MAX8543EEE+ Maxim Integrated Products, MAX8543EEE+ Datasheet - Page 7

• Manufacturer Part Number: MAX8543EEE+
• Description: IC CNTRLR STEP DOWN 16-QSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8543EEE+

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 11 V
• Current - Output: 25A
• Frequency - Switching: 200kHz ~ 1MHz
• Voltage - Input: 3 ~ 13.2 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Power - Output: 667mW
• Output Voltage: 0.8 V to 11.88 V
• Output Current: 25000 mA
• Mounting Style: SMD/SMT
• Switching Frequency: 200 KHz to 1000 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Synchronous Pin: Yes
• Topology: Buck
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(T
A
2.510
2.508
2.506
2.504
2.502
2.500
2.498
2.496
2.494
2.492
2.490
= +25°C, unless otherwise noted.)
100
90
80
70
60
50
40
30
20
10
0
10.8
0.1
Lossless Sensing, Synchronization, and OVP
V
Step-Down Controllers with Prebias Startup,
LINE REGULATION WITH 12V INPUT
OUT
EFFICIENCY vs. LOAD CURRENT
= 3.3V
11.4
AND 2.5V OUTPUT
15A LOAD
NO LOAD
WITH 12V INPUT
INPUT VOLTAGE (V)
LOAD CURRENT (A)
1
V
_______________________________________________________________________________________
OUT
12.0
= 1.8V
V
OUT
= 2.5V
10
12.6
f
S
= 600kHz
13.2
100
2.54
2.52
2.50
2.48
2.46
2.44
2.42
100
700
680
660
640
620
600
580
560
540
520
500
90
80
70
60
50
40
30
20
10
0
0.1
3.0
5.5
EFFICIENCY vs. LOAD CURRENT
3.1
NO LOAD
15A LOAD
f
T
S
OSCILLATOR FREQUENCY
A
15A LOAD
f
= 350kHz
S
= -40°C
7.5
3.0V TO 3.6V INPUT
= 500kHz
vs. INPUT VOLTAGE
LINE REGULATION
WITH 3.3V INPUT
V
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
LOAD CURRENT (A)
3.2
OUT
1
V
OUT
= 1.5V
V
OUT
= 1.8V
3.3
9.5
= 2.5V
Typical Operating Characteristics
T
A
T
= +25°C
A
3.4
10
= +85°C
11.5
R6 = 42.2kΩ
f
S
= 500kHz
3.5
13.5
100
3.6
2.55
2.54
2.53
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
600
580
560
540
520
500
480
460
440
420
400
3.0
0
LOAD REGULATION WITH 12V INPUT
3.5
OSCILLATOR FREQUENCY
3
T
vs. INPUT VOLTAGE
A
= -40°C
INPUT VOLTAGE (V)
LOAD CURRENT (A)
4.0
6
4.5
T
9
A
T
= +85°C
A
= +25°C
R6 = 53.6kΩ
5.0
12
5.5
15
7