
Overview
The LM20323MH is a DC DC Converter made by Texas Instruments in a HTSSOP-20-EP package with 21 pins. -40℃~+125℃@(TJ) 1 3A 4.5V~36V 520kHz 800mV~25.2V Adjustable Buck Buck Built-in Yes HTSSOP-20-EP DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM20323MHE_NOPB, from EasyEDA) and its footprint (EasyEDA_Cloud:HTSSOP-20_L6.5-W4.4-P0.65-LS6.4-BL-EP, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C1355473).
Symbol
Footprint
Parameters
15- Features
- Overcurrent Protection, Adjustable soft-start, Operating status indication, Cycle-by-cycle current limiting, Output voltage tracking, External compensation
- Frequency - Switching
- 520kHz
- Function
- Step-down type
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+125℃@(TJ)
- Output Current
- 3A
- Output Type
- Adjustable
- Output Voltage
- 800mV~25.2V
- Quiescent Current
- 2.3mA
- Switch tube (built-in/external)
- Built-in
- Switching Frequency
- 520kHz
- Synchronous Rectification
- Yes
- Synchronous Rectifier
- Yes
- Topology
- Buck
- Voltage - Supply
- 4.5V~36V
Order codes
1- LM20323MH/NOPBLCSC C1355473
Pinout
21| Pin | Name | Type |
|---|---|---|
| 1 | SS/TRK | Unspecified |
| 2 | FB | Unspecified |
| 3 | PGOOD | Unspecified |
| 4 | COMP | Unspecified |
| 5 | VIN | Unspecified |
| 6 | VIN | Unspecified |
| 7 | SW | Unspecified |
| 8 | SW | Unspecified |
| 9 | GND | Unspecified |
| 10 | GND | Unspecified |
| 11 | GND | Unspecified |
| 12 | AGND | Unspecified |
| 13 | SW | Unspecified |
| 14 | SW | Unspecified |
| 15 | VIN | Unspecified |
| 16 | VIN | Unspecified |
| 17 | BOOT | Unspecified |
| 18 | VCC | Unspecified |
| 19 | EN | Unspecified |
| 20 | NC | Unspecified |
| 21 | EP | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/ti/LM20323MH" title="LM20323MH in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/LM20323MH.jpg" alt="LM20323MH" width="1200" height="900">[](https://pcbkit.io/parts/ti/LM20323MH)Questions
Is there a KiCad symbol and footprint for the LM20323MH?
Yes. The symbol is EasyEDA_Cloud:LM20323MHE_NOPB and the footprint EasyEDA_Cloud:HTSSOP-20_L6.5-W4.4-P0.65-LS6.4-BL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LM20323MH?
HTSSOP-20-EP, with 21 pins. Its footprint is drawn on this page.
Where is the LM20323MH datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the LM20323MH?
JLCPCB lists it as part C1355473, with 0 in stock; the sellers' links on this page open their listings.
What can replace the LM20323MH?
Parts like it in the library: the LM20343MH by Texas Instruments, the LM21215AMHE-1 by Texas Instruments, the TPS56920PWP by Texas Instruments and the LM21215MHE by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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