MAX8744ETJ+ Maxim Integrated Products, MAX8744ETJ+ Datasheet - Page 27

• 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

Figure 7. Current-Sense Configurations
Supply Controllers for Notebook Computers
High-Efficiency, Quad-Output, Main Power-
A) OUTPUT SERIES RESISTOR SENSING
B) LOSSLESS INDUCTOR SENSING
______________________________________________________________________________________
MAX8744
MAX8745
MAX8744
MAX8745
PGND
PGND
CSH_
CSH_
CSL_
CSL_
DH_
DH_
DL_
LX_
DL_
LX_
N
N
N
N
H
H
L
L
D
D
C
C
L
L
IN
IN
L
INPUT (V
INPUT (V
INDUCTOR
L
L
SENSE RESISTOR
ESL
R1
R1
IN
IN
)
)
R
R
SENSE
C
DCR
R2
C
EQ
EQ
C
C
OUT
OUT
R
R
DCR
CS
=
=
C
EQ
(
C
L
EQ
R1 + R2
R1 =
R2
[
R1
L
R
1
SENSE
SENSE
)
+
R
R2
DCR
1
]
27