Datasheet

MAX8632
Integrated DDR Power-Supply Solution for
Desktops, Notebooks, and Graphic Cards
8 _______________________________________________________________________________________
STANDBY RESPONSE, VTT AT NO LOAD
MAX8632 toc17b
2ms/div
500mV/div
500mV/div
500mV/div
5V/div
V
OUT
VTT
VTTR
STBY
1.8V
0.9V
0.9V
Typical Operating Characteristics (continued)
(V
VIN
= 12V, V
OUT
= 2.5V, TON = GND, SKIP = AV
DD
, circuit of Figure 8, T
A
= +25°C, unless otherwise noted.)
OVERVOLTAGE AND TURN-OFF
OF BUCK OUTPUT
MAX8632 toc18
40µs/div
V
OUT
1V/div
V
LX
10V/div
V
DL
5V/div
0V
0V
0V
SHORT CIRCUIT AND
RECOVERY OF V
DDQ
MAX8632 toc19
400µs/div
V
OUT
2V/div
I
LOAD
10A/div
V
IN
10V/div
I
IN
2A/div
0A
0V
0A
0V
UVP DISABLED, FOLDBACK CURRENT LIMIT
SHORT CIRCUIT AND
RECOVERY OF V
DDQ
MAX8632 toc20
400µs/div
V
OUT
2V/div
I
LOAD
10A/div
V
IN
10V/div
I
IN
2A/div
0A
0V
0A
0V
UVP ENABLED
SHORT CIRCUIT OF VTT
MAX8632 toc21
400µs/div
VTT
1V/div
I
VTT
5A/div
0A
0V