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HomeProductsIntegrated Circuits (ICs)PMIC - LED DriversLT3478EFE#TRPBF
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LT3478EFE#TRPBF - Analog Devices Inc.

Manufacturer Part Number
LT3478EFE#TRPBF
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-LT3478EFE#TRPBF
ECAD Model
Parts Description
IC LED DRV RGLTR PWM 16TSSOP
Package
16-TSSOP (0.173", 4.40mm Width) Exposed Pad
Data sheet
LT3478/-1.pdf
RoHs Status
ROHS3 Compliant
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Specifications

LT3478EFE#TRPBF Tech Specifications
Analog Devices Inc. - LT3478EFE#TRPBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LT3478EFE#TRPBF

Product Attribute Attribute Value  
Manufacturer Analog Devices, Inc.  
Voltage - Supply (Min) 2.8V  
Voltage - Supply (Max) 36V  
Voltage - Output 42V  
Type DC DC Regulator  
Topology Step-Down (Buck), Step-Up (Boost)  
Supplier Device Package 16-TSSOP-EP  
Series -  
Package / Case 16-TSSOP (0.173", 4.40mm Width) Exposed Pad  
Package Tape & Reel (TR)  
Product Attribute Attribute Value  
Operating Temperature -40°C ~ 125°C (TJ)  
Number of Outputs 1  
Mounting Type Surface Mount  
Internal Switch(s) Yes  
Frequency 200kHz ~ 2.25MHz  
Dimming PWM  
Current - Output / Channel 4.5A (Switch)  
Base Product Number LT3478  
Applications Backlight  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

LT3478EFE#TRPBF

Manufacturer

Analog Devices

Introduction

High power LED driver with wide input voltage range designed for driving LEDs in various lighting applications.

Product Features and Performance

Integrated high side switch

Wide input voltage range from 2.8V to 36V

Adjustable output voltage up to 42V

Current output up to 4.5A (Switch)

Frequency adjustment from 200kHz to 2.25MHz

Supports PWM dimming

Provides step-down (buck) and step-up (boost) regulation

Designed for high temperature operation with a range from -40°C to 125°C

Surface mount TSSOP-16 package with an exposed pad for enhanced thermal performance

Product Advantages

Flexibility with adjustable voltage and dimming options

High efficiency due to internal switching

Stable operation across a wide range of temperatures

Suitable for complex lighting systems with the need for buck and boost topologies

Key Technical Parameters

Voltage Supply (Min): 2.8V

Voltage Supply (Max): 36V

Voltage Output: 42V

Current Output / Channel: 4.5A (Switch)

Frequency: 200kHz – 2.25MHz

Dimming: PWM

Quality and Safety Features

Over temperature protection

Robust design suitable for industrial applications

Compatibility

Suitable for use in LED driving applications with varying power supply ranges

Application Areas

LED backlighting for monitors, TVs

General LED lighting systems

Automotive lighting

Industrial and commercial lighting solutions

Product Lifecycle

Product status is Active

Not currently reported nearing discontinuation

Alternatives or upgrades should be sourced from manufacturer's latest offerings

Several Key Reasons to Choose This Product

High integration reduces external component count

Versatile for both buck and boost applications in one device

High light output control through PWM dimming compatibility

Suitable for a wide range of products due to extensive input and output voltage capabilities

Robust package designed for thermal management and long-term reliability

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LT3478EFE#TRPBF

Product Attribute LT3478EFE#TRPBF LT3477IUF#PBF LT3477IUF#TRPBF LT3477EUF#TRPBF
Part Number LT3478EFE#TRPBF LT3477IUF#PBF LT3477IUF#TRPBF LT3477EUF#TRPBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Package / Case 16-TSSOP (0.173", 4.40mm Width) Exposed Pad 20-WFQFN Exposed Pad 20-WFQFN Exposed Pad 20-WFQFN Exposed Pad
Base Product Number LT3478 LT3477 LT3477 LT3477
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Voltage - Output 42V - - -
Dimming PWM PWM PWM PWM
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 85°C (TA)
Package Tape & Reel (TR) Tube Tape & Reel (TR) Tape & Reel (TR)
Topology Step-Down (Buck), Step-Up (Boost) Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost)
Applications Backlight - - -
Type DC DC Regulator DC DC Regulator DC DC Regulator DC DC Regulator
Supplier Device Package 16-TSSOP-EP 20-QFN (4x4) 20-QFN (4x4) 20-QFN (4x4)
Voltage - Supply (Min) 2.8V 2.5V 2.5V 2.5V
Series - - - -
Number of Outputs 1 1 1 1
Voltage - Supply (Max) 36V 25V 25V 25V
Internal Switch(s) Yes Yes Yes Yes
Frequency 200kHz ~ 2.25MHz 200kHz ~ 3.5MHz 200kHz ~ 3.5MHz 200kHz ~ 3.5MHz
Current - Output / Channel 4.5A (Switch) 3A (Switch) 3A (Switch) 3A (Switch)

LT3478EFE#TRPBF Datasheet PDF

Download LT3478EFE#TRPBF pdf datasheets and Analog Devices Inc. documentation for LT3478EFE#TRPBF - Analog Devices Inc..

Datasheets
LT3478/-1.pdf
Other Related Documents
Tape and Reel Packaging.pdf
Environmental Information
Material Declaration LT3478EFE#TRPBF.pdf

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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.

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Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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LT3478EFE#TRPBF Image

LT3478EFE#TRPBF

Analog Devices Inc.
32D-LT3478EFE#TRPBF

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