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LM2574-3.3BN on a board, in 3D

LM2574-3.3BN

Microchip Technology

-40℃~+125℃@(TJ) 1 3.3V 40V 500mA 52kHz Buck Built-in Fixed No Overcurrent Protection、Cycle-by-cycle current limiting Step-down type PDIP-8 DC-DC Converters

Extended
DatasheetJLCPCBLCSCmicrochip/LM2574-3.3BN
Category
DC DC Converters
Package
PDIP-8
Pins
5

Overview

The LM2574-3.3BN is a DC DC Converter made by Microchip Technology in a PDIP-8 package with 5 pins. -40℃~+125℃@(TJ) 1 3.3V 40V 500mA 52kHz Buck Built-in Fixed No Overcurrent Protection、Cycle-by-cycle current limiting Step-down type PDIP-8 DC-DC Converters.

PCBKit's library has its footprint (Package_DIP:DIP-8_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3191474).

Symbol

The library has no symbol for this part yet.

Footprint

12345678
Package_DIP:DIP-8_W8.89mm_SMDSocket_LongPadsFrom KiCad's library

Order codes

1

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A picture
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A picture that opens the part, for a README
[![LM2574-3.3BN](https://pcbkit.io/embed/parts/microchip/LM2574-3.3BN.jpg?size=s)](https://pcbkit.io/parts/microchip/LM2574-3.3BN)

Questions

Is there a KiCad symbol and footprint for the LM2574-3.3BN?

Yes. the footprint Package_DIP:DIP-8_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM2574-3.3BN?

PDIP-8, with 5 pins. Its footprint is drawn on this page.

Where is the LM2574-3.3BN datasheet?

Microchip Technology publishes it: the Datasheet link on this page opens it.

Where can I order the LM2574-3.3BN?

JLCPCB lists it as part C3191474, with 0 in stock; the sellers' links on this page open their listings.

What can replace the LM2574-3.3BN?

Parts like it in the library: the MC34063ECN by STMicroelectronics, the UC3845AN-TD by TDSEMIC, the DK125 by Shenzhen DongKe Semicon and the MC34063EBN by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

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