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参数资料
| 型号： | TLE4254EJS |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | GREEN, PLASTIC, MS-012BA, SOP-8 |
| 文件页数： | 8/21页 |
| 文件大小： | 451K |
| 代理商： | TLE4254EJS |
TLE4254
Application Information
Data Sheet
16
Rev. 1.2, 2009-11-18
Figure 6
Application circuit: Output voltage
V
Q lower than reference voltage VREF
Status Output feedbacked to microcontroller (version GS / EJ S)
In order to obtain a lower output voltage
V
Q at the tracker output than the reference voltage VREF, a voltage divider
feedbacked to microcontroller (version GS / EJ S) has to be used. The output voltage
V
Q then calculates:
With a given reference voltage
V
REF, the desired output voltage VQ and the resistor value R1ADJ, the resistor value
for
R2
ADJ is given by:
Taking into consideration also the effect of the internal EN/ADJ pull-down resistor, the external resistor divider’s
R2
ADJ has to be selected to:
EN/
ADJ
IQ
GND
TLE4254GS
TLE4254EJ S
8
5
1
micro controller
e.g.
C167,
XC16X
TC17xx
VDD
I/O
Main C supply
e.g.
TLE4271-2
TLE4471
TLE6368...
IQ
GND
VBAT
VQ < VREF
R1
ADJ
R2 ADJ
VREF
ST
4
2, 3, 6, 7
I/O
VQ
VREF
R2ADJ
R1ADJ R2ADJ
+
----------------------------------------
=
R2ADJ
R1ADJ
VQ
VREF VQ
–
---------------------------
=
R2ADJ select
,
R2ADJ RPullDown min
,
RPullDown min
,
R2ADJ
–
----------------------------------------------------------
=
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TLE4254EJSXUMA1 | 制造商:Infineon Technologies AG 功能描述:LINEAR VOLTAGE REGULATOR - Tape and Reel |
| TLE4254GA | 功能描述:低压差稳压器 - LDO LDO Lin Adj Neg/Pos -5V to 45V 0.07A RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| TLE4254GAXUMA1 | 制造商:Infineon Technologies AG 功能描述:LDO Regulator Neg/Pos -5V to 45V 0.07A 8-Pin DSO 制造商:Infineon Technologies AG 功能描述:LINEAR VOLTAGE REGULATOR - Tape and Reel 制造商:Infineon Technologies AG 功能描述:LINEAR VOLTAGE REGULATOR - Cut TR (SOS) 制造商:Infineon Technologies AG 功能描述:IC REG LDO ADJ 70MA DSO8 制造商:Infineon Technologies AG 功能描述:IC LOW DROP VOLTAGE TRACKER DSO8 |
| TLE4254GS | 功能描述:低压差稳压器 - LDO LDO Lin Adj Neg/Pos -5V to 45V 0.07A RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| TLE4254GSXUMA1 | 制造商:Infineon Technologies AG 功能描述:LDO Regulator Neg/Pos -5V to 45V 0.07A 8-Pin DSO 制造商:Infineon Technologies AG 功能描述:LINEAR VOLTAGE REGULATOR - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC REG LDO ADJ 70MA DSO8 制造商:Infineon Technologies AG 功能描述:IC LOW DROP VOLTAGE TRACKER DSO8 |
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