MAX1544ETL+ Maxim Integrated Products, MAX1544ETL+ Datasheet - Page 40

• Manufacturer Part Number: MAX1544ETL+
• Description: IC QUICK-PWM DUAL-PHASE 40-TQFN
• Manufacturer: Maxim Integrated Products
• Series: Quick-PWM™r

Specifications of MAX1544ETL+

• Applications: Controller, AMD Hammer
• Voltage - Input: 2 ~ 28 V
• Number Of Outputs: 1
• Voltage - Output: 0.68 ~ 1.55 V
• Operating Temperature: -40°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 40-TQFN Exposed Pad
• Output Voltage: 0.675 V to 1.55 V
• Output Current: 40 A
• Input Voltage: 4 V to 28 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 100 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual-Phase, Quick-PWM Controller for
AMD Hammer CPU Core Power Supplies
Figure 12b. Standard AMD Desktop 70A Application Circuit (3rd Phase—MAX1980 Slave)
40
______________________________________________________________________________________
(MASTER)
OUTPUT
POWER GROUND
ANALOG GROUND
(MASTER)
REF
(300kHz)
FLOAT
200kΩ
R17
C
100pF
270pF
1N4148
COMP1
C9
D1
(SEE FIGURE 12a)
0.22µF
CONNECT TO
R
MAX1544
20kΩ
COMP1
C6
10Ω
R12
R18
49.9kΩ
V
POL
COMP
ILIM
TON
LIMIT
DD
TRIG
CC
MAX1980
U2
PGND
CM+
GND
CM-
V
BST
CS+
CS-
DH
DL
DD
V+
LX
D
C
0.22µF
C7
1000pF
C8
1000pF
BST3
BST3
C5
1µF
100Ω
100Ω
100Ω
100Ω
R13
R14
R15
R16
5V BIAS
SUPPLY
N
N
C
H3
L3
IN
(SEE FIGURE 12a)
CONNECT TO
MAX1544
L3
INPUT*
7V TO 24V
R
1.0mΩ
SENSE3
*LOWER INPUT VOLTAGES
REQUIRE ADDITIONAL
INPUT CAPACITANCE.
OUTPUT
C
OUT