AS1324 データシートの表示（PDF） - austriamicrosystems AG
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AS1324 Datasheet PDF : 21 Pages
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AS1324
Datasheet - Pin Assignments
4 Pin Assignments
Figure 2. Pin Assignments (Top View)
EN 1
5 VFB
GND 2
AS1324
SW 3
4 VIN
EN 1
5 VOUT
GND 2
AS1324-12/
AS1324-15/
AS1324-18
SW 3
4 VIN
4.1 Pin Descriptions
Table 2. Pin Descriptions
Pin Number
Pin Name
1
EN
2
GND
3
SW
4
VIN
VFB
5
VOUT
Description
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.)
www.ams.com/DC-DC_Step-Up/AS1324
Revision 1.06
2 - 21
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