L4949E STMicroelectronics, L4949E Datasheet - Page 2

IC REG VOLT LDO MULTIFUNCT 8-DIP

L4949E

Manufacturer Part Number
L4949E
Description
IC REG VOLT LDO MULTIFUNCT 8-DIP
Manufacturer
STMicroelectronics
Datasheet

Specifications of L4949E

Regulator Topology
Positive Fixed
Voltage - Output
5V
Voltage - Input
Up to 28V
Voltage - Dropout (typical)
0.3V @ 100mA
Number Of Regulators
1
Current - Output
100mA
Current - Limit (min)
120mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
497-3631

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Contents
Contents
1
2
3
4
5
2/19
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1
2.2
2.3
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1
3.2
3.3
3.4
3.5
3.6
Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1
4.2
4.3
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Supply voltage transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Preregulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Reset circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Sense comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
ECOPACK
SO-8 TP package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
SO-20 TP package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
®
packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Doc ID 4275 Rev 6
L4949E

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