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L6981CDR on a board, in 3D

L6981CDR

STMicroelectronics

-40℃~+150℃@(TJ) 1 1.5A 3.5V~38V 400kHz 850mV~38V Adjustable Buck Buck Built-in Yes SO-8 DC-DC Converters ROHS

Extended
DatasheetJLCPCBLCSCst/L6981CDR
Category
DC DC Converters
Package
SO-8
Pins
8

Overview

The L6981CDR is a DC DC Converter made by STMicroelectronics in a SO-8 package with 8 pins. -40℃~+150℃@(TJ) 1 1.5A 3.5V~38V 400kHz 850mV~38V Adjustable Buck Buck Built-in Yes SO-8 DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:L6982N33DR, from EasyEDA) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3192316).

Symbol

SW1BOOT2VCC3VOUT/FB4EN/CLKIN5AGND6VIN7PGND8
EasyEDA_Cloud:L6982N33DRFrom EasyEDA

Footprint

12345678
Package_SO:SOIC-8_3.9x4.9mm_P1.27mmFrom KiCad's library

Parameters

13
Features
Light load efficient mode；Built-in LDO regulator；Frequency synchronization；Cycle-by-cycle current limiting；Overcurrent Protection
Frequency - Switching
400kHz
Function
Step-down type
Number of Outputs
1
Operating Temperature
-40℃~+150℃@(TJ)
Output Current
1.5A
Output Type
Adjustable
Output Voltage
850mV~38V
Quiescent Current
20uA
Switch tube (built-in/external)
Built-in
Synchronous Rectifier
Yes
Topology
Buck
Voltage - Supply
3.5V~38V

Order codes

1

Pinout

8
The pins of the L6981CDR
PinNameType
1SWUnspecified
2BOOTUnspecified
3VCCUnspecified
4VOUT/FBUnspecified
5EN/CLKINUnspecified
6AGNDUnspecified
7VINUnspecified
8PGNDUnspecified

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Questions

Is there a KiCad symbol and footprint for the L6981CDR?

Yes. The symbol is EasyEDA_Cloud:L6982N33DR and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the L6981CDR?

SO-8, with 8 pins. Its footprint is drawn on this page.

Where is the L6981CDR datasheet?

STMicroelectronics publishes it: the Datasheet link on this page opens it.

Where can I order the L6981CDR?

JLCPCB lists it as part C3192316, with 0 in stock; the sellers' links on this page open their listings.

What can replace the L6981CDR?

Parts like it in the library: the XL1509-5.0E1 by XLSEMI, the XL1509-ADJE1 by XLSEMI, the XL1410E1 by XLSEMI and the MC34063AD by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.

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