MAX1956ETI Maxim Integrated Products, MAX1956ETI Datasheet - Page 7

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

Specifications of MAX1956ETI

• 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

V
I
OUT
OUT
(Circuit of Figure 5, T
LOAD TRANSIENT WITH 1.5V OUTPUT
-10
-12
-14
3.0
2.5
2.0
1.5
1.0
0.5
-2
-4
-6
-8
0
2
0
2.35
1.60
vs. INPUT VOLTAGE WITH 25A LOAD
vs. INPUT VOLTAGE WITH NO LOAD
OTHER OUTPUT SET
TO 1.8V WITH 25A
LOAD CURRENT
OTHER OUTPUT SET
TO 1.8V WITH 2.5A
LOAD CURRENT
WITH 20A LOAD
MAX1956
CHANGE IN OUTPUT VOLTAGE
ONLY
2.60
2.10
10µs/div
OUTPUT VOLTAGE
V
INPUT VOLTAGE (V)
OUT
INPUT VOLTAGE (V)
V
2.35
OUT
2.85
= 1V
DEVICE IN DROPOUT
_______________________________________________________________________________________
A
= 1.2V
2.60
= +25°C, unless otherwise noted.)
180° Out-of-Phase Step-Down Controllers
3.10
1.6V to 5.5V Input, 0.5% Accurate, Dual
MAX1955/56 toc16
V
OUT
V
V
OUT
OUT
3.10
V
V
= 1.2V
OUT
OUT
3.35
= 0.8V
= 1.5V
= 1.8V
= 2.5V
10A/div
50mV/div
3.60
3.60
V
V
LX2
LX1
I
I
L2
L1
Typical Operating Characteristics (continued)
-10
-12
-14
3.0
2.5
2.0
1.5
1.0
0.5
-2
-4
-6
-8
0
2
0
2.35
1.60
vs. INPUT VOLTAGE WITH 25A LOAD
vs. INPUT VOLTAGE WITH 25A LOAD
OTHER OUTPUT SET
TO 1.8V WITH 2.5A
LOAD CURRENT
SWITCHING WAVEFORMS
OTHER OUTPUT SET
TO 1.8V WITH 25A
LOAD CURRENT
WITH 20A LOAD
MAX1956
CHANGE IN OUTPUT VOLTAGE
ONLY
2.60
2.10
V
OUTPUT VOLTAGE
OUT
400ns/div
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
V
2.35
= 1.2V
OUT
2.85
DEVICE IN DROPOUT
= 1V
2.60
3.10
V
MAX1955/56 toc17
OUT
V
3.10
V
= 1.5V
V
V
OUT
OUT
OUT
OUT
3.35
= 1.2V
= 0.8V
= 1.8V
= 2.5V
5V/div
5A/div
5V/div
5A/div
3.60
3.60
V
SYNC
V
V
DH1
DH2
-10
-12
-14
-10
-12
-14
-2
-4
-6
-8
-2
-4
-6
-8
2
0
2
0
1.60
1.6
MAX1956 CHANGE IN OUTPUT VOLTAGE
SYNCHRONIZATION WAVEFORMS
vs. INPUT VOLTAGE WITH 25A LOAD
OTHER OUTPUT SET
TO 1.8V WITH 2.5A
LOAD CURRENT
OTHER OUTPUT SET
TO 1.8V WITH 25A
LOAD CURRENT
vs. INPUT VOLTAGE WITH NO LOAD
V
MAX1956
OUT
CHANGE IN OUTPUT VOLTAGE
ONLY
= 0.8V
V
2.10
2.1
OUT
V
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
OUT
= 1V
2.35
2µs/div
= 1V
2.60
2.6
V
OUT
V
OUT
V
= 1.2V
OUT
MAX1955/56 toc18
3.10
3.1
= 1.2V
= 0.8V
3.60
1V/div
5V/div
3.6
5V/div
7