Skip to the content
PCBKitNew board
LM3478MA on a board, in 3D

LM3478MA

Texas Instruments

-40℃~+125℃@(TJ) 1 1MHz 2.97V~40V Boost Boost、SEPIC、Flyback External No SOIC-8 DC-DC Converters ROHS

Extended
DatasheetJLCPCBLCSCti/LM3478MA
Category
DC DC Converters
Package
SOIC-8
Pins
8

Overview

The LM3478MA is a DC DC Converter made by Texas Instruments in a SOIC-8 package with 8 pins. -40℃~+125℃@(TJ) 1 1MHz 2.97V~40V Boost Boost、SEPIC、Flyback External No SOIC-8 DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (Regulator_Controller:LM3478MA, from KiCad's library) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 118 are in stock at JLCPCB (part C1530061). 22 open-source boards in 15 repositories on GitHub use it.

Symbol

I_{SEN}1COMP2FB3AGND4PGND5DR6FA/SD7V_{IN}8
Regulator_Controller:LM3478MAFrom KiCad's library

Footprint

12345678
Package_SO:SOIC-8_3.9x4.9mm_P1.27mmFrom KiCad's library

Parameters

11
Features
Adjustable current limiting
Frequency - Switching
1MHz
Function
Boost
Number of Outputs
1
Operating Temperature
-40℃~+125℃@(TJ)
Output Type
Adjustable
Quiescent Current
5uA
Switch tube (built-in/external)
External
Synchronous Rectifier
No
Topology
Flyback
Voltage - Supply
2.97V~40V

Order codes

1

Pinout

8
The pins of the LM3478MA
PinNameType
1I_{SEN}Input
2COMPInput
3FBInput
4AGNDPower in
5PGNDPower in
6DROutput
7FA/SDInput
8V_{IN}Power in

Open-source boards using it

All 22
  • 2 layers140 × 72.5 mmNixie proj, the printed circuit board in 3D

    Nixie proj

    dm2lct/Nixieclock_kit

    This is a Nixie-clock controlled by a ESP8266 module with NTP and MQTT support.

    119 parts9GPL-3.0
  • 2 layers90 × 55 mmOTlight, the printed circuit board in 3D

    OTlight

    opeRaptor/OTlite

    obsolete;time lite, IoT Nixie Tube Nixie Display

    86 parts5
  • 2 layers154 × 54 mmVfd display, the printed circuit board in 3D

    Vfd display

    RemiFM/VFD-Power-Supply

    Power supply for a vacuum fluorescent display.

    80 parts2
  • 4 layers127 × 76.2 mmIn9 Music Visualizer RevC, the printed circuit board in 3D

    In9 Music Visualizer RevC

    cadenhillis/IN9-Music-Visualizer

    Teensy 3.6 Based Music Visualizer utilizing the built-in audio library

    105 parts
  • 4 layers86.4 × 68.6 mmCapstone, the printed circuit board in 3D

    Capstone

    camerondm9/ece4600capstone

    Code for our capstone project

    238 parts
  • 2 layers88.4 × 68.1 mmHardware V1.4, the printed circuit board in 3D

    Hardware V1.4

    jscastonguay/Environmental-Data-Acquisition-System-Hardware

    Wireless Weather Station - Hardware

    43 partsMIT

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/ti/LM3478MA" title="LM3478MA 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/LM3478MA.jpg" alt="LM3478MA" width="1200" height="900">
A picture that opens the part, for a README
[![LM3478MA](https://pcbkit.io/embed/parts/ti/LM3478MA.jpg?size=s)](https://pcbkit.io/parts/ti/LM3478MA)

Questions

Is there a KiCad symbol and footprint for the LM3478MA?

Yes. The symbol is Regulator_Controller:LM3478MA and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM3478MA?

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

Where is the LM3478MA datasheet?

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

Where can I order the LM3478MA?

JLCPCB lists it as part C1530061, with 118 in stock; the sellers' links on this page open their listings.

What can replace the LM3478MA?

Parts like it in the library: the XL1509-5.0E1 by XLSEMI, the XL1509-ADJE1 by XLSEMI, the XL1410E1 by XLSEMI and the MC34063AD by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the LM3478MA?

22 boards in 15 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8