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LM2574YN on a board, in 3D

LM2574YN

Microchip Technology

-40℃~+125℃@(TJ) 1 1.23V~37V 40V 500mA 52kHz Adjustable Buck Buck Built-in No PDIP-8 DC-DC Converters ROHS

Extended
DatasheetJLCPCBLCSCmicrochip/LM2574YN
Category
DC DC Converters
Package
PDIP-8
Pins
8

Overview

The LM2574YN is a DC DC Converter made by Microchip Technology in a PDIP-8 package with 8 pins. -40℃~+125℃@(TJ) 1 1.23V~37V 40V 500mA 52kHz Adjustable Buck Buck Built-in No PDIP-8 DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM2574-3.3YN, from EasyEDA) and its footprint (Package_DIP:DIP-8_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C641091).

Symbol

FB1SIG GND2ON/OFF3PWR GND4VIN5NC6OUTPUT7NC8
EasyEDA_Cloud:LM2574-3.3YNFrom EasyEDA

Footprint

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

Parameters

13
Features
Overcurrent Protection, Cycle-by-cycle current limiting
Frequency - Switching
52kHz
Function
Step-down type
Number of Outputs
1
Operating Temperature
-40℃~+125℃@(TJ)
Output Current
500mA
Output Type
Adjustable
Output Voltage
1.23V~37V
Quiescent Current
5mA
Switch tube (built-in/external)
Built-in
Synchronous Rectifier
No
Topology
Buck
Voltage - Supply
40V

Order codes

1

Pinout

8
The pins of the LM2574YN
PinNameType
1FBUnspecified
2SIG GNDUnspecified
3ON/OFFUnspecified
4PWR GNDUnspecified
5VINUnspecified
6NCUnspecified
7OUTPUTUnspecified
8NCUnspecified

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Questions

Is there a KiCad symbol and footprint for the LM2574YN?

Yes. The symbol is EasyEDA_Cloud:LM2574-3.3YN and 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 LM2574YN?

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

Where is the LM2574YN datasheet?

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

Where can I order the LM2574YN?

JLCPCB lists it as part C641091, with 0 in stock; the sellers' links on this page open their listings.

What can replace the LM2574YN?

Parts like it in the library: the MC34063ECN by STMicroelectronics, the MC34063EBN by STMicroelectronics, the EG1182 by EG Micro and the MC34063N by HGSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8