Skip to the content
PCBKitNew board
FX003 on a board, in 3D

FX003

Texas Instruments

-40℃~+85℃@(TA) 1 3V~28V 670kHz Buck Buck Yes WQFN-16-EP(3x3) DC-DC Converters ROHS

Extended
DatasheetJLCPCBLCSCti/FX003
Category
DC DC Converters
Package
WQFN-16-EP(3x3)
Pins
17

Overview

The FX003 is a DC DC Converter made by Texas Instruments in a WQFN-16-EP(3x3) package with 17 pins. -40℃~+85℃@(TA) 1 3V~28V 670kHz Buck Buck Yes WQFN-16-EP(3x3) DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:TPS51219RTER, from EasyEDA) and its footprint (EasyEDA_Cloud:WQFN-16_L3.0-W3.0-P0.50-BL-EP1.7, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2658526).

Symbol

VREF1REFIN2GSNS3VSNS4COMP5TRIP6GND7PGND8V59DL10DH11SW12BST13EN14MODE15PGOOD16EP17
EasyEDA_Cloud:TPS51219RTERFrom EasyEDA

Footprint

EasyEDA_Cloud:WQFN-16_L3.0-W3.0-P0.50-BL-EP1.7From EasyEDA

Parameters

8
Features
Output voltage differential sensing；Light load efficient mode；Cycle-by-cycle current limiting；Overcurrent Protection；Output discharge；Operating status indication
Frequency - Switching
670kHz
Function
Step-down type
Number of Outputs
1
Operating Temperature
-40℃~+85℃@(TA)
Synchronous Rectifier
Yes
Topology
Buck
Voltage - Supply
3V~28V

Order codes

1

Pinout

17
The pins of the FX003
PinNameType
1VREFUnspecified
2REFINUnspecified
3GSNSUnspecified
4VSNSUnspecified
5COMPUnspecified
6TRIPUnspecified
7GNDUnspecified
8PGNDUnspecified
9V5Unspecified
10DLUnspecified
11DHUnspecified
12SWUnspecified
13BSTUnspecified
14ENUnspecified
15MODEUnspecified
16PGOODUnspecified
17EPUnspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/ti/FX003" title="FX003 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/ti/FX003.jpg" alt="FX003" width="1200" height="900">
A picture that opens the part, for a README
[![FX003](https://pcbkit.io/embed/parts/ti/FX003.jpg?size=s)](https://pcbkit.io/parts/ti/FX003)

Questions

Is there a KiCad symbol and footprint for the FX003?

Yes. The symbol is EasyEDA_Cloud:TPS51219RTER and the footprint EasyEDA_Cloud:WQFN-16_L3.0-W3.0-P0.50-BL-EP1.7, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the FX003?

WQFN-16-EP(3x3), with 17 pins. Its footprint is drawn on this page.

Where is the FX003 datasheet?

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

Where can I order the FX003?

JLCPCB lists it as part C2658526, with 0 in stock; the sellers' links on this page open their listings.

What can replace the FX003?

Parts like it in the library: the TPS61391RTE by Texas Instruments and the LM51581QRTERQ1 by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

2