Overview
The HT7718S is a DC DC Converter made by Holtek Semicon in a SOT-89-3 package with 5 pins. -40℃~+85℃ 1 1.8V 100mA 500kHz 6V Boost Boost Built-in Yes SOT-89-3 DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:HT7733_C259880, from EasyEDA) and its footprint (EasyEDA_Cloud:SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C259564).
Symbol
Footprint
Parameters
12- Frequency - Switching
- 500kHz
- Function
- Boost
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+85℃
- Output Current
- 100mA
- Output Voltage
- 1.8V
- Switch tube (built-in/external)
- Built-in
- Switching Frequency
- 500kHz
- Synchronous Rectification
- Yes
- Synchronous Rectifier
- Yes
- Topology
- Boost
- Voltage - Supply
- 6V
Order codes
3- HT7718SLCSC C259564
- HT7718SLCSC C259904
- HT7718SLCSC C259945
Pinout
5| Pin | Name | Type |
|---|---|---|
| 1 | CE | Unspecified |
| 2 | VOUT | Unspecified |
| 3 | NC | Unspecified |
| 4 | GND | Unspecified |
| 5 | LX | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/holtek-semicon/HT7718S" title="HT7718S in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/holtek-semicon/HT7718S.jpg" alt="HT7718S" width="1200" height="900">[](https://pcbkit.io/parts/holtek-semicon/HT7718S)Questions
Is there a KiCad symbol and footprint for the HT7718S?
Yes. The symbol is EasyEDA_Cloud:HT7733_C259880 and the footprint EasyEDA_Cloud:SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the HT7718S?
SOT-89-3, with 5 pins. Its footprint is drawn on this page.
Where is the HT7718S datasheet?
Holtek Semicon publishes it: the Datasheet link on this page opens it.
Where can I order the HT7718S?
JLCPCB lists it as part C259564, with 0 in stock; the sellers' links on this page open their listings.
What can replace the HT7718S?
Parts like it in the library: the TPS62619YFD by Texas Instruments, the TPS62401DRC by Texas Instruments, the LM3691TL-1.8 by Texas Instruments and the TPS62081DSGT by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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