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MIC2178-3.3YWM on a board, in 3D

MIC2178-3.3YWM

Microchip Technology

-40℃~+85℃ 1 2.5A 200kHz 4.5V~16.5V Buck Buck Built-in Yes SOIC-20-300mil DC-DC Converters ROHS

Extended
DatasheetJLCPCBLCSCmicrochip/MIC2178-3.3YWM
Category
DC DC Converters
Package
SOIC-20-300mil
Pins
20

Overview

The MIC2178-3.3YWM is a DC DC Converter made by Microchip Technology in a SOIC-20-300mil package with 20 pins. -40℃~+85℃ 1 2.5A 200kHz 4.5V~16.5V Buck Buck Built-in Yes SOIC-20-300mil DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (Regulator_Switching:MIC2178-3.3, from KiCad's library) and its footprint (Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C643238). 2 open-source boards in 1 repository on GitHub use it.

Symbol

VIN1SW3PGND4PWM10PWRGD11FB12COMP13SGND14SYNC18BIAS19EN20
Regulator_Switching:MIC2178-3.3From KiCad's library

Footprint

1234567891011121314151617181920
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mmFrom KiCad's library

Parameters

13
Features
Overcurrent Protection, Light load efficient mode, Operating status indication, Cycle-by-cycle current limiting, Frequency synchronization, Built-in LDO regulator
Frequency - Switching
200kHz
Function
Step-down type
Number of Outputs
1
Operating Temperature
-40℃~+85℃
Output Current
2.5A
Output Type
Fixed
Output Voltage
3.3V
Quiescent Current
1mA
Switch tube (built-in/external)
Built-in
Synchronous Rectifier
Yes
Topology
Buck
Voltage - Supply
4.5V~16.5V

Order codes

1

Pinout

20
The pins of the MIC2178-3.3YWM
PinNameType
1VINPower in
2VINPassive
3SWOutput
4PGNDPower in
5PGNDPassive
6PGNDPassive
7PGNDPassive
8SWPassive
9VINPassive
10PWMInput
11PWRGDOutput
12FBInput
13COMPInput
14SGNDPower in
15SGNDPassive
16SGNDPassive
17SGNDPassive
18SYNCInput
19BIASInput
20ENInput

Open-source boards using it

All 2
  • 4 layers123.4 × 83.7 mmPneumatics Control Unit Pinned, the printed circuit board in 3D

    Pneumatics Control Unit Pinned

    msoe-vex/pcb-design

    This repository is dedicated to storing files required for designing and creating PCB Boards

    100 parts2
  • 4 layers53.6 × 65.4 mmPneumatics Control Unit V1, the printed circuit board in 3D

    Pneumatics Control Unit V1

    msoe-vex/pcb-design

    This repository is dedicated to storing files required for designing and creating PCB Boards

    80 parts2

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Questions

Is there a KiCad symbol and footprint for the MIC2178-3.3YWM?

Yes. The symbol is Regulator_Switching:MIC2178-3.3 and the footprint Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the MIC2178-3.3YWM?

SOIC-20-300mil, with 20 pins. Its footprint is drawn on this page.

Where is the MIC2178-3.3YWM datasheet?

Microchip Technology publishes it: the Datasheet link on this page opens it.

Where can I order the MIC2178-3.3YWM?

JLCPCB lists it as part C643238, with 0 in stock; the sellers' links on this page open their listings.

What can replace the MIC2178-3.3YWM?

Parts like it in the library: the L4973D3.3 by STMicroelectronics, the MIC2177-3.3YWM-TR by Microchip Technology, the MIC2178-3.3YWM-TR by Microchip Technology and the LM2596S-3.3(UMW) by UMW. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the MIC2178-3.3YWM?

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

Parts like it

8