TLE4473GV55-2 Ver la hoja de datos (PDF) - Infineon Technologies

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Fabricante

TLE4473GV55-2

Dual Low Dropout Voltage Regulator

Infineon Technologies 

TLE 4473 GV55-2

Table 1

Pin Definitions and Functions

Pin No. Symbol Function

1

WI

Watchdog input; input for watchdog pulses, positive edge

triggered.

2

RO1 Reset and watchdog output for Q1; open collector output.

Connect to pull-up resistor.

3

RO2 Reset output 2; open collector output. Connect to pull-up resistor.

4

Q2

Stand-by regulator output voltage; block to GND with a capacitor

CQ2 ≥ 10 µF, ESR < 5 Ω at 10 kHz.

5

N.C. Internally not connected; connect to GND.

6

Q1

Main regulator output voltage; output voltage tracked to Q2

voltage; block to GND with a capacitor CQ1 ≥ 10 µF, ESR < 3 Ω at

10 kHz

7

I

Input voltage; block to ground directly at the IC with a ceramic

capacitor.

8

INH1 Inhibit input 1; low level disables Q1, integrated pull-down resistor.

9

INH2 Inhibit input 2; low level at INH2 and INH1 disables Q2 and Q1,

integrated pull-down resistor.

10

D1

Reset Delay 1; connect to ground via a capacitor to set reset delay

for Q1.

11

D2

Reset Delay 2; connect to ground via a capacitor to set reset delay

and watchdog timing for Q2.

12

GND Ground; connect to heatslug.

Heatslug

Interconnect with PCB heatsink area and GND.

Data Sheet

6

Rev. 1.2, 2008-10-28

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