AS1343 austriamicrosystems AG, AS1343 Datasheet - Page 2

• Manufacturer Part Number: AS1343
• Description: DC-DC Boost Converter
• Manufacturer: austriamicrosystems AG

AS1343
Datasheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
Pin Descriptions
Table 1. Pin Descriptions
www.austriamicrosystems.com
Pin Number
10
1
2
3
4
5
6
7
8
9
Pin Name
SWOUT
PGND
VOUT
GND
GND
POK
VCC
EN
FB
LX
Active-Low enable Input. A logic low on this pin shuts down the device and
reduces the supply current to 0.1µA.
GND: device in shutdown.
V
Power-OK.
0: V
1: V
Ground
+0.9V to +3.6V Supply Voltage. Bypass this pin to GND with a ≥10µF capacitor.
Ground. Should be the starpoint of C
Inductor. The drain of the internal N-channel MOSFET.
Note: This pin is high impedance in shutdown.
Shutdown Disconnect Switch Out. Disconnects the input from the output during
shutdown.
Ground
+5.5 to +42V Output Voltage. This pin also powers the AS1343 after startup.
Bypass this pin to GND with a ≥4.7µF capacitor.
Feedback Pin. Feedback input to the g
tap to this pin. The output voltage can be adjusted from 5.5V to 42V by:
V
CC
OUT
OUT
OUT
: normal operation.
= 1.25V[1 + (R
< 90% of V
> 90% of V
PGND
GND
POK
VCC
EN
1
2
3
4
5
Revision 1.04
OUTNOM
OUTNOM
AS1343
1
/R
2
)]
.
.
10 FB
9 VOUT
8 GND
7 SWOUT
6 LX
Description
IN
m
and C
error amplifier. Connect a resistor divider
OUT
.
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