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| 型號(hào)： | AS1344-BTDT |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 42V DCDC for OLED; Package Type: TDFN(3x3)-10 |
| 封裝： | TDFN(3x3)-10 |
| 文件頁數(shù)： | 2/19頁 |
| 文件大小： | 1807K |
| 代理商： | AS1344-BTDT |
www.austriamicrosystems.com
Revision 1.05
2 - 19
AS1344
Datasheet - Pinout
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
Pin Descriptions
Table 1. Pin Descriptions
Pin Number
Pin Name
Description
1
EN
Active-High 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
CC
: normal operation.
Power-OK
.
0: V
OUT
< 90% of V
OUTNOM
.
1: V
OUT
> 90% of V
OUTNOM
.
Ground
+0.9V to +3.6V Supply Voltage
. Bypass this pin to GND with a
≥
10μF capacitor.
Ground.
Should be the starpoint of C
IN
and C
OUT
.
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.
Supply Connection.
Connect a resistor between pin VIN and pin VCC for limiting
the input current during startup.
+5.5 to +42V Output Voltage.
This pin also powers the AS1344 after startup.
Bypass this pin to GND with a
≥
4.7μF capacitor.
Feedback Pin
. Feedback input to the g
m
error amplifier. Connect a resistor divider
tap to this pin. The output voltage can be adjusted from 5.5V to 42V by:
V
OUT
= 1.25V[1 + (R
1
/R
2
)]
2
POK
3
4
5
GND
VCC
PGND
6
LX
7
SWOUT
8
VIN
9
VOUT
10
FB
7 SWOUT
3
GND
2
POK
1
EN
10 FB
AS1344
4
VCC
9 VOUT
8 VIN
6 LX
5
PGND
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