TLE4470 Datasheet, PDF (3/22 Pages) Siemens Semiconductor Group – Dual Low-Drop Voltage Regulator

TLE 4470
Pin Definitions and Functions
P-DSO-20-6
Pin No.
1
Symbol
RADJ
2
D
3
4, 5, 6, 7
8
DIS
GND
RQ
9
SQ
10
Q1
11
ADJ2
12, 13
Q2
14, 15, 16, 17 GND
18
I2
19
I1
20
SI
Function
Reset switching threshold adjust; for setting the reset
switching threshold connect to a voltage divider from Q1 to
GND. If this input is connected to GND, the reset is
triggered at the internal threshold.
Reset delay; connect a capacitor C_D to GND for delay time
adjustment
Disable input main regulator; Q2 disabled with high signal
Ground
Reset output; the open collector output is connected to Q1
via an integrated 30 kΩ resistor
Sense output; the open collector output is connected to Q1
via an integrated 30 kΩ resistor
Stand-by regulator output voltage; block to GND with a
capacitor C_Q1 ≥ 6 µF, ESR < 10 Ω at 10 kHz
Main regulator adjust input; Q2 can be set to higher
values by an external divider
Main regulator output voltage; block to GND with a
capacitor C_Q2 ≥ 10 µF, ESR < 10 Ω at 10 kHz
Ground
Main regulator input voltage; block to GND directly at the
IC with a ceramic capacitor
Stand-by regulator input voltage; block to GND directly at
the IC with a ceramic capacitor
Sense comparator input
Semiconductor Group
3
1998-11-01