Overview
The LM5642MH is a DC DC Controller made by Texas Instruments in a HTSSOP-28-EP package with 29 pins. -40℃~+125℃@(TJ) 2 200kHz 4.5V~36V Buck Buck External Yes HTSSOP-28-EP DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM5642XMHX_NOPB, from EasyEDA) and its footprint (EasyEDA_Cloud:HTSSOP-28_L9.7-W4.4-P0.65-LS6.4-BL-EP, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C1519422).
Symbol
Footprint
Parameters
12- Features
- Overcurrent Protection, Output discharge, Protection latch, Adjustable soft-start, Cycle-by-cycle current limiting, Adjustable current limiting, Frequency synchronization, Built-in LDO regulator
- Frequency - Switching
- 200kHz
- Function
- Step-down type
- Number of Outputs
- 2
- Operating Temperature
- -40℃~+125℃@(TJ)
- Output Type
- Adjustable
- Quiescent Current
- 50uA
- Switch tube (built-in/external)
- External
- Synchronous Rectification
- Yes
- Synchronous Rectifier
- Yes
- Topology
- Buck
- Voltage - Supply
- 4.5V~36V
Order codes
1- LM5642MH/NOPBLCSC C1519422
Pinout
29| Pin | Name | Type |
|---|---|---|
| 1 | KS1 | Unspecified |
| 2 | ILIM1 | Unspecified |
| 3 | COMP1 | Unspecified |
| 4 | FB1 | Unspecified |
| 5 | SYNC | Unspecified |
| 6 | UV_DELAY | Unspecified |
| 7 | VLIN5 | Unspecified |
| 8 | SGND | Unspecified |
| 9 | ON/SS1 | Unspecified |
| 10 | ON/SS2 | Unspecified |
| 11 | FB2 | Unspecified |
| 12 | COMP2 | Unspecified |
| 13 | ILIM2 | Unspecified |
| 14 | KS2 | Unspecified |
| 15 | RSNS2 | Unspecified |
| 16 | SW2 | Unspecified |
| 17 | HDRV2 | Unspecified |
| 18 | CBOOT2 | Unspecified |
| 19 | VDD2 | Unspecified |
| 20 | LDRV2 | Unspecified |
| 21 | PGND | Unspecified |
| 22 | VIN | Unspecified |
| 23 | LDRV1 | Unspecified |
| 24 | VDD1 | Unspecified |
| 25 | CBOOT1 | Unspecified |
| 26 | HDRV1 | Unspecified |
| 27 | SW1 | Unspecified |
| 28 | RSNS1 | Unspecified |
| 29 | PGND | Unspecified |
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Is there a KiCad symbol and footprint for the LM5642MH?
Yes. The symbol is EasyEDA_Cloud:LM5642XMHX_NOPB and the footprint EasyEDA_Cloud:HTSSOP-28_L9.7-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 LM5642MH?
HTSSOP-28-EP, with 29 pins. Its footprint is drawn on this page.
Where is the LM5642MH datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the LM5642MH?
JLCPCB lists it as part C1519422, with 0 in stock; the sellers' links on this page open their listings.