TLE6363_03 Datasheet, PDF (2/28 Pages) Infineon Technologies AG – Multifunctional Voltage Regulator and Watchdog

TLE 6363
Furthermore, the build-in features like under- and overvoltage lockout for boost- and
buck-voltage and the overtemperature shutdown feature increase the reliability of the
TLE 6363 G supply system.
Pin Definitions and Functions
Pin No. Symbol Function
SO-14
1
R
Reference Input; an external resistor from this pin to GND
determines the reference current and the oscillator frequency
2
RO
Reset Output; open drain output from reset comparator with an
internal pull up resistor
3
WDI Watchdog Input; input for the watchdog control signal from the
controller
4
GND Ground; analog signal ground
5
SEN System Enable Output; open drain output from Watchdog
fail-circuit with an internal pull up resistor
6
BUC Buck-Converter Compensation Input; output of internal error
amplifier; for loop-compensation connect an external R-C-series
combination to GND
7
V_CC
Supply Voltage Output; buck converter output; external blocking
capacitor necessary
8
BUO Buck Converter Output; source of the integrated power-DMOS
9
V_BOOST Boost Converter Input; input supply voltage of the IC; coming
from the boost converter output voltage; buck converter input
voltage
10
BDS Buck Driver Supply Input; voltage to drive the buck converter
powerstage
11
OVL Boost Status Output; open drain output from boost PWM
comparator
12
BOFB Boost Converter Feedback Input; connect boost voltage divider
to this pin; internal reference is the boost feedback threshold
V_BOFBTH
13
BOGND Boost-Ground; power signal ground; source of boost converter
power-DMOS
14
BOI
Boost Converter Input; drain of the integrated buck converter
power-DMOS
Data Sheet Rev. 1.2
2
2003-06-02