The MAX8563/MAX8564/MAX8564A ultra-low-output dual
and triple LDO controllers allow flexible and inexpensive
point-of-load voltage conversion in motherboards,
desknotes, notebooks, and other applications.
These parts feature a 0.5V reference voltage with ±1%
accuracy providing tight regulation of the output voltage.
The MAX8563 has three n-channel MOSFET controller
outputs, and the MAX8564/MAX8564A has two
controller outputs.
Each controller output is adjustable from 0.5V to 3.3V
when VDD = 12V and between 0.5V and 1.8V when VDD
= 5V. Each output is independently enabled and asserts
a POK signal when the output reaches 94% of the set
value. Each output is protected against a soft short-circuit
condition by an undervoltage comparator that disables
the output when it drops to under 80% of the set voltage
for more than 50µs. For a catastrophic short condition, the
regulators are shut down immediately if the output drops
below 60% of the set voltage.
The MAX8563 is available in a 16-pin QSOP
package, and the MAX8564/MAX8564A are available
in a 10-pin µMAX® package.
Key Features
Applications/Uses
MAX8563: 3 Outputs
MAX8564/MAX8564A: 2 Outputs
±1% Feedback Regulation
Adjustable Output Voltage Down to 0.5V
Can Use Ceramic Output Capacitors
Wide Supply Voltage Range Permits Operation from 5V or 12V Rails
Individual Enable Control and POK Signal Allows Sequencing
Overload Protection Against Soft Short-Circuit Condition
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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