MAX1519 Datasheet, PDF (40/43 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
POWER-
GOOD
R10
10Ω
R11
100kΩ
C2
1µF
DAC INPUTS
V_DD
V_CC
U1
MAX1519
MAX1545 ^V+
VROK
BSTM
D0
D1
D2
DHM
D3
D4
LXM
GND (DESKTOP P4)
SUSPEND INPUTS
(FOUR-LEVEL LOGIC)
ON
OFF
R_TIME
64.9kΩ
C_CCV
47pF
CODE
S0
S1
SHDN
TIME
CCV
DLM
PGND
GND
CMN
CMP
OAIN+
OAIN-
C_REF
REF (300kHz)
TON
0.22µF
REF
R9
R8
30.1kΩ ^100kΩ
±1% ^±1%
ILIM
REF
C3
100pF
STP_CPU#
R28
182kΩ
±1%
OFS
R27
20kΩ
±1%
PWM
SKIP
SKIP
SUS
FB
CCI
CSP
CSN
BSTS
DHS
LXS
DLS
GNDS
POWER GROUND
ANALOG GROUND
5V BIAS
C1 ^SUPPLY
2.2µF
BST
DIODES
C_BST1
0.22µF
N_H1
INPUT*
C_IN
7V TO 24V
R_SENSE1
L1
1.5mΩ
C_OUT
N_L1
R1
3.0kΩ
±1%
C_CCI
470pF
C_BST2
0.22µF
N_H2
N_L2
R3
R2
1kΩ
1kΩ
±1%
±1%
R6
3.0kΩ
±1%
OUTPUT
R4
1kΩ
±1%
R5
1kΩ
±1%
C_IN
R_SENSE2
L2
1.5mΩ
C_OUT
*LOWER INPUT VOLTAGES
REQUIRE ADDITIONAL
INPUT CAPACITANCE.
Figure 12a. Standard 4-Phase Desktop P4 Application Circuit (1st and 2nd Phases—MAX1519/MAX1545 Master)
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