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MAX8707 Datenblatt(PDF) 21 Page - Maxim Integrated Products

Teilenummer MAX8707
Bauteilbeschribung  Multiphase, Fixed-Frequency Controller for AMD Hammer CPU Core Power Supplies
PDF  37 Pages
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Hersteller  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX8707 Datenblatt(HTML) 21 Page - Maxim Integrated Products

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Multiphase, Fixed-Frequency Controller for
AMD Hammer CPU Core Power Supplies
______________________________________________________________________________________
21
MANUFACTURER
WEBSITE
BI Technologies
www.bitechnologies.com
Central Semiconductor
www.centralsemi.com
Coilcraft
www.coilcraft.com
Coiltronics
www.coiltronics.com
Fairchild Semiconductor
www.fairchildsemi.com
International Rectifier
www.irf.com
Kemet
www.kemet.com
Panasonic
www.panasonic.com
Sanyo
www.secc.co.jp
Siliconix (Vishay)
www.vishay.com
Sumida
www.sumida.com
Taiyo Yuden
www.t-yuden.com
TDK
www.component.tdk.com
TOKO
www.tokoam.com
Table 2. Component Suppliers
SHDN
SUS
SKIP
OFS
OUTPUT
VOLTAGE
OPERATING MODE
GND
X
X
X
GND
Low-Power Shutdown Mode. PWM_ outputs are forced low,
and the controller is disabled. The supply current drops to
10µA (max).
VCC
GND
GND
GND or REF
D0–D4
(no offset)
Normal Operation. The no-load output voltage is determined
by the selected VID DAC code (D0–D4, Table 4).
VCC
GND
VCC
GND or REF
D0–D4
(no offset)
Pulse-Skipping Operation. When SKIP is pulled high, the
MAX8707 immediately enters pulse-skipping operation
allowing automatic PWM/PFM switchover under light loads.
The VROK upper threshold is blanked.
VCC
GND
X
0 to 0.8V
or
1.2V to 2.0V
D0–D4
(plus offset)
Deep-Sleep Mode. The no-load output voltage is determined
by the selected VID-DAC code (D0–D4, Table 4) plus the
offset voltage set by OFS.
VCC
VCC
XX
SUSV
(no offset)
Suspend Mode/One Phase Skip. The no-load output voltage
is determined by the suspend voltage present on SUSV,
overriding all other active modes of operation.
VCC
X
X
X
GND
Fault Mode. The fault latch has been set by either UVP or
thermal shutdown. The controller remains in FAULT mode
until VCC power is cycled or SHDN toggled.
Table 3. Operating-Mode Truth Table
X = Don’t Care



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