参数资料
型号: AS1363-BSTT-30
厂商: ams
文件页数: 9/19页
文件大小: 0K
描述: IC REG LDO 3V .5A SOT23-6
标准包装: 1
稳压器拓扑结构: 正,固定式
输出电压: 3V
输入电压: 最高 5.5V
电压 - 压降(标准): 0.15V @ 500mA
稳压器数量: 1
电流 - 输出: 500mA(最小)
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-6
供应商设备封装: SOT-23-6
包装: 标准包装
其它名称: AS1363-BSTT-30DKR
AS1363
Datasheet - D e t a i l e d D e s c r i p t i o n
8.2 Output Voltage Selection
The AS1363 is available in two versions (see Ordering Information on page 18) . One version can only operate at one fixed output voltage and
the other version can operate with a preset output voltage or with user-adjustable output voltages (1.2V to 5.3V).
?? For the fixed output voltage version connect a capacitor C BYP from pin BYP to V OUT to improve PSRR and Noise performance
(see Figure 16) .
?? To use the factory preset output voltage of the user-adjustable output voltage version, connect pin SET to GND
(see Figure 17) .
?? For configurations using an output voltage other than the factory preset, a voltage-divider from OUT to SET to GND is required, as shown in
(see Figure on page 1) . A value for R 2 in the 25k ? to 100k ? range should be sufficient. Calculate the value for R 1 as:
R 1 = R 2 ? ? --------------------- – 1 ?
? V SETBYP
Where:
V OUT is in a range from 1.2V to 5.3V.
V SET/BYP = 1.2V.
Figure 16. Fixed Output Voltage
V OUT
?
(EQ 1)
V IN
2.0V to 5.5V
C IN
1μF
1
IN
6
OUT
R POK
100k ?
C OUT
2.2μF
V OUT
1.2V to 5.0V
On
Off
3
EN
AS1363
2
POK
To Controller
C BYP
10nF
4
GND
Figure 17. Adjustable Output using preset Output Voltage
5
BYP
V IN
2.5V to 5.5V
On
Off
C IN
1μF
1
IN
3
EN
AS1363-AD
6
OUT
R POK
100k ?
2
POK
To Controller
C OUT
2.2μF
V OUT
2.5V
4
GND
5
SET
www.ams.com/LDO
Revision 1.9
9 - 19
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