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LM3754SQ on a board, in 3D

LM3754SQ

Texas Instruments

External WQFN-32-EP(5x5) DC-DC Converters ROHS

Extended
DatasheetJLCPCBLCSCti/LM3754SQ
Category
DC DC Converters
Package
WQFN-32-EP(5x5)
Pins
33

Overview

The LM3754SQ is a DC DC Converter made by Texas Instruments in a WQFN-32-EP(5x5) package with 33 pins. External WQFN-32-EP(5x5) DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM3754SQ_NOPB, from EasyEDA) and its footprint (EasyEDA_Cloud:WQFN-32_L5.0-W5.0-P0.50-BL-EP3.1, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2869131).

Symbol

EP33BOOT232PH31CS130CSM29ILIM28CS227EN26IAVE25FREQ24SS23SNSP22SNSM21VDIF20FB19COMP18SGND17VCC16VIN15NBASE14FAULT#13SYNC12SYNCOUT11PGOOD10BOOT19HG18SW17LG16PGND5VDD4LG23SW22HG21
EasyEDA_Cloud:LM3754SQ_NOPBFrom EasyEDA

Footprint

33
EasyEDA_Cloud:WQFN-32_L5.0-W5.0-P0.50-BL-EP3.1From EasyEDA

Parameters

1
Switch tube (built-in/external)
External

Order codes

1

Pinout

33
The pins of the LM3754SQ
PinNameType
1HG2Unspecified
2SW2Unspecified
3LG2Unspecified
4VDDUnspecified
5PGNDUnspecified
6LG1Unspecified
7SW1Unspecified
8HG1Unspecified
9BOOT1Unspecified
10PGOODUnspecified
11SYNCOUTUnspecified
12SYNCUnspecified
13FAULT#Unspecified
14NBASEUnspecified
15VINUnspecified
16VCCUnspecified
17SGNDUnspecified
18COMPUnspecified
19FBUnspecified
20VDIFUnspecified
21SNSMUnspecified
22SNSPUnspecified
23SSUnspecified
24FREQUnspecified
25IAVEUnspecified
26ENUnspecified
27CS2Unspecified
28ILIMUnspecified
29CSMUnspecified
30CS1Unspecified
31PHUnspecified
32BOOT2Unspecified
33EPUnspecified

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Questions

Is there a KiCad symbol and footprint for the LM3754SQ?

Yes. The symbol is EasyEDA_Cloud:LM3754SQ_NOPB and the footprint EasyEDA_Cloud:WQFN-32_L5.0-W5.0-P0.50-BL-EP3.1, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM3754SQ?

WQFN-32-EP(5x5), with 33 pins. Its footprint is drawn on this page.

Where is the LM3754SQ datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the LM3754SQ?

JLCPCB lists it as part C2869131, with 0 in stock; the sellers' links on this page open their listings.

What can replace the LM3754SQ?

Parts like it in the library: the LM5119PSQX by Texas Instruments, the LM3000ASQ by Texas Instruments, the LM3000SQ by Texas Instruments and the LM5119PSQE by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8