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HomeProductsIntegrated Circuits (ICs)PMIC - LED DriversSC621ULTRT
SC621ULTRT Image
Image may be representation.
See specifications for product details.

SC621ULTRT - Semtech Corporation

Manufacturer Part Number
SC621ULTRT
Manufacturer
Semtech
Allelco Part Number
32D-SC621ULTRT
ECAD Model
Parts Description
IC LED DRVR RGLTR / 20MLPQ
Detailed Description
Package
20-VFQFN Exposed Pad
Data sheet
SC621ULTRT.pdf
RoHs Status
RoHS Compliant
In stock: 7000

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Quantity

Specifications

SC621ULTRT Tech Specifications
Semtech Corporation - SC621ULTRT technical specifications, attributes, parameters and parts with similar specifications to Semtech Corporation - SC621ULTRT

Product Attribute Attribute Value  
Manufacturer Semtech  
Voltage - Supply (Min) 3V  
Voltage - Supply (Max) 5.5V  
Voltage - Output 2.5V ~ 5.25V  
Type DC DC Regulator  
Topology Switched Capacitor (Charge Pump)  
Supplier Device Package 20-MLPQ-UT (3x3)  
Series mAhXLife™  
Package / Case 20-VFQFN Exposed Pad  
Package Tape & Reel (TR)  
Product Attribute Attribute Value  
Operating Temperature -40°C ~ 85°C (TA)  
Number of Outputs 5  
Mounting Type Surface Mount  
Internal Switch(s) Yes  
Frequency -  
Dimming -  
Current - Output / Channel 25mA, 400mA (Flash)  
Base Product Number SC621  
Applications Backlight, Camera Flash  

Parts Introduction

Manufacturer Part Number

SC621ULTRT

Manufacturer

Semtech

Introduction

The SC621ULTRT is a highly integrated, high-efficiency switched-capacitor DC-DC regulator designed to power multiple LED loads, including backlight and camera flash applications. It features low quiescent current, excellent regulation, and a small solution size, making it an ideal choice for space-constrained portable electronics.

Product Features and Performance

Switched-capacitor (charge pump) topology for high efficiency

Supports up to 5 independent LED loads

Output voltage adjustable from 2.5V to 5.25V

Output current up to 25mA per channel (400mA for flash)

Very low quiescent current of only 6μA

Input voltage range from 3V to 5.5V

Supports both linear and PWM dimming

Integrated high-side switches for LED control

Thermal shutdown and overcurrent protection

Product Advantages

Highly efficient power conversion for extended battery life

Small solution size for space-constrained designs

Flexible output voltage and current configuration

Advanced protection features for reliable operation

Key Reasons to Choose This Product

Optimized for portable electronics with limited space

Delivers high-performance LED driving with low power consumption

Robust protection features ensure safe and reliable operation

Proven Semtech quality and reliability

Quality and Safety Features

Thermal shutdown protection

Overcurrent protection

Meets relevant safety and environmental standards

Compatibility

Compatible with a wide range of portable electronic devices, including smartphones, tablets, and wearables

Application Areas

Backlight and camera flash for mobile devices

LED lighting in various portable electronics

Product Lifecycle

The SC621ULTRT is an obsolete product. Customers are advised to contact our website's sales team for information on alternative or equivalent models that may be available.

Parts with Similar Specifications

The three parts on the right have similar specifications to Semtech Corporation SC621ULTRT

Product Attribute SC621ULTRT SC624ULTRT SC622AULTRT SC618ULTRT
Part Number SC621ULTRT SC624ULTRT SC622AULTRT SC618ULTRT
Manufacturer Semtech Corporation Semtech Corporation Semtech Corporation Semtech Corporation
Type DC DC Regulator DC DC Regulator DC DC Regulator DC DC Regulator
Current - Output / Channel 25mA, 400mA (Flash) 25mA 400mA (Flash) 500mA (Flash)
Internal Switch(s) Yes Yes Yes Yes
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Voltage - Output 2.5V ~ 5.25V 2.5V ~ 5.25V 2.5V ~ 5.25V -
Voltage - Supply (Max) 5.5V 5.5V 5.5V 5.25V
Number of Outputs 5 4 1 1
Series mAhXLife™ mAhXLife™ mAhXLife™ -
Topology Switched Capacitor (Charge Pump) Switched Capacitor (Charge Pump) Switched Capacitor (Charge Pump) Switched Capacitor (Charge Pump)
Dimming - - I²C -
Frequency - - - 250kHz
Voltage - Supply (Min) 3V 3V 3V 3V
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Supplier Device Package 20-MLPQ-UT (3x3) 20-MLPQ-UT (3x3) 20-MLPQ-UT (3x3) 10-MLPD-UT (3x3)
Applications Backlight, Camera Flash Backlight Camera Flash Camera Flash
Base Product Number SC621 SC624 SC622 SC618
Package / Case 20-VFQFN Exposed Pad 20-VFQFN Exposed Pad 20-VFQFN Exposed Pad 10-UFDFN Exposed Pad

SC621ULTRT Datasheet PDF

Download SC621ULTRT pdf datasheets and Semtech Corporation documentation for SC621ULTRT - Semtech Corporation.

PCN Packaging
2.73KHz.pdf
PCN Obsolescence/ EOL
Cylindrical Battery Holders.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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SC621ULTRT Image

SC621ULTRT

Semtech Corporation
32D-SC621ULTRT

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