L4979D STMicroelectronics, L4979D Datasheet - Page 3

IC VOLTAGE REG LDO SO-8

L4979D

Manufacturer Part Number
L4979D
Description
IC VOLTAGE REG LDO SO-8
Manufacturer
STMicroelectronics
Type
Step-Down (Buck)r
Datasheets

Specifications of L4979D

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 (3.9mm Width)
Polarity
Positive
Input Voltage Max
31 V
Output Voltage
5 V
Output Type
Fixed
Dropout Voltage (max)
0.4 V at 150 mA
Output Current
300 mA
Line Regulation
25 mV
Load Regulation
25 mV
Voltage Regulation Accuracy
2 %
Maximum Operating Temperature
+ 150 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Frequency - Switching
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L4979D
Manufacturer:
st
Quantity:
3 000
Part Number:
L4979D
Manufacturer:
ST
Quantity:
1 000
Part Number:
L4979D
Manufacturer:
ST
0
Part Number:
L4979D
Manufacturer:
ST
Quantity:
20 000
Part Number:
L4979D-E
Manufacturer:
ST
0
Part Number:
L4979D013TR
Manufacturer:
st
Quantity:
3 000
Part Number:
L4979D013TR
Manufacturer:
ST
0
Part Number:
L4979D013TR
Manufacturer:
ST
Quantity:
20 000
Part Number:
L4979D013TR
0
Company:
Part Number:
L4979D013TR
Quantity:
5 000
Part Number:
L4979D13TR
Manufacturer:
ST
0
Company:
Part Number:
L4979DTR-E
Quantity:
2 500
Company:
Part Number:
L4979DTR-E
Quantity:
2 500
Part Number:
L4979DTR-S-LF
Manufacturer:
ST
Quantity:
20 000
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Enable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Reset time diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SO-8 thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SO-20 thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SO-8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
SO-20 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Doc ID 10262 Rev 7
3/22

Related parts for L4979D