SC621AULTRT

SEMTECH

-40℃~+85℃ 1.5% 2.5V~5.25V 250kHz 25mA、25mA、25mA、25mA、400mA 3V~5.5V 5 Charge Pump DC-DC I2C QFN-20-EP(3x3) LED Drivers

Extended

semtech/SC621AULTRT

Category: LED Drivers
Package: QFN-20-EP(3x3)
Pins: 21

Overview

The SC621AULTRT is a LED Driver made by SEMTECH in a QFN-20-EP(3x3) package with 21 pins. -40℃~+85℃ 1.5% 2.5V~5.25V 250kHz 25mA、25mA、25mA、25mA、400mA 3V~5.5V 5 Charge Pump DC-DC I2C QFN-20-EP(3x3) LED Drivers.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SC627ULTRT, 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 C2679275).

Symbol

EasyEDA_Cloud:SC627ULTRTFrom EasyEDA

Footprint

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

Parameters

Constant Current Accuracy: 1.5%
Dimming: I2C
Features: Over Voltage Protection；LED open-circuit protection；Over-Temperature Protection (OTP)；Short Circuit Protection
Frequency - Switching: 250kHz
Number of Channels: 5
Operating temperature: -40℃~+85℃
Output Current: 25mA；25mA；25mA；25mA；400mA
Output Voltage: 2.5V~5.25V
Topology: Charge Pump
Type: DC-DC
Voltage - Input(DC): 3V~5.5V

Order codes

SC621AULTRTLCSC C2679275

Pinout

The pins of the SC621AULTRT
Pin	Name	Type
1	C2-	Unspecified
2	PGND	Unspecified
3	FL	Unspecified
4	BL1	Unspecified
5	BL2	Unspecified
6	BL3	Unspecified
7	BL4	Unspecified
8	AGND	Unspecified
9	GREF	Unspecified
10	FLEN	Unspecified
11	SWIF	Unspecified
12	NC	Unspecified
13	BYP	Unspecified
14	LDO2	Unspecified
15	LDO1	Unspecified
16	VOUT	Unspecified
17	C2+	Unspecified
18	C1+	Unspecified
19	VIN	Unspecified
20	C1-	Unspecified
21	EP	Unspecified

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A picture

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A picture that opens the part, for a README

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Questions

Is there a KiCad symbol and footprint for the SC621AULTRT?

Yes. The symbol is EasyEDA_Cloud:SC627ULTRT 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 SC621AULTRT?

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

Where can I order the SC621AULTRT?

JLCPCB lists it as part C2679275, with 0 in stock; the sellers' links on this page open their listings.

What can replace the SC621AULTRT?

Parts like it in the library: the AW9106CQNR by AWINIC, the LTC3219EUD#TRPBF by Analog Devices and the IS31FL3196A-QFLS2-TR by ISSI. Check their datasheets: a part that fits the footprint may still differ in its ratings.