MAX1809EEE+ Maxim Integrated Products, MAX1809EEE+ Datasheet - Page 4

• Manufacturer Part Number: MAX1809EEE+
• Description: IC DDR TERMINATION 16-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1809EEE+

• Applications: Converter, DDR
• Voltage - Input: 3 ~ 5.5 V
• Number Of Outputs: 1
• Voltage - Output: 1.1 ~ 5.5 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3A, 1MHz, DDR Memory Termination Supply
(Circuit of Figure 1, V
4
100
95
90
85
80
75
70
65
60
55
50
_______________________________________________________________________________________
24
20
16
12
8
4
0
0
SUPPLY CURRENT vs. SUPPLY VOLTAGE
0
EFFICIENCY vs. OUTPUT CURRENT
1
0A
0V
0V
0V
V
V
IN
OUT
OUTPUT CURRENT (A)
= 5V,
V
= 2.5V
1
2
IN
(SOURCING)
= 3.3V, R
NO-LOAD
OUT
V
V
V
STARTUP AND SHUTDOWN
IN
IN
OUT
3
(V)
= 3.3V,
= 1.25V, for V
OUT
= 1.25V
V
V
2
= 0.5Ω
4
R
IN
OUT
DROOP
1ms/div
= 5V,
= 1.25V
5
= 0Ω
IN
3
6
= 5V: L = 1µH, R
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
95
90
85
80
75
70
65
60
55
50
0
0
0
1A/div
V
5V/div
V
1V/div
I
V
2V/div
IN
OUT
SHDN
SS
EFFICIENCY vs. OUTPUT CURRENT
50
100 150 200
V
V
TOFF
IN
OUT
OFF-TIME vs. R
= 3.3V,
OUTPUT CURRENT (A)
V
V
= 1.25V
1
IN
OUT
= 130kΩ; for V
(SINKING)
= 5V,
R
= 2.5V
TOFF
250 300 350
V
V
(kΩ)
IN
OUT
Typical Operating Characteristics
= 5V,
0V
= 1.25V
0A
TOFF
2
R
DROOP
V
400
EXTREF
IN
= 0Ω
450
= 3.3V: L = 0.68µH, R
LOAD-TRANSIENT RESPONSE
= 1.25V, V
500
3
IN
= 3.3V, I
10µs/div
1200
1000
-0.2
-0.6
-1.0
-1.4
-1.8
-2.2
-2.6
-3.0
800
600
400
200
0
OUT
-3
-3
= -2A to +2A to -2A
R
NORMALIZED OUTPUT ERROR
DROOP
-2
-2
TOFF
SWITCHING FREQUENCY
vs. OUTPUT CURRENT
vs. OUTPUT CURRENT
V
= 0Ω
OUTPUT CURRENT (A)
IN
OUTPUT CURRENT (A)
V
-1
-1
= 5V
= 73.2kΩ.)
IN
= 5V
50mV/div
I
5A/div
V
(AC-COUPLED)
V(LX)
5V/div
OUT
0
OUT
0
V
IN
= 3.3V
1
V
1
IN
= 3.3V
2
2
3
3