MAX8550AETI+ Maxim Integrated Products, MAX8550AETI+ Datasheet - Page 6

• Manufacturer Part Number: MAX8550AETI+
• Description: IC PWR SUP DDR INTEG 28TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8550AETI+

• Applications: Controller, DDR
• Voltage - Input: 2 ~ 28 V
• Number Of Outputs: 2
• Voltage - Output: 1.8V, 2.5V, 0.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Output Voltage: 0.7 V to 5.5 V, 1.8 V, 2.5 V
• Output Current: 1.5 A
• Input Voltage: 2 V to 28 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Integrated DDR Power-Supply Solution for
Desktops, Notebooks, and Graphic Cards
(V
6
VIN
1.28
1.27
1.26
1.25
1.24
1.23
1.22
1.21
1.20
100
520
700
680
660
640
620
600
580
560
540
500
480
460
440
420
400
_______________________________________________________________________________________
90
80
70
60
50
40
30
20
10
0
SWITCHING FREQUENCY vs. INPUT VOLTAGE
= 12V, V
0.01
-3
4
f
SW
6
EFFICIENCY vs. LOAD CURRENT
= 600kHz
-2
8 10 12 14 16 18
OUT
0.1
vs. VTT CURRENT
VTT VOLTAGE
-1
V
(TON = GND)
= 2.5V, TON = GND, SKIP = AV
(TON = GND)
OUT
I
I
LOAD
VTT
V
= 1.5V
IN
0
1
(A)
(V)
(A)
V
OUT
1
20 22
= 1.8V
I
V
SKIP = GND
SKIP = AV
I
10
LOAD
LOAD
OUT
2
24
= 2.5V
= 12A
= 0A
26
DD
100
3
28
1.28
1.27
1.26
1.25
1.24
1.23
1.22
1.21
1.20
100
700
690
680
670
660
650
640
630
620
610
600
90
80
70
60
50
40
30
20
10
DD
0
SWITCHING FREQUENCY vs. TEMPERATURE
0.01
-40
-15
, circuit of Figure 8, T
f
SW
-25
EFFICIENCY vs. LOAD CURRENT
= 300kHz
-10
-10
0.1
vs. VTTR CURRENT
TEMPERATURE (°C)
VTTR VOLTAGE
-5
(TON = OPEN)
(TON = GND)
5
I
I
VTTR
LOAD
V
20
OUT
1
0
(mA)
(A)
Typical Operating Characteristics
= 1.5V
35
V
A
5
OUT
50
= +25°C, unless otherwise noted.)
SKIP = GND
SKIP = AV
10
I
V
LOAD
= 1.8V
OUT
65
10
= 2.5V
= 12A
DD
80
100
15
2.540
2.535
2.530
2.525
2.520
2.515
2.510
2.505
2.500
2.495
2.490
2.55
2.54
2.53
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
700
650
600
550
500
450
400
350
300
250
200
150
100
50
0
SWITCHING FREQUENCY vs. LOAD CURRENT
0
0
4
1
6
2
2
8 10 12 14 16 18
3
vs. LOAD CURRENT
OUTPUT VOLTAGE
LINE REGULATION
4
4
(V
(TON = GND)
OUT
5
I
I
6
LOAD
LOAD
V
IN
vs. V
6
(V)
(A)
(A)
8
7
IN
I
LOAD
20 22
I
8
LOAD
)
V
TON = GND
10
SKIP = GND
SKIP = AV
IN
SKIP = GND
SKIP = AV
= 0A
9
= 15V,
= 12A
10
24
12
11
26
DD
DD
14
12
28