tle4473gv55-2 Infineon Technologies Corporation, tle4473gv55-2 Datasheet - Page 6

• Manufacturer Part Number: tle4473gv55-2
• Description: Dual Low Drop Voltage Regulator
• Manufacturer: Infineon Technologies Corporation

Table 1
Pin No. Symbol Function
1
2
3
4
5
6
7
8
9
10
11
12
Heatslug
Target Data Sheet
WI
RO1
RO2
Q2
N.C.
Q1
I
INH1
INH2
D1
D2
GND
Pin Definitions and Functions
Watchdog input; input for watchdog pulses, positive edge
triggered.
Reset and watchdog output for Q1; open collector output.
Connect to pull-up resistor.
Reset output 2; open collector output. Connect to pull-up resistor.
Stand-by regulator output voltage; block to GND with a capacitor
C
Internally not connected; connect to GND.
Main regulator output voltage; output voltage tracked to Q2
voltage; block to GND with a capacitor
10 kHz
Input voltage; block to ground directly at the IC with a ceramic
capacitor.
Inhibit input 1; low level disables Q1, integrated pull-down resistor.
Inhibit input 2; low level at INH2 and INH1 disables Q2 and Q1,
integrated pull-down resistor.
Reset Delay 1; connect to ground via a capacitor to set reset delay
for Q1.
Reset Delay 2; connect to ground via a capacitor to set reset delay
and watchdog timing for Q2.
Ground; connect to heatslug.
Interconnect heatsink area and GND.
Q2
≥ 10 µF, ESR < 5 Ω at 10 kHz.
6
C
Q1
≥ 10 µF, ESR < 3 Ω at
TLE 4473 GV55-2
Rev. 0.2, 2005-07-26