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參數(shù)資料
| 型號： | TLE4470 |
| 廠商： | SIEMENS AG |
| 英文描述： | Dual Low-Drop Voltage Regulator |
| 中文描述： | 雙低壓降穩(wěn)壓器 |
| 文件頁數(shù)： | 2/22頁 |
| 文件大?。?/td> | 121K |
| 代理商： | TLE4470 |
TLE 4470
Semiconductor Group
2
1998-11-01
TLE 4470 G type (P-DSO-20-6 package).
V
Q1
is compared to the voltage at pin VA,
which is proportional to the output voltage
V
Q2
. A control amplifier drives the base of the
series PNP transistor via a buffer.
The main output voltage
V
Q2
is tracked to the accuracy of the stand by output.
For the TLE 4470 GS (P-DSO-14-4 package) the output voltage is fixed to 5 V.
To save energy e.g. in battery powered body electronic applications, the main regulator
can be switched off via the disable input, which causes the current consumption to drop
to 180
μ
A typical.
Two additional features of the TLE 4470 are an early warning comparator (can be used
e.g. to monitor the supply voltage
V
I
) and reset generator with an adjustable reset delay
time. The TLE 4470 G (P-DSO-20-6 package) has in addition an adjustable reset
switching threshold. This feature is useful with microprocessors which guarantee a safe
operation down to voltages below the internally set reset threshold of 4.65 V typical.
Two functions are included in the reset generator, a power on reset and an under-voltage
reset. The power on reset feature is necessary for a defined start of the microprocessor
when switching on the application. The reset LOW signal is generated for a certain delay
time after the output voltage
V
Q1
of the regulator has surpassed the reset threshold. An
external delay capacitor sets the delay time. The under voltage reset circuit supervises
the stand-by output voltage. In case
V
Q1
falls below the reset switching threshold the
reset output is set LOW after a short reaction time. The reset LOW signal is generated
down to an output voltage
V
Q1
of 1 V.
Pin Configuration
(top view)
Figure 1
GND
GND
GND
Q2
10
8
9
7
6
3
4
5
2
1
20
19
18
17
16
15
14
13
12
11
GND
GND
DIS
GND
D
GND
RQ
SQ
Q1
SI
Ι
Ι
AEP02151
RADJ
GND
ADJ2
Q2
1
2
GND
Q2
Q1
7
6
3
4
5
2
1
14
13
12
11
10
9
8
GND
RQ
SQ
GND
GND
DIS
SI
Ι
GND
AEP02152
D
GND
P-DSO-20-6
P-DSO-14-4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TLE4470G | Dual Low-Drop Voltage Regulator |
| TLE4470GS | Dual Low-Drop Voltage Regulator |
| TLE4923 | Dynamic Differential Hall Effect Sensor IC |
| TLE4935 | Uni- and Bipolar Hall IC Switches for Magnetic Field Applications |
| TLE4905 | Uni- and Bipolar Hall IC Switches for Magnetic Field Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLE4470_08 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Dual Low-Drop Voltage Regulator Very low dropout |
| TLE4470G | 功能描述:低壓差穩(wěn)壓器 - LDO LOW DROPOUT REGULATOR 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(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TLE4470GNT | 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V5V 0.18A/0.35A 20-Pin DSO |
| TLE4470GNTMA1 | 制造商:Infineon Technologies AG 功能描述:LDO Regulator Pos 5V5V 0.18A/0.35A 20-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/ADJ 20DSO |
| TLE4470GS | 功能描述:低壓差穩(wěn)壓器 - LDO LOW DROPOUT REGULATOR 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(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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