参数资料
型号: AS1364-BTDT-AD
厂商: AUSTRIAMICROSYSTEMS AG
元件分类: 基准电压源/电流源
英文描述: 1A LDO, Low Noise
文件页数: 2/19页
文件大小: 787K
代理商: AS1364-BTDT-AD
AS1364
Datasheet - Pin Assignments
www.austriamicrosystems.com
Revision 1.8
2 - 19
4 Pin Assignments
Figure 2. Pin Assignments (Top View)
4.1 Pin Descriptions
Table 2. Pin Descriptions
Pin Number
Pin Name
Description
1
POK
Note:
Open-Drain POK Output
. POK remains low while V
OUT
is below the POK threshold.
Connect a 100k
pull-up resistor from this pin to OUT to obtain an output voltage
(see Figure 1)
.
2
EN
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.
3, 4
IN
2.0V to 5.5V Supply Voltage.
Bypass with a 4.7μF input capacitor to GND
(see Dropout Voltage on
page 11)
. These inputs are internally connected, but they also must be externally connected for proper
operation.
5, 6
OUT
Regulator Output
. Bypass with a 4.7μF low-ESR output capacitor to GND. Connect the OUT pins
together externally.
7
SET/BYP
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
(see Figure 1)
– (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)
8
GND
Ground
Exposed pad
Connect to
Substrate
Connect to PCB metal area for heatsink purposes. May be left open or connected to common ground.
5 OUT
3
IN
2
EN
1
POK
6 OUT
7 SET/BYP
8 GND
AS1364
4
IN
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