
Overview
The TL494CDX is a DC DC Converter made by onsemi in a SOIC-16 package with 16 pins. 0℃~+70℃ 1 1kHz~300kHz 200mA 6mA 7V~40V Built-in LDO regulator External No Push-Pull Step-down type SOIC-16 DC-DC Converters.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:AZ494AP-E1, from EasyEDA) and its footprint (Package_SO:SO-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3192521).
Symbol
Footprint
Parameters
11- Features
- Built-in LDO regulator
- Frequency - Switching
- 1kHz~300kHz
- Function
- Step-down type
- Number of Outputs
- 1
- Operating Temperature
- 0℃~+70℃
- Output Current
- 200mA
- Quiescent Current
- 6mA
- Switch tube (built-in/external)
- External
- Synchronous Rectifier
- No
- Topology
- Push-Pull
- Voltage - Supply
- 7V~40V
Order codes
1- TL494CDXLCSC C3192521
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | 1IN+ | Unspecified |
| 2 | 1IN− | Unspecified |
| 3 | FEEDBACK | Unspecified |
| 4 | DTC | Unspecified |
| 5 | CT | Unspecified |
| 6 | RT | Unspecified |
| 7 | GND | Unspecified |
| 8 | C1 | Unspecified |
| 9 | E1 | Unspecified |
| 10 | E2 | Unspecified |
| 11 | C2 | Unspecified |
| 12 | VCC | Unspecified |
| 13 | OUTPUTCTRL | Unspecified |
| 14 | REF | Unspecified |
| 15 | 2IN− | Unspecified |
| 16 | 2IN+ | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/onsemi/TL494CDX" title="TL494CDX in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/onsemi/TL494CDX.jpg" alt="TL494CDX" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/TL494CDX)Questions
Is there a KiCad symbol and footprint for the TL494CDX?
Yes. The symbol is EasyEDA_Cloud:AZ494AP-E1 and the footprint Package_SO:SO-16_3.9x9.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the TL494CDX?
SOIC-16, with 16 pins. Its footprint is drawn on this page.
Where is the TL494CDX datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the TL494CDX?
JLCPCB lists it as part C3192521, with 0 in stock; the sellers' links on this page open their listings.
What can replace the TL494CDX?
Parts like it in the library: the KA7500BDTR(XBLW) by XBLW, the LT1534IS#PBF by Analog Devices, the MAX710ESE+T by Maxim Integrated (Analog Devices) and the LT1777CS#TRPBF by Analog Devices. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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