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LM5576MH on a board, in 3D

LM5576MH

Texas Instruments

-40℃~+125℃@(TJ) 1 3A 500kHz 57uA 6V~75V Adjustable Buck Built-in No Overcurrent Protection、Adjustable soft-start、Cycle-by-cycle current limiting、Frequency synchronization、External compensation、Built-in LDO regulator Step-down type HTSSOP-20-EP DC-DC Converters ROHS

Extended
DatasheetJLCPCBLCSCti/LM5576MH
Category
DC DC Converters
Package
HTSSOP-20-EP
Pins
21

Overview

The LM5576MH is a DC DC Converter made by Texas Instruments in a HTSSOP-20-EP package with 21 pins. -40℃~+125℃@(TJ) 1 3A 500kHz 57uA 6V~75V Adjustable Buck Built-in No Overcurrent Protection、Adjustable soft-start、Cycle-by-cycle current limiting、Frequency synchronization、External compensation、Built-in LDO regulator Step-down type HTSSOP-20-EP DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM25576MHX_C406741, 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. 131 are in stock at JLCPCB (part C182428). 2 open-source boards in 1 repository on GitHub use it.

Symbol

VCC1SD2VIN3VIN4SYNC5COMP6FB7RT8RAMP9AGND10SS11OUT12PGND13PGND14IS15IS16SW17SW18PRE19BST20EP21
EasyEDA_Cloud:LM25576MHX_C406741From EasyEDA

Footprint

12345678910111213141516171819202121212121
EasyEDA_Cloud:HTSSOP-20_L6.5-W4.4-P0.65-LS6.4-BL-EPFrom EasyEDA

Parameters

12
Features
External compensation
Frequency - Switching
500kHz
Function
Step-down type
Number of Outputs
1
Operating Temperature
-40℃~+125℃@(TJ)
Output Current
3A
Output Type
Adjustable
Quiescent Current
57uA
Switch tube (built-in/external)
Built-in
Synchronous Rectifier
No
Topology
Buck
Voltage - Supply
6V~75V

Order codes

1

Pinout

21
The pins of the LM5576MH
PinNameType
1VCCUnspecified
2SDUnspecified
3VINUnspecified
4VINUnspecified
5SYNCUnspecified
6COMPUnspecified
7FBUnspecified
8RTUnspecified
9RAMPUnspecified
10AGNDUnspecified
11SSUnspecified
12OUTUnspecified
13PGNDUnspecified
14PGNDUnspecified
15ISUnspecified
16ISUnspecified
17SWUnspecified
18SWUnspecified
19PREUnspecified
20BSTUnspecified
21EPUnspecified

Open-source boards using it

All 2
  • 4 layers42 × 42 mmBefore bec feed widths, the printed circuit board in 3D

    Before bec feed widths

    scarletnova20/Power_Distribution_Board

    PCB specifically designed for high power distribution among the different components of the drone.

    78 partsApache-2.0
  • 2 layersSwayatt PCB, the printed circuit board in 3D

    Swayatt PCB

    scarletnova20/Power_Distribution_Board

    PCB specifically designed for high power distribution among the different components of the drone.

    46 partsApache-2.0

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Questions

Is there a KiCad symbol and footprint for the LM5576MH?

Yes. The symbol is EasyEDA_Cloud:LM25576MHX_C406741 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 LM5576MH?

HTSSOP-20-EP, with 21 pins. Its footprint is drawn on this page.

Where is the LM5576MH datasheet?

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

Where can I order the LM5576MH?

JLCPCB lists it as part C182428, with 131 in stock; the sellers' links on this page open their listings.

What can replace the LM5576MH?

Parts like it in the library: the LM5576MHX by Texas Instruments, the LM25576MH by Texas Instruments, the TPS54362BQPWPRQ1 by Texas Instruments and the LM21215MHX by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the LM5576MH?

2 boards in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8