MAX8550EVKIT Maxim Integrated Products, MAX8550EVKIT Datasheet - Page 7

• Manufacturer Part Number: MAX8550EVKIT
• Description: EVAL KIT FOR MAX8550
• Manufacturer: Maxim Integrated Products

Specifications of MAX8550EVKIT

• Main Purpose: Special Purpose DC/DC, DDR Memory Supply
• Outputs And Type: 3, Non-Isolated
• Power - Output: 31.8W
• Voltage - Output: 2.5V, 1.25V, 1.25V
• Current - Output: 12A, 1.5A, 10mA
• Voltage - Input: 9 ~ 20V
• Regulator Topology: Buck
• Frequency - Switching: 600kHz
• Board Type: Fully Populated
• Utilized Ic / Part: MAX8550
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

0.1A
12A
0V
0V
0V
0V
(V
VIN
V
I
DD
VTT
= 5V, I
= 12V, V
= 1.5A, I
LOAD TRANSIENT (BUCK)
POWER-UP WAVEFORMS
LOAD
VTTR
0V
0V
0V
0V
= 12A, I
Integrated DDR Power-Supply Solutions for
OUT
200µs/div
20µs/div
= 15mA
V
LIGHT LOAD, DISCHARGE ENABLED
DDQ
VTT
Desktops, Notebooks, and Graphic Cards
= 2.5V, TON = GND, SKIP = AV
= 1.5A, I
STARTUP AND SHUTDOWN INTO
_______________________________________________________________________________________
VTTR
MAX8550/51 toc10
MAX8550/51 toc13
2ms/div
= 15mA
V
100mV/div
VTT
100mV/div
VTTR
100mV/div
I
10A/div
LOAD
OUT
1V/div
VTT
2V/div
VTTR
1V/div
V
10V/div
OUT
IN
R
R
LOAD
VTT
MAX8550/51 toc16
= 20Ω
= 10Ω,
0V
0V
0V
0A
0V
LOAD TRANSIENT VTT (-1.5A TO +1.5A)
V
I
DD
LOAD
Typical Operating Characteristics (continued)
V
1V/div
VTT
1V/div
SHDNA + SHDNB
5V/div
POK1
5V/div
OUT
= 5V, I
DD
POWER-DOWN WAVEFORMS
= 12A, I
, circuit of Figure 8, T
LOAD
VTTR
= 12A, I
200µs/div
40µs/div
= 15mA
VTT
= 1.5A, I
VTTR
MAX8550/51 toc14
MAX8550/51 toc11
= 15mA
A
= +25°C, unless otherwise noted.)
0V
0V
0V
0V
OUT
1V/div
VTT
2V/div
VTTR
1V/div
V
10V/div
V
50mV/div
VTTR
50mV/div
I
2A/div
VTT
50mV/div
VTT
IN
VTT, VTTR STARTUP AND SHUTDOWN
OUT
I
VTT
= 1.5A, I
0A
0V
0V
0V
0V
VTTR
I
V
LOAD
LOAD TRANSIENT VTT (-3A TO +3A)
HEAVY LOAD, DISCHARGE DISABLED
I
I
LOAD
VTT
DDQ
200µs/div
= 15mA
= 1.5A
= 12A, I
= 12A,
STARTUP AND SHUTDOWN INTO
VTTR
= 15mA
40µs/div
1ms/div
MAX8550/51 toc17
VTT
1V/div
SHDNB
5V/div
POK2
5V/div
VTTR
1V/div
MAX8550/51 toc12
MAX8550/51 toc15
V
50mV/div
VTT
50mV/div
VTTR
50mV/div
I
5A/div
VTT
V
2V/div
VTT
1V/div
POK1
5V/div
SHDNA + SHDNB
5V/div
OUT
OUT
7