tle4473 Infineon Technologies Corporation, tle4473 Datasheet - Page 5

• Manufacturer Part Number: tle4473
• Description: Dual Low Drop Voltage Regulator
• Manufacturer: Infineon Technologies Corporation

Figure 3
Table 1
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
Heatsink
Data Sheet
Symbol Function
WI
RO2
RO1
Q2
Q1
N.C.
I
INH1
INH2
D2
D1
GND
N. C.
Pin Configuration TLE 4473 GV53, TLE 4473 GV52 (top view)
Pin Definitions and Functions (TLE 4473 GV53, TLE 4473 GV52)
Watchdog input; input for watchdog pulses, positive edge
triggered
Reset output for Q2; open collector output
Reset and watchdog output for Q1; open collector output
Output voltage 2 (5 V); block to GND with a capacitor
ESR < 5 Ω at 10 kHz or
Output voltage 1 (3.3 V/2.6 V); block to GND with a capacitor
C
Not connected; connect to GND
Input voltage; block to GND directly at the IC with a ceramic
capacitor.
Inhibit input 1; low level at INH2 and INH1 disables Q2 and Q1
Inhibit input 2; low level disables Q2
Reset Delay 2; connect a capacitor to set reset delay for Q2
Reset Delay 1; connect a capacitor to GND to set reset delay and
watchdog timing for Q1
Ground
Not connected; connect to GND
Q1
≥ 10 µF, ESR < 5 Ω at 10 kHz
RO2
RO1
N.C.
Q2
Q1
WI
1
2
3
4
5
6
P-DSO-12-6
5
C
AEP03318_4473gv53.VSD
Q2
≥ 10 µF, ESR < 4 Ω at 10 kHz
12
11
10
9
8
7
Pin 6 and heat slug should be connected to GND
GND
D1
D2
INH2
INH1
I
Rev. 1.0, 2004-07-14
TLE 4473 GV53
TLE 4473 GV52
C
Q2
≥ 22 µF,