SC508ULTRT

SEMTECH

-40℃~+125℃@(TJ) 1 1MHz 4.5V~46V Buck Buck External Yes QFN-20-EP(3x3) DC-DC Converters ROHS

Extended

semtech/SC508ULTRT

Category: DC DC Controllers
Package: QFN-20-EP(3x3)
Pins: 21

Overview

The SC508ULTRT is a DC DC Controller made by SEMTECH in a QFN-20-EP(3x3) package with 21 pins. -40℃~+125℃@(TJ) 1 1MHz 4.5V~46V Buck Buck External Yes QFN-20-EP(3x3) DC-DC Converters ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SC508ULTRT, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-20_L3.0-W3.0-P0.40-TL-EP1.7, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2658826).

Symbol

EasyEDA_Cloud:SC508ULTRTFrom EasyEDA

Footprint

EasyEDA_Cloud:QFN-20_L3.0-W3.0-P0.40-TL-EP1.7From EasyEDA

Parameters

Frequency - Switching: 1MHz
Function: Step-down type
Number of Outputs: 1
Operating Temperature: -40℃~+125℃@(TJ)
Switch tube (built-in/external): External
Synchronous Rectification: Yes
Topology: Step-down
Voltage - Supply: 4.5V~46V

Order codes

SC508ULTRTLCSC C2658826

Pinout

The pins of the SC508ULTRT
Pin	Name	Type
1	FB	Unspecified
2	VOUT	Unspecified
3	VDDA	Unspecified
4	VLDO	Unspecified
5	VIN	Unspecified
6	SS	Unspecified
7	NC	Unspecified
8	BST	Unspecified
9	DH	Unspecified
10	LX	Unspecified
11	PGND	Unspecified
12	DL	Unspecified
13	VDDP	Unspecified
14	PSV	Unspecified
15	PGOOD	Unspecified
16	ILIM	Unspecified
17	EN	Unspecified
18	AGND	Unspecified
19	TON	Unspecified
20	ENL	Unspecified
21	AGND	Unspecified

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A live frame, for any web page

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A picture

<img src="https://pcbkit.io/embed/parts/semtech/SC508ULTRT.jpg" alt="SC508ULTRT" width="1200" height="900">

A picture that opens the part, for a README

[![SC508ULTRT](https://pcbkit.io/embed/parts/semtech/SC508ULTRT.jpg?size=s)](https://pcbkit.io/parts/semtech/SC508ULTRT)

Questions

Is there a KiCad symbol and footprint for the SC508ULTRT?

Yes. The symbol is EasyEDA_Cloud:SC508ULTRT and the footprint EasyEDA_Cloud:QFN-20_L3.0-W3.0-P0.40-TL-EP1.7, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the SC508ULTRT?

QFN-20-EP(3x3), with 21 pins. Its footprint is drawn on this page.

Where can I order the SC508ULTRT?

JLCPCB lists it as part C2658826, with 0 in stock; the sellers' links on this page open their listings.

What can replace the SC508ULTRT?

Parts like it in the library: the NCP81278TMNTX by onsemi and the NCP81278DMNTX by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.