AS1364
Datasheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
POK 1
EN 2
8 GND
7 SET/BYP
AS1364
IN 3
IN 4
6 OUT
5 OUT
Pin Descriptions
Table 2. Pin Descriptions
Pin Number
1
Pin Name
POK
Description
Note: Open-Drain POK Output.
POK remains low while V
OUT
is below the POK
threshold. Connect a 100kΩ pull-up resistor from this pin to OUT to obtain an output
voltage
Active-Low Shutdown Input.
A logic low disables the output and reduces the
supply current to 0.1µA. In shutdown, the POK output is low and OUT high
impedance.
V
DD
: Normal operation.
GND: Shutdown.
2.0V to 5.5V Supply Voltage.
Bypass with a 4.7µF input capacitor to GND
These inputs are internally
connected, but they also must be externally connected for proper operation.
Regulator Output.
Bypass with a 4.7µF low-ESR output capacitor to GND. Connect
the OUT pins together externally.
Voltage-Setting Input.
Connect to GND to select the factory-preset output voltage.
Connect this pin to an external resistor-divider for adjustable-output operation
(AS1364-AD only)
Bypass Pin.
Connect a 10nF capacitor from this pin to OUT to improve PSRR and
noise performance. (AS1364-AD does not offer this feature)
Ground
2
EN
3, 4
5, 6
IN
OUT
7
SET/BYP
8
GND
www.austriamicrosystems.com
Revision 1.05
2 - 15
AMSCO [ AUSTRIAMICROSYSTEMS AG ]
