Data Sheet, Rev. 1.1, January 2010
TLE42744
Low Dropout Linear Voltage Regulator
Automotive Power
Low Dropout Linear Voltage Regulator
TLE42744
1
Features
•
•
•
•
•
•
•
•
•
•
Overview
Very Low Current Consumption
Output Voltages 5 V and 3.3 V
±2%
Output Current up to 400 mA
Very Low Dropout Voltage
Output Current Limitation
Reverse Polarity Protection
Overtemperature Shutdown
Wide Temperature Range
From -40 °C up to 150 °C
Green Product (RoHS compliant)
AEC Qualified
PG-TO252-3
PG-SSOP-14 exposed pad
PG-TO263-3
Description
PG-SOT223-4
The TLE42744 is a monolithic integrated low dropout voltage regulator for load currents up to 400 mA. An input
voltage up to 40 V is regulated to
V
Q,nom
= 5 V / 3.3 V with a precision of
±2%.
The device is designed for the harsh
environment of automotive applications. Therefore it is protected against overload, short circuit and
overtemperature conditions by the implemented output current limitation and the overtemperature shutdown
circuit. The TLE42744 can be also used in all other applications requiring a stabilized 5 V / 3.3 V voltage.
Due to its very low quiescent current the TLE42744 is dedicated for use in applications permanently connected to
V
BAT
.
Type
TLE42744DV50
TLE42744GV50
TLE42744EV50
TLE42744DV33
TLE42744GV33
TLE42744GSV33
Data Sheet
Package
PG-TO252-3
PG-TO263-3
PG-SSOP-14 exposed pad
PG-TO252-3
PG-TO263-3
PG-SOT223-4
2
Marking
42744V5
42744V5
42744V5
42744V33
42744V33
42744V33
Rev. 1.1, 2010-01-13
TLE42744
Block Diagram
2
Block Diagram
Temperature
Sensor
Saturation
Control and
Protection
Circuit
Q
Control
Amplifier
Buffer
Ι
Bandgap
Reference
GND
AEB01959
Figure 1
Block Diagram
Data Sheet
3
Rev. 1.1, 2010-01-13
TLE42744
Pin Configuration
3
3.1
Pin Configuration
Pin Assignment PG-TO252-3, PG-TO263-3 and PG-SOT223-4
GND
GND
4
1
Ι
Q
3
1
I
2
GND
PinConfig_PG-SOT223-
4.vsd
3
Q
AEP02561
Ι
GND Q
AEP02281
Figure 2
Pin Configuration (top view)
3.2
Pin No.
1
2
3
Pin Definitions and Functions PG-TO252-3, PG-TO263-3and PG-SOT223-4
Symbol Function
I
GND
Q
Input
block to ground directly at the IC with a ceramic capacitor
Ground
internally connected to heat slug
Output
block to ground with a capacitor close to the IC terminals, respecting the values given
for its capacitance and ESR in
“Functional Range” on Page 7
Heat Slug
internally connected to GND;
connect to GND and heatsink area
Heat Slug / 4
–
Data Sheet
4
Rev. 1.1, 2010-01-13
TLE42744
Pin Configuration
3.3
Pin Assignment PG-SSOP-14 exposed pad
Figure 3
Pin Configuration (top view)
3.4
Pin No.
Pin Definitions and Functions PG-SSOP-14 exposed pad
Symbol Function
n.c.
GND
n.c.
Q
not connected
can be open or connected to GND
Ground
not connected
can be open or connected to GND
Output
block to ground with a capacitor close to the IC terminals, respecting the values given
for its capacitance and ESR in
“Functional Range” on Page 7
Input
block to ground directly at the IC with a ceramic capacitor
Exposed Pad
connect to GND and heatsink area
1, 2, 3, 5, 6, 7
4
8, 10, 11, 12,
14
9
13
Pad
I
–
Data Sheet
5
Rev. 1.1, 2010-01-13
京公网安备 11010802033920号
EEWORLD
