MAX1956ETI-T Maxim Integrated Products, MAX1956ETI-T Datasheet - Page 6

• Manufacturer Part Number: MAX1956ETI-T
• Description: DC/DC Switching Controllers
• Manufacturer: Maxim Integrated Products

Specifications of MAX1956ETI-T

• Number Of Outputs: 2
• Output Voltage: 0.8 V to 4.95 V
• Input Voltage: 1.6 V to 5.5 V
• Package / Case: TQFN EP-28
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1.6V to 5.5V Input, 0.5% Accurate, Dual
180° Out-of-Phase Step-Down Controllers
(Circuit of Figure 5, T
6
1.290
1.285
1.280
1.275
1.270
100
-10
-12
-14
_______________________________________________________________________________________
80
90
70
60
50
-2
-4
-6
-8
2
0
-50
0.1
0
vs. LOAD CURRENT WITH 3.3V INPUT
vs. LOAD CURRENT WITH 3.3V INPUT
OTHER OUTPUT SET
TO 1.8V WITH 25A
LOAD CURRENT
-40
vs. REFERENCE LOAD CURRENT
V
CHANGE IN OUTPUT VOLTAGE
OUT
REFERENCE LOAD CURRENT (µA)
-30
5
V
REFERENCE VOLTAGE
= 2.5V
OUT
-20
LOAD CURRENT (A)
LOAD CURRENT (A)
= 1.5V
1
EFFICIENCY
-10
10
A
= +25°C, unless otherwise noted.)
V
V
V
OUT
0
OUT
OUT
= 2.5V
10
15
= 1.2V
= 1.5V
V
V
10
OUT
OUT
20
V
= 1.2V
= 1.8V
OUT
30
20
= 1.8V
40
50
25
100
100
90
80
70
50
640
630
620
610
600
590
580
570
560
550
540
60
3.0
2.5
2.0
1.5
1.0
0.5
0
2.35
1.6
0.1
vs. LOAD CURRENT WITH 2.5V INPUT
STEP-DOWN SWITCHING FREQUENCY
vs. INPUT VOLTAGE WITH NO LOAD
OTHER OUTPUT SET
TO 1.8V WITH 2.5A
LOAD CURRENT
V
OUT
DEVICE IN DROPOUT
2.60
= 1.8V
2.1
vs. INPUT VOLTAGE
OUTPUT VOLTAGE
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
LOAD CURRENT (A)
1
EFFICIENCY
2.85
2.6
V
OUT
V
T
OUT
Typical Operating Characteristics
T
A
3.10
A
= 1.2V
V
= +85°C
V
V
= -40°C
OUT
OUT
T
V
= 1.2V
OUT
10
A
OUT
= +25°C
= 2.5V
= 1.5V
3.1
V
= 1.8V
= 1.5V
OUT
3.35
= 1V
3.60
100
3.6
100
80
90
70
60
50
-10
-12
-14
3.0
2.5
2.0
1.5
1.0
0.5
-2
-4
-6
-8
2
0
0
2.35
0.1
0
vs. LOAD CURRENT WITH 3.3V INPUT
vs. LOAD CURRENT WITH 1.8V INPUT
OTHER OUTPUT SET
TO 1.8V WITH 2.5A
LOAD CURRENT
vs. INPUT VOLTAGE WITH NO LOAD
OTHER OUTPUT SET
TO 1.8V WITH 25A
LOAD CURRENT
CHANGE IN OUTPUT VOLTAGE
DEVICE IN DROPOUT
2.60
5
MAX1956 EFFICIENCY
OUTPUT VOLTAGE
V
INPUT VOLTAGE (V)
LOAD CURRENT (A)
OUT
LOAD CURRENT (A)
1
2.85
10
= 1.5V
V
OUT
V
OUT
V
V
OUT
3.10
OUT
= 1.8V
15
V
= 1.2V
V
OUT
= 1.2V
= 1.2V
OUT
10
V
OUT
= 1.5V
V
V
= 2.5V
OUT
OUT
3.35
20
= 1.8V
= 1.5V
= 2.5V
3.60
100
25