42994E 查看數據表（PDF） - Infineon Technologies

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42994E

Low Dropout Fixed Voltage Regulator

Infineon Technologies 

TLE42994

3.3

Pin Assignment TLE42994GM (PG-DSO-14)

Pin Configuration

RADJ

1

D2

GND 3

GND 4

GND 5

EN 6

RO

7

14 SI

13 I

12 GND

11 GND

10 GND

9Q

8 SO

Figure 4 Pin Configuration (top view)

P in Co n fig _ P G- DS O- 1 4 .vsd

3.4

Pin Definitions and Functions TLE42994GM (PG-DSO-14)

Pin

Symbol

1

RADJ

2

D

3, 4, 5

6

GND

EN

7

RO

8

SO

9

Q

10, 11, 12 GND

13

I

14

SI

Data Sheet

Function

Reset Threshold Adjust

connect an external voltage divider to adjust reset threshold;

connect to GND for using internal threshold

Reset Delay Timing

connect a ceramic capacitor to GND for adjusting the reset delay time;

leave open if the reset function is not needed

Ground

connect all pins to PCB and heatsink area

Enable

high signal enables the regulator;

low signal disables the regulator;

connect to I if the Enable function is not needed

Reset Output

open collector output; internally linked to the output via a 20kΩ pull-up resistor;

leave open if the reset function is not needed

Sense Output

open collector output; internally linked to the output via a 20kΩ pull-up resistor;

leave open if the sense comparator is not needed

Output

block to GND with a capacitor close to the IC terminals, respecting the values given

for its capacitance CQ and ESR in the table “Functional Range” on Page 10

Ground

connect all pins to PCB and heatsink area

Input

for compensating line influences, a capacitor to GND close to the IC terminals is

recommended

Sense Input

connect the voltage to be monitored;

connect to Q if the sense comparator is not needed

6

Rev. 1.1, 2009-05-19

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