TLE4296-2_14 Datasheet, PDF (9/12 Pages) Infineon Technologies AG – Low Drop Voltage Regulator

TLE4296-2
Application Information
6
Application Information
Note: The following information is given as a hint for the implementation of the device only and shall not be
regarded as a description or warranty of a certain functionality, condition or quality of the device.
V_Q,nom + 0.5V to 45V
Ι₃
4Q
Inhibit
C_Ι
100 nF
TLE 4296-2G
INH
1
2,5
GND
3.0V / 3.3V / 5.0V
C_Q
4.7 μF
e.g. TDK
C3216X7R1C475M
AES02313_4296-2
Figure 3 Application Diagram
In the TLE4296-2 the output voltage is divided and compared to an internal reference of 2.5 V typical. The
regulation loop controls the output to achieve a stabilized output voltage.
Figure 3 shows a typical application circuit. In order to maintain the stability of the control loop the TLE4296-2
output requires an output capacitor C_Q of at least 3.3 μF with a maximum permissible ESR of 2 Ω. It is
recommended to use a multi layer ceramic capacitor for C_Q, e.g. the TDK C3216X7R1C475M with a nominal
capacitance of 4.7 μF. Aluminum electrolytic as well as tantalum capacitors do not cover the required ESR range
over the full operating temperature range of T_j = -40 °C to +150 °C.
At the input of the regulator an input capacitor is necessary for compensating line influences (100 nF ceramic
capacitor recommended). A resistor of approx. 1 Ω in series with C_I, can damp any oscillation occurring due the
input inductivity and the input capacitor. If the regulator is sourced via long input lines of several meters it is
recommended to place an additional electrolytic capacitor ≥ 47 μF at the input.
Data Sheet
9
Rev. 1.13, 2014-03-18