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PDF TLF4949 Data sheet ( Hoja de datos )
| Número de pieza | TLF4949 | |
| Descripción | 5V Low Drop Out Linear Voltage Regulator | |
| Fabricantes | Infineon Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TLF4949 (archivo pdf) en la parte inferior de esta página. Total 23 Páginas | ||
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TLF4949
5V Low Drop Out Linear Voltage Regulator
TLF4949SJ
TLF4949EJ
Data Sheet
Rev. 1.0, 2012-05-07
Automotive Power
1 page  
3 Pin Configuration
3.1 Pin Assignment PG-DSO-8
IN
SI
PRE
D
1
2
3
4
Figure 2 Pin Configuration PG-DSO-8
8 OUT
7 SO
6 RO
5 GND
PG-DSO-8.vsd
TLF4949
Pin Configuration
3.2 Pin Definitions and Functions PG-DSO-8
Pin Symbol
Function
1 IN
Input; block to GND directly at the IC with a ceramic capacitor.
2 SI
Sense Input; if not needed connect to OUT
3 PRE
Preregulator Output;
4D
Reset Delay; to select delay time, connect to GND via capacitor.
5 GND
Ground
6 RO
Reset Output; open-collector output. Keep open, if not needed.
7 SO
Sense Output; open-collector output. Keep open, if not needed.
8 OUT
5-V Output; connect to GND with a capacitor ≥ 4.7μF, ESR < 10 Ω.1) 2)
1) For the usage of capacitors with very low ESR-values it is recommended to use a small 1Ω resistor in series.
2) Measured at f = 10kHz.
Data Sheet
5 Rev. 1.0, 2012-05-07
5 Page 
TLF4949
4.4.4
Preregulator
Electrical Characteristics: Preregulator
VIN = 14 V, Tj = -40°C to +125°C, all voltages with respect to ground, direction of current as shown in Figure 4
“Application Diagram” on Page 15 (unless otherwise specified)
Pos. Parameter
Symbol
Limit Values
Unit Conditions
Min. Typ. Max.
Preregulator
4.4.27 Preregulator Output Voltage
4.4.28 Preregulator Output Current
VPRE 4.5 5
IPRE
–
–
6 V IPRE = 10 µA
10 µA –
Data Sheet
11 Rev. 1.0, 2012-05-07
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet TLF4949.PDF ] | |
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