L4979D-E STMicroelectronics, L4979D-E Datasheet - Page 2
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L4979D-E
Manufacturer Part Number
L4979D-E
Description
IC REG PROGR WATCHDOG 8SOIC
Manufacturer
STMicroelectronics
Type
Step-Down (Buck)r
Datasheet
1.L4979DTR-E.pdf
(22 pages)
Specifications of L4979D-E
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
5V
Current - Output
150mA
Voltage - Input
5.6 ~ 31 V
Operating Temperature
-40°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.236", 6.0mm Width)
Power - Output
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Frequency - Switching
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Contents
1
2
3
4
5
6
2/22
Block diagram and pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1
2.2
Application informations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1
3.2
3.3
Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1
4.2
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.1
5.2
5.3
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SO-8 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SO-20 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
ECOPACK
SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SO-20 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
®
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Doc ID 10262 Rev 7