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LM2931CD on a board, in 3D

LM2931CD

onsemi

-40℃~+125℃ 1 100mA 140uVrms 2.7V~29.5V 400uA 40V 600mV@(100mA) 60dB@(120Hz) Adjustable Positive Reverse connection protection SOIC-8 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS

Extended
DatasheetJLCPCBLCSConsemi/LM2931CD
Category
Voltage Regulators Linear, Low Drop Out (LDO) Regulators
Package
SOIC-8
Pins
8

Overview

The LM2931CD is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by onsemi in a SOIC-8 package with 8 pins. -40℃~+125℃ 1 100mA 140uVrms 2.7V~29.5V 400uA 40V 600mV@(100mA) 60dB@(120Hz) Adjustable Positive Reverse connection protection SOIC-8 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM2931CDR2G, from EasyEDA) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 6,056 are in stock at JLCPCB (part C133051). 6 open-source boards in 6 repositories on GitHub use it.

Symbol

Output1GND2GND3ADJUST4OUT/INHIBIT5GND6GND7Input8
EasyEDA_Cloud:LM2931CDR2GFrom EasyEDA

Footprint

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

Parameters

12
Features
Reverse polarity voltage protection
Noise
140uVrms
Number of Outputs
1
Operating Temperature
-40℃~+125℃
Output Configuration
Positive
Output Current
100mA
Output Type
Adjustable
Output Voltage
2.7V~29.5V
Power Supply Rejection Ratio (PSRR)
60dB@(120Hz)
Voltage - Supply
40V
Voltage Dropout
600mV@(100mA)
standby current
400uA

Order codes

1

Pinout

8
The pins of the LM2931CD
PinNameType
1OutputUnspecified
2GNDUnspecified
3GNDUnspecified
4ADJUSTUnspecified
5OUT/INHIBITUnspecified
6GNDUnspecified
7GNDUnspecified
8InputUnspecified

Open-source boards using it

All 6
  • 2 layers43.2 × 47 mmCurrent sink or swim, the printed circuit board in 3D

    Current sink or swim

    ALeggeUp/current-sink-or-swim

    Project work from The Online Electronics Aprenticeship program at Contextual Electronics

    29 partsCC-BY-SA-4.0
  • 2 layers80 × 73.9 mmBoya Parametrica V1.0, the printed circuit board in 3D

    Boya Parametrica V1.0

    cepya2022/Water_Quality_Probe-

    The development of open-source code and hardware instruments enables both the creation of new technologies and the redesign and adaptation of existing instruments to the user's specific needs.

    37 parts
  • 2 layers34 × 28 mmCurrentSink, the printed circuit board in 3D

    CurrentSink

    plainsimpledot/currentSink

    1st PCB project building a current sink with uController interface

    42 parts
  • 4 layers122 × 87 mmK64-io pcb, the printed circuit board in 3D

    K64-io pcb

    ratsept/k64-io-pcb

    181 parts
  • 2 layers41.7 × 51.6 mmCurrentSinkOrSwim, the printed circuit board in 3D

    CurrentSinkOrSwim

    rmemory/CurrentSink

    Building a current sink for battery testing

    22 parts
  • 2 layers100 × 100 mmSynchro2, the printed circuit board in 3D

    Synchro2

    waynegramlich/synchro_drive_motor_driver_pcb

    Dual motor drive for dual motor synchro drive PCB

    98 parts

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Questions

Is there a KiCad symbol and footprint for the LM2931CD?

Yes. The symbol is EasyEDA_Cloud:LM2931CDR2G 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 LM2931CD?

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

Where is the LM2931CD datasheet?

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

Where can I order the LM2931CD?

JLCPCB lists it as part C133051, with 6,056 in stock; the sellers' links on this page open their listings.

What can replace the LM2931CD?

Parts like it in the library: the L78L05ACD13 by STMicroelectronics, the L78L05ABD13 by STMicroelectronics, the L78L33ACD13 by STMicroelectronics and the LM317LID by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the LM2931CD?

6 boards in 6 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8