MAX8794 Maxim Integrated Products, MAX8794 Datasheet - Page 7

• Manufacturer Part Number: MAX8794
• Description: Low-Voltage DDR Linear Regulator
• Manufacturer: Maxim Integrated Products

PIN
10
1
2
3
4
5
6
7
8
9
REFOUT
PGOOD
NAME
AGND
REFIN
PGND
SHDN
OUTS
OUT
V
IN
CC
_______________________________________________________________________________________
Buffered Reference Output. The output of the unity-gain reference input buffer sources and sinks over
5mA. Bypass REFOUT to AGND with a 0.33µF or greater ceramic capacitor.
Analog Supply Input. Connect to the system supply voltage (+3.3V). Bypass V
greater ceramic capacitor.
Analog Ground. Connect the backside pad to AGND.
External Reference Input. REFIN sets the output regulation voltage (V
Open-Drain Power-Good Output. PGOOD is low when the output voltage is more than 150mV (typ) above
or below the regulation point, during soft-start, and when shut down. 2ms after the output reaches the
regulation voltage during startup, PGOOD becomes high impedance.
Output Sense Input. The OUTS regulation level is set by the voltage at REFIN. Connect OUTS to the
remote DDR termination bypass capacitors. OUTS is internally connected to OUT through a 12kΩ
resistor.
Shutdown Control Input. Connect to V
linear regulator. The reference buffer remains active in shutdown.
Power Ground. Internally connected to the output sink MOSFET.
Output of the Linear Regulator
Power Input. Internally connected to the output source MOSFET.
Low-Voltage DDR Linear Regulator
CC
for normal operation. Connect to analog ground to shut down the
FUNCTION
OUTS
= V
CC
REFIN
Pin Description
to AGND with a 1µF or
).
7