MAX8744ETJ+ Maxim Integrated Products, MAX8744ETJ+ Datasheet - Page 18

• 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
Figure 2. Functional Diagram
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______________________________________________________________________________________
PGOOD5
PGOOD3
PGOODA
PGND
CSH3
CSL3
BST3
SKIP
ILIM
DH3
ON3
DL3
LX3
FB3
FSEL
OSC
LDO5
LDO5
(FIGURE 5)
DECODE
FB
CONTROLLER
(FIGURE 3)
PWM3
INTERNAL
FB
POWER-GOOD AND FAULT
MAX8744
MAX8745
PROTECTION
(FIGURE 6)
CONTROLLER
(FIGURE 3)
REGULATOR
5V LINEAR
PWM5
LDO BYPASS
CIRCUITRY
LINEAR REGULATOR
(FIGURE 5)
DECODE
AUXILIARY
FB
R
LDO5
2.0V
REF
R
IN
SHDN
LDO5
CSH5
CSL5
BST5
DH5
LX5
DL5
ON5
FB5
REF
GND
DRVA
OUTA
FBA
ONA