AS1324 AMSCO [austriamicrosystems AG], AS1324 Datasheet - Page 2

• Manufacturer Part Number: AS1324
• Description: 1.5MHz, 600mA, DC/DC Step-Down Regulator
• Manufacturer: AMSCO [austriamicrosystems AG]

AS1324
Data Sheet - P i n o u t a n d P a c k a g i n g
4 Pinout and Packaging
Pin Assignments
Figure 2. Pin Assignments (Top View)
Pin Descriptions
Table 2. Pin Descriptions
www.austriamicrosystems.com
Number
Pin
1
2
3
4
5
Pin Name
VOUT
GND
VFB
SW
VIN
GND
EN
SW
EN
1
2
3
Enable Input. Driving this pin above 1.5V enables the device. Driving this pin below 0.3V
puts the device in shutdown mode. In shutdown mode all functions are disabled while SW
goes high impedance, drawing <1µA supply current.
Note: This pin should not be left floating.
Ground.
Switch Node Connection to Inductor. This pin connects to the drains of the internal main
and synchronous power MOSFET switches.
Input Supply Voltage. This pin must be closely decoupled to GND with a ≥ 4.7µF ceramic
capacitor. Connect to any supply voltage between 2.7 to 5.5V.
Feedback Pin. This pin receives the feedback voltage from the external resistor divider
across the output. (Adjustable voltage variant only.)
Output Voltage Feedback Pin. An internal resistor divider steps the output voltage down
for comparison to the internal reference voltage. (Fixed voltage variants only.)
AS1324
5 VFB
4 VIN
Revision 1.03
GND
Description
SW
EN
1
2
3
AS1324-12/
AS1324-15/
AS1324-18
5 VOUT
4 VIN
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