MAX1544ETL+ Maxim Integrated Products, MAX1544ETL+ Datasheet - Page 39

• 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

Figure 12a. Standard AMD Desktop 70A Application Circuit (1st and 2nd Phases—MAX1544 Master)
POWER GROUND
ANALOG GROUND
V
CC
PWM
(OVP ENABLED)
POWER
ON
GOOD
(FOUR-LEVEL LOGIC)
______________________________________________________________________________________
AMD Hammer CPU Core Power Supplies
SUSPEND INPUTS
SKIP
0.22µF
OFF
C
REF
REF
DAC INPUTS
0.22µF
C
Dual-Phase, Quick-PWM Controller for
100kΩ
REF
22.6kΩ
R11
±1%
R9
20kΩ
±1%
R6
100kΩ
REF (300kHz)
1µF
±1%
10Ω
64.9kΩ
R10
C2
R
R8
TIME
R7
182kΩ
±1%
C
47pF
CCV
V
VROK
D0
D1
D2
D3
D4
S0
S1
SHDN
TIME
CCV
TON
REF
ILIM
OFS
OVP
SKIP
GND
CC
MAX1544
U1
OAIN+
BSTM
PGND
OAIN-
GNDS
BSTS
DHM
CMN
CMP
DLM
LXM
GND
CSN
DHS
CSP
LXS
DLS
V
CCI
DD
V+
FB
R1
1.65kΩ
±1%
C
0.22µF
C
470pF
C
0.22µF
BST1
CCI
BST2
N
N
H1
BST
DIODES
L1
C1
2.2µF
N
N
H2
L2
5V BIAS
SUPPLY
C
C
IN
IN
L1
L2
±1%
±1%
1kΩ
1kΩ
R2
R4
INPUT*
7V TO 24V
R
1.0mΩ
R
SENSE1
1.0mΩ
SENSE2
*LOWER INPUT VOLTAGES
REQUIRE ADDITIONAL
INPUT CAPACITANCE.
R5
1kΩ
±1%
R3
1kΩ
±1%
1.65kΩ
±1%
R6
C
C
OUT
OUT
OUTPUT
39