MAX1519 Datasheet, PDF (41/43 Pages) Maxim Integrated Products – Dual-Phase, Quick-PWM Controllers for Programmable CPU Core Power Supplies

Dual-Phase, Quick-PWM Controllers for
Programmable CPU Core Power Supplies
R12
10Ω
V_CC
V_DD
C6
0.22µF
POL
D1
V+
1N4148
BST
OUTPUT
REF
(MASTER)
C_COMP1 RCOMP1
270pF 20kΩ
COMP
DH
U2
LX
R17
200kΩ
C9
100pF
R18
49.9kΩ
MAX1980 _DL
ILIM
PGND
GND
FLOAT
(300kHz)
T_ON
CS+
LIMIT
CS-
DD
TRIG
CM+
CM-
5V BIAS
C5 ^SUPPLY
1µF
D_BST3
C_IN
INPUT*
7V TO 24V
C_BST3
0.22µF
N_H3
L3
R_SENSE3
1.5mΩ
N_L3
R13
100Ω
C7
R14
1000pF ^100Ω
R15
100Ω
C8
R16
1000pF 100Ω
OUTPUT
C_OUT
CONNECT TO
MAX1519/MAX1545
(SEE FIGURE 12a)
POWER GROUND
ANALOG GROUND
(MASTER)
ANALOG GROUND
(SLAVE)
CONNECT TO
MAX1519/MAX1545
(SEE FIGURE 12a)
*LOWER INPUT VOLTAGES
REQUIRE ADDITIONAL
INPUT CAPACITANCE.
Figure 12b. Standard 4-Phase Desktop 4 Application Circuit (3rd Phase—MAX1980 Slave)
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