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LM5121MHX

Texas InstrumentsExtended

-40℃~+125℃@(TJ) 1 1MHz 4.5V~65V Boost Boost External Yes HTSSOP-20-EP DC-DC Converters ROHS

Part id
ti/LM5121MHX
Category
DC DC Controllers
Package
HTSSOP-20-EP
Pins
21
In stock
500 at JLCPCB (C1848483)

Overview

The LM5121MHX is a DC DC Controller made by Texas Instruments in a HTSSOP-20-EP package with 21 pins. -40℃~+125℃@(TJ) 1 1MHz 4.5V~65V Boost Boost External Yes HTSSOP-20-EP DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM5121MH_NOPB_C22464760, from EasyEDA) and its footprint (EasyEDA_Cloud:HTSSOP-20_L6.5-W4.4-P0.65-LS6.4-BL-EP-3, from EasyEDA), ready for a KiCad board. 500 are in stock at JLCPCB (part C1848483).

Symbol

CSN3CSP4DG2DS1SLOPE12SS7SW18SYNCIN/RT8PGND15AGND9VIN5UVLO6RES14MODE13LO16HO19FB10EP21COMP11BST20VCC17
EasyEDA_Cloud:LM5121MH_NOPB_C22464760From EasyEDA

Footprint

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EasyEDA_Cloud:HTSSOP-20_L6.5-W4.4-P0.65-LS6.4-BL-EP-3From EasyEDA

Pinout

21
The pins of the LM5121MHX
PinNameType
1DSUnspecified
2DGUnspecified
3CSNUnspecified
4CSPUnspecified
5VINUnspecified
6UVLOUnspecified
7SSUnspecified
8SYNCIN/RTUnspecified
9AGNDUnspecified
10FBUnspecified
11COMPUnspecified
12SLOPEUnspecified
13MODEUnspecified
14RESUnspecified
15PGNDUnspecified
16LOUnspecified
17VCCUnspecified
18SWUnspecified
19HOUnspecified
20BSTUnspecified
21EPUnspecified

Parts like it

5

Questions

Is there a KiCad symbol and footprint for the LM5121MHX?

Yes. The symbol is EasyEDA_Cloud:LM5121MH_NOPB_C22464760 and the footprint EasyEDA_Cloud:HTSSOP-20_L6.5-W4.4-P0.65-LS6.4-BL-EP-3, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM5121MHX?

HTSSOP-20-EP, with 21 pins. Its footprint is drawn on this page.

Where is the LM5121MHX datasheet?

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

Where can I order the LM5121MHX?

JLCPCB lists it as part C1848483, with 500 in stock; the sellers' links on this page open their listings.

What can replace the LM5121MHX?

Parts like it in the library: the LM25122QPWPRQ1 by Texas Instruments, the LT8711EFE#PBF by Analog Devices, the LM25117PMH by Texas Instruments and the LM5035BMHX by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.