Datasheet

TLE 4299
Datasheet 13 Rev. 1.1, 2007-10-17
Figure 7 Application Diagram with Inhibit Function TLE4299 GMV33
The TLE 4299 supplies a regulated 3.3 V output voltage with an accuracy of 2% for an
input voltage between 4.4 V and 45 V in the temperature range of
T
j
= – 40 to 150 °C, in
an output current range of 1 mA to 100 mA.
The device is capable to supply 150 mA with an accuracy of 3%. For protection at high
input voltage above 25 V, the output current is reduced (SOA protection).
An input capacitor is necessary for compensating line influences and to limit steep input
edges. A resistor of approx. 1 Ω in series with
C
I
, can damp the LC of the input inductivity
and the input capacitor.
The voltage regulator requires for stability an output capacitor
C
Q
of at least 22 µF with
an 0.4Ω < ESR < 3.7Ω for the whole load- and temperature range. For more detailed
information, refer to the characteristical curves.
AES03106
Current
and
Saturation
Control
Band-
Gap-
Reference
TLE 4299
Reset
Control
RO
Q
I
D
C
I
1
V
BAT
C
D
GND
R
ADJ1
P
R
SI1
R
SI2
Reference
SI
R
SO
R
RO
R
ADJ2
SO
RADJ
C
I
2
Inhibit
Logic
INH
From
KI. 15
C
Q1
22 F
C
Q2