LT3478IFE-1#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

Name: LT3478IFE-1#PBF
Brand: Analog Devices
SKU: LT3478IFE-1#PBF
Availability: InStock

LT3478IFE-1#PBF is a high-current boost LED driver capable of 4.5A output at up to 42V, switching at 2.25 MHz with True Color PWM dimming. It delivers precise LED current control in a 16-pin SSOP package. Available from stock worldwide with competitive pricing.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

LT3478IFE-1#PBFSmall Outline Packages

Quick Facts

Manufacturer: Analog Devices
Package: Small Outline Packages
Pin Count: 16
Lifecycle: ACTIVE
Datasheet: LT3478IFE-1#PBF Datasheet PDF
Category: Integrated Circuit
Price: From $5.9300(MOQ 1)
Temp Range: -40.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LT3478IFE-1#PBF?

4.5A maximum LED current drive capability
42V maximum input/output voltage range
2.25 MHz switching frequency reduces external filter size
True Color PWM dimming for accurate color reproduction
16-pin SSOP package with thermal pad for heat dissipation
Internal soft-start to limit inrush current at startup

What is LT3478IFE-1#PBF used for?

The LT3478IFE-1#PBF is designed for high-brightness LED backlighting in LCD displays, automotive interior lighting, and studio or architectural color-mixing luminaires requiring True Color PWM dimming. Its 4.5A drive capability and 42V compliance make it suitable for multi-LED string drivers in signage and industrial lighting panels. The 2.25 MHz switching frequency keeps magnetics small, enabling compact form-factor designs.

What are the specifications of LT3478IFE-1#PBF?

Pbfree Code	No
Manufacturer Package Code	05-08-1663 (BC)
YTEOL	10
Interface IC Type	LED DISPLAY DRIVER
JESD-30 Code	R-PDSO-G16
JESD-609 Code	e3
Multiplexed Display Capability	NO
Number of Functions	1
Number of Segments	6
Package Body Material	PLASTIC/EPOXY
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Supply Voltage-Max	36V
Supply Voltage-Min	2.8V
Supply Voltage-Nom	2.7V
Surface Mount	YES
Technology	BIPOLAR
Temperature Grade	AUTOMOTIVE
Terminal Finish	Matte Tin (Sn)
Terminal Form	GULL WING
Terminal Pitch	0.65mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
Package	Small Outline Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.39.00.01
Country of Origin	Thailand

Where can I find the LT3478IFE-1#PBF datasheet?

LT3478IFE-1#PBF Datasheet Download

Official datasheet from Analog Devices

What are equivalent replacements for LT3478IFE-1#PBF?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

How does the 2.25 MHz switching frequency of LT3478IFE-1#PBF benefit PCB layout compared to lower-frequency LED drivers?

Operating at 2.25 MHz allows LT3478IFE-1#PBF to use inductors as small as 2.2 µH and capacitors under 10 µF, significantly reducing board area compared to 200–500 kHz drivers that require 10–22 µH inductors. This makes the part ideal for space-constrained LED driver modules.

What PWM dimming range does LT3478IFE-1#PBF support, and why does True Color PWM dimming matter for display applications?

LT3478IFE-1#PBF supports True Color PWM dimming with a wide dimming ratio exceeding 1000:1, maintaining constant LED peak current of up to 4.5A at each pulse. This preserves LED color point across the full brightness range, which is critical for LCD backlights and studio lighting where color accuracy at all dimming levels is required.

When should a designer choose LT3478IFE-1#PBF over a lower-voltage LED driver for an automotive interior lighting application?

Automotive 12V systems can swing from 6V to 42V during load dumps and cold-crank events. LT3478IFE-1#PBF's 42V maximum rating and 4.5A output handle these transients without external clamping circuitry, making it a direct fit for interior accent lighting strings that must survive the full automotive voltage envelope.

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About Analog Devices

Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.

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AvailabilityIn Stock

Reference Price (USD)

From $5.9300

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$12.9200	$12.92
10+	$8.9140	$89.14
19+	$7.8600	$149.34
1000+	$5.9300	$5930.00

pcs

Unit price: $12.9200 · Total: $12.92

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”

Rajesh Patel

Procurement Manager, VoltEdge Energy, India

LT3478IFE-1#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

What are the key features of LT3478IFE-1#PBF?

What is LT3478IFE-1#PBF used for?

What are the specifications of LT3478IFE-1#PBF?

Compliance & Regulatory

Where can I find the LT3478IFE-1#PBF datasheet?

What are equivalent replacements for LT3478IFE-1#PBF?

Frequently Asked Questions

How does the 2.25 MHz switching frequency of LT3478IFE-1#PBF benefit PCB layout compared to lower-frequency LED drivers?

What PWM dimming range does LT3478IFE-1#PBF support, and why does True Color PWM dimming matter for display applications?

When should a designer choose LT3478IFE-1#PBF over a lower-voltage LED driver for an automotive interior lighting application?

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