TLE4471_09 Datasheet, PDF (3/24 Pages) Infineon Technologies AG – Triple Voltage Regulator

TLE 4471
GND 1
E1 2
I3
Q2 4
REF2 5
R6
DR 7
E2 8
Q1 9
GND 10
20
19
18
17
16
15
14
13
12
11
AEP02865
GND
DW
W
Q3
E3
REF3
EN
N.C.
RADJ
GND
Figure 2 Pin Configuration (top view)
Table 1
Pin Definitions and Functions
Pin No. Symbol Function
1, 10, 11, GND
20
GROUND; all four pins connected to the heat sink
2
E1
Enable 1; Enable for Main Output Q1 and Q2; E1, E2 and E3 are
ored together; connect to GND, if not needed.
3
I
Input; block to ground directly at the IC for line compensation.
4
Q2
Tracking Output Q2; block to GND with min. 10 µF with
ESR < 3 Ω.
5
REF2 Reference Output; Reference Voltage related to Q2.
6
R
Reset Output; the open collector Output is connected to Q1 via an
integrated resistor.
7
DR
Reset Delay; connect a capacitor to GND for reset delay time
adjustment.
8
E2
Enable 2; Enable for Main Output Q1 and Q2; E1, E2 and E3 are
ored together; connect to GND, if not needed.
9
Q1
Main Output Q1; block to GND with min. 22 µF, ESR < 3 Ω.
12
RADJ Reset Switching Threshold Adjust; The reset threshold can be
set individually with an external voltage divider at the pin. If it is
connected straight to GND the reset threshold remains at 4.65 V.
13
NC
Not Connected
Data Sheet
3
Rev. 1.6, 2009-02-03