参数资料
型号: TLV431AFTA
厂商: Diodes Inc
文件页数: 11/14页
文件大小: 0K
描述: IC VREF SHUNT ADJ SOT-23
标准包装: 1
基准类型: 分流器,可调式
输出电压: 1.24 V ~ 18 V
容差: ±1%
输入电压: 最高 18V
通道数: 1
电流 - 阴极: 100µA
电流 - 输出: 15mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: TO-236-3,SC-59,SOT-23-3
供应商设备封装: SOT-23-3
包装: 标准包装
其它名称: TLV431AFTADKR
A Product Line of
Diodes Incorporated
TLV431
Application Notes (cont.)
Printed Circuit Board Layout Considerations (cont.)
V OUT = V REF ? 1 +
?
V in
AP1117 or AP1084
Vin VR1 Vout
V out
?
?
R1 ?
R 2 ?
V IN ? ( V OUT ? V REG )
I B
R3
GND
1.2 V
R1
V OUT ≥ ( V REG + V REF )
R 3 =
I B
TLV431 ?
C1
0.1μF
GND
V REF
R2
0 . 1 mA ≤ I B ≤ 18 mA
(All features of the regulator
such as short circuit
protection, thermal shutdown,
etc, are maintained.)
Figure 7. Adjustable Linear Voltage Regulator
Figure 7 is similar to Figure 6 with adjustability added. Note the addition of R3. This is only required for the AP1117 due to the fact that its ground
or adjustment pin can only supply a few micro-amps of current at best. R3 is therefore needed to provide sufficient bias current for the TLV431.
Ordering Information
Tol.
1%
0.5%
0.2%
Part Number
TLV431AE5TA
TLV431AFTA
TLV431AH6TA
TLV431BE5TA
TLV431BFTA
TLV431BH6TA
TLV431TFTA
Package
SOT25
SOT23
SC70-6
(SOT363)
SOT25
SOT23
SC70-6
(SOT363)
SOT23
Part Mark
V1A
V1A
V1A
V1B
V1B
V1B
V1T
Status
Active
Active
Active
Active
Active
Active
Active
Reel Size
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
Tape Width
8mm
8mm
12mm
8mm
8mm
12mm
8mm
Quanity per
Reel
3000
3000
1000
3000
3000
1000
3000
TLV431
Document number: DS32088 Rev. 6 - 2
11 of 14
October 2012
? Diodes Incorporated
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