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MIC2178YWM on a board, in 3D

MIC2178YWM

Microchip Technology

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

Extended
DatasheetJLCPCBLCSCmicrochip/MIC2178YWM
Category
DC DC Converters
Package
SOIC-20-300mil
Pins
20

Overview

The MIC2178YWM 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 Adjustable Buck Buck Built-in SOIC-20-300mil DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (Regulator_Switching:MIC2178, 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 C220289).

Symbol

VIN1SW3PGND4PWM10PWRGD11FB12COMP13SGND14SYNC18BIAS19EN20
Regulator_Switching:MIC2178From 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
Adjustable
Output Voltage
1.25V~16.5V
Quiescent Current
600uA
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 MIC2178YWM
PinNameType
1VINPower in
2VINPassive
3SWOutput
4PGNDPower in
5PGNDPassive
6PGNDPassive
7PGNDPassive
8SWPassive
9VINPassive
10PWMInput
11PWRGDOutput
12FBInput
13COMPInput
14SGNDPower in
15SGNDPassive
16SGNDPassive
17SGNDPassive
18SYNCInput
19BIASInput
20ENInput

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[![MIC2178YWM](https://pcbkit.io/embed/parts/microchip/MIC2178YWM.jpg?size=s)](https://pcbkit.io/parts/microchip/MIC2178YWM)

Questions

Is there a KiCad symbol and footprint for the MIC2178YWM?

Yes. The symbol is Regulator_Switching:MIC2178 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 MIC2178YWM?

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

Where is the MIC2178YWM datasheet?

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

Where can I order the MIC2178YWM?

JLCPCB lists it as part C220289, with 0 in stock; the sellers' links on this page open their listings.

What can replace the MIC2178YWM?

Parts like it in the library: the L4973D5.1 by STMicroelectronics, the LT1339CSW#PBF by Analog Devices, the L4973D3.3 by STMicroelectronics and the LT1371CSW#TRPBF by Analog Devices. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8