OUT1
OUT2
OUT3
OUT1
OUT2
OUT3
, 5A/div
, 1A/div
, 0.5V/div
, 0.5V/div
, 0.5V/div
, 0.5V/div
, 0.5V/div
, 0.5V/div
= 2.5V, T
A
= +25°C, unless otherwise noted
13.5A
1.2V
1.5A
12V
0
0
0
0
0
0
0
0
0
CORE SMPS 1-PHASE LOAD-TRANSIENT
V
V
V
V
V
IN
OUT1
IN
BOOT
SVID
= 12V
= 12V
= 1.2V
= 1.2V
= 1V
STARTUP SEQUENCE
I
PWM MODE
LOAD1
RESPONSE
400µs/div
20µs/div
= 1.5A TO 13.5A TO 1.5A
VID Controller
MAX17480 toc17
MAX17480 toc19
.)
V
I
LX1, 10V/div
SHDN, 5V/div
V
V
V
PWRGD, 5V/div
PGD_IN, 2.5V/div
SVC, 2.5V/div
SVD, 2.5V/div
LX1
OUT1
OUT2
OUT3
OUT1
, 10A/div
, 50mV/div
, 0.5V/div
, 0.5V/div
, 0.5V/div
13