MAX8553 Maxim, MAX8553 Datasheet - Page 9

• Manufacturer Part Number: MAX8553
• Description: 4.5V to 28V Input / Synchronous PWM Buck Controllers for DDR Termination and Point-of-Load Applications
• Manufacturer: Maxim

(V
4.5V to 28V Input, Synchronous PWM Buck Controllers
V+
= 12V, V
for DDR Termination and Point-of-Load Applications
V
V
I
OUT
OUT
I
OUT
OUT
OUT
VTT CONNECTED AS SHOWN IN FIGURE 2
LOAD TRANSIENT -8A TO +8A TO -8A
LOAD TRANSIENT 0A TO 20A TO 0A
= 1.8V, circuit of Figure 1, T
_______________________________________________________________________________________
(CIRCUIT OF FIGURE 1)
(CIRCUIT OF FIGURE 2)
40µs/div
40µs/div
MAX8553/4 toc10
MAX8553/4 toc12
A
= +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
10A/div
100mV/div
AC-COUPLED
20mV/div
AC-COUPLED
0
5A/div
V
V
V
OUT
I
OUT
OUT
LX
I
L
SWITCHING WAVEFORMS WITH 20A LOAD
VTT CONNECTED TO THE OUTPUT
LOAD TRANSIENT -8A TO +8A TO -8A
(CIRCUIT OF FIGURE 1)
(CIRCUIT OF FIGURE 2)
40µs/div
2µs/div
MAX8553/4 toc11
MAX8553/4 toc13
20mV/div
AC-COUPLED
0
5A/div
5V/div
0
20mV/div
AC-COUPLED
10A/div
9