MAX8744ETJ+ Maxim Integrated Products, MAX8744ETJ+ Datasheet - Page 10

• Manufacturer Part Number: MAX8744ETJ+
• Description: IC CNTRLR PWR SUP QUAD 32TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8744ETJ+

• Applications: Controller, Notebook Computers
• Voltage - Input: 6 ~ 26 V
• Number Of Outputs: 4
• Voltage - Output: 3.3V, 5V, 1 ~ 26 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Duty Cycle (max): 99 %
• Output Voltage: 3.315 V, 5.015 V, 2 V to 5.5 V
• Mounting Style: SMD/SMT
• Switching Frequency: 200 KHz, 300 KHz, 500 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Synchronous Pin: No
• Topology: Boost, Flyback, Forward
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

High-Efficiency, Quad-Output, Main Power-
Supply Controllers for Notebook Computers
10
(Circuit of Figure 1, V
5.0
4.9
4.8
4.7
4.6
4.5
3
2
1
0
______________________________________________________________________________________
0
0
3.3V IDLE MODE CURRENT
20
4
LDO5 OUTPUT VOLTAGE
vs. INPUT VOLTAGE
vs. LOAD CURRENT
LOAD CURRENT (mA)
INPUT VOLTAGE (V)
40
8
IN
LOW-NOISE MODE
= 12V, SKIP = GND, FSEL = REF, T
SKIP = GND
SKIP = REF
SKIP MODE
12
60
80
16
100
20
1000
12.2
12.1
12.0
11.9
Typical Operating Characteristics (continued)
100
10
1
0.001
0
FORCED-PWM
LOW-NOISE SKIP
3.3V SWITCHING FREQUENCY
OUTA OUTPUT VOLTAGE
0.01
A
vs. LOAD CURRENT
vs. LOAD CURRENT
= +25°C, unless otherwise noted.)
LOAD CURRENT (mA)
50
LOAD CURRENT (A)
0.1
PULSE SKIPPING
100
1
150
10
12V
50
40
30
20
10
5V
2V
1V
5V
5V
0
0
0
-10
A. INPUT SUPPLY, 5V/div
B. REF, 2V/div
SHDN = IN
+85°C
+25°C
REFERENCE OFFSET VOLTAGE
-6
2V REF OFFSET VOLTAGE (mV)
LDO5 POWER-UP
DISTRIBUTION
-2
1ms/div
SAMPLE SIZE = 125
2
C. LDO5, 5V/div
D. PGOOD5, 5V/div
6
MAX8744 toc15
10
A
B
C
D