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參數(shù)資料
| 型號： | TLE4278G |
| 廠商： | SIEMENS A G |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 5-V Low-Drop Fixed Voltage Regulator |
| 中文描述： | 5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO14 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大?。?/td> | 88K |
| 代理商： | TLE4278G |
TLE 4278 G
Semiconductor Group
12
1998-11-01
Reset Switching Threshold
The present default value is 4.65 V. When using the TLE 4278 the reset threshold can
be set to 3.5 V <
V
RTH
< 4.6 V by connecting an external voltage divider to pin RADJ. The
calculation can be easily done since the reset adjust input current can be neglected. If
this feature is unused, the pin can be left open or even better connected to GND.
R
1
=
R
2
×
(
V
RTH
–
V
ref
)/
V
ref
Definitions:
V
RT
= Reset threshold
V
ref
= comparator reference voltage, typical 1.35 V
(Reset adjust input current
≈
50 nA)
Figure 6
The reset output pin is internally connected to the 5 V-output Q via a 30 k
pull-up
resistor. Down to an output voltage
V
Q
of typical 1 V the reset LOW signal at pin RO in
generated.
For the timing of the reset feature please refer to the data sheet, figure 5.
AES02553
Band-Gap-
Reference
V
RO
RADJ
Ι
GND
V
Q
Reference
Band-Gap-
>1
+
-
1.35 V
1.35 V
30 k
R
1
2
R
TLE 4278 G
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|---|---|
| TLE4279 | 5-V Low-Drop Fixed Voltage Regulator |
| TLE4279A | 5-V Low-Drop Fixed Voltage Regulator |
| TLE4279G | 5-V Low-Drop Fixed Voltage Regulator |
| TLE4279GL | 5-V Low-Drop Fixed Voltage Regulator |
| TLE4279GM | 5-V Low-Drop Fixed Voltage Regulator |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TLE4278G_07 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:5-V Low Drop Fixed Voltage Regulator Output voltage tolerance a?¤ ?±2% |
| TLE4278GGEG | 制造商:Infineon Technologies AG 功能描述:LDO 5V 150MA 2 |
| TLE4278GNT | 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V 0.2A 14-Pin DSO T/R |
| TLE4278GXT | 功能描述:低壓差穩(wěn)壓器 - LDO Voltage Regulator 5V RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TLE4278GXUMA1 | 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V 0.2A 14-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 5V 0.15A 14DSO |
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