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LM65645RZTR, in 3D

LM65645RZTR

Texas Instruments

-40℃~+150℃@(TJ) 1 2.5uA 3.3V、5V 300kHz~2.2MHz 3V~65V 4.5A Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Operating status indication、Cycle-by-cycle current limiting、Frequency synchronization、Hiccup current limiting、Built-in LDO regulator、EMI optimization (spread spectrum) Step-down type Yes WQFN-FCRLF-20(2.5x3.5) DC-DC Converters ROHS

Extended
DatasheetJLCPCBLCSCti/LM65645RZTR
Category
DC DC Converters
Package
WQFN-FCRLF-20(2.5x3.5)
Pins
21

Overview

The LM65645RZTR is a DC DC Converter made by Texas Instruments in a WQFN-FCRLF-20(2.5x3.5) package with 21 pins. -40℃~+150℃@(TJ) 1 2.5uA 3.3V、5V 300kHz~2.2MHz 3V~65V 4.5A Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Operating status indication、Cycle-by-cycle current limiting、Frequency synchronization、Hiccup current limiting、Built-in LDO regulator、EMI optimization (spread spectrum) Step-down type Yes WQFN-FCRLF-20(2.5x3.5) DC-DC Converters ROHS.

PCBKit's library has its footprint (EasyEDA_Cloud:WQFN-FCRLF-20_L3.6-W2.6-P0.50-TL, from EasyEDA), ready for a KiCad board. 1,218 are in stock at JLCPCB (part C49256229). 4 open-source boards in 2 repositories on GitHub use it.

Symbol

The library has no symbol for this part yet.

Footprint

21
EasyEDA_Cloud:WQFN-FCRLF-20_L3.6-W2.6-P0.50-TLFrom EasyEDA

Parameters

13
Features
Light load efficient mode
Frequency - Switching
300kHz~2.2MHz
Function
Step-down type
Number of Outputs
1
Operating Temperature
-40℃~+150℃@(TJ)
Output Current
4.5A
Output Type
Adjustable
Output Voltage
3.3V
Quiescent Current
2.5uA
Switch tube (built-in/external)
Built-in
Synchronous Rectifier
Yes
Topology
Buck
Voltage - Supply
3V~65V

Order codes

1

Open-source boards using it

All 4
  • 8 layers100 × 102 mmZynqinator, the printed circuit board in 3D

    Zynqinator

    rkarl2/Zynqinator

    Test board for the Zyqn 7020

    645 parts1AGPL-3.0
  • 4 layers48 × 80 mmBoard latest, the printed circuit board in 3D

    Board latest

    dennisss/dacha

    Monorepo for awesome tools/projects/libraries

    45 parts397Apache-2.0
  • 4 layers48 × 80 mmBoard latest, the printed circuit board in 3D

    Board latest

    dennisss/dacha

    Monorepo for awesome tools/projects/libraries

    62 parts397Apache-2.0
  • 4 layers48 × 80 mmBoard latest, the printed circuit board in 3D

    Board latest

    dennisss/dacha

    Monorepo for awesome tools/projects/libraries

    66 parts397Apache-2.0

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Questions

Is there a KiCad symbol and footprint for the LM65645RZTR?

Yes. the footprint EasyEDA_Cloud:WQFN-FCRLF-20_L3.6-W2.6-P0.50-TL, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM65645RZTR?

WQFN-FCRLF-20(2.5x3.5), with 21 pins. Its footprint is drawn on this page.

Where is the LM65645RZTR datasheet?

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

Where can I order the LM65645RZTR?

JLCPCB lists it as part C49256229, with 1,218 in stock; the sellers' links on this page open their listings.

What can replace the LM65645RZTR?

Parts like it in the library: the MPQ4436AGRE-33-AEC1-P by Monolithic Power Systems, the LP62610-33B6F by LOWPOWER, the MS2304L33T by MSKSEMI and the OC6813T33 by OCX. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the LM65645RZTR?

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

Parts like it

8