LT3517EUF#PBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock

Name: LT3517EUF#PBF
Brand: Analog Devices
SKU: LT3517EUF#PBF
Availability: InStock

Analog Devices LT3517EUF#PBF is a high-efficiency serial-interface LED display driver supporting 3-segment RGB and single-color LED strings with programmable current control and a compact 16-pin QFN package for portable and backlight applications.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

LT3517EUF#PBFQuad Flat No-Lead

Quick Facts

Manufacturer: Analog Devices
Package: Quad Flat No-Lead
Pin Count: 16
Lifecycle: ACTIVE
Datasheet: LT3517EUF#PBF Datasheet PDF
Category: Integrated Circuit
Price: From $3.7400(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 LT3517EUF#PBF?

Serial data interface for single-wire LED current programming, reducing GPIO pin count in microcontroller designs
Drives 3 independent LED segments with individually programmable current for flexible RGB or multi-channel backlight configurations
High-efficiency boost or SEPIC topology minimizes power dissipation in portable devices powered from 3.3V or 5V rails
Compact 16-pin 4mm x 4mm QFN package enabling low-profile LED driver placement near display connectors

What is LT3517EUF#PBF used for?

The LT3517EUF#PBF is designed for RGB LED backlights in handheld devices, industrial panel indicators, and wearable displays requiring precise per-channel current matching with minimal host-MCU pin usage. Its serial interface allows daisy-chaining multiple LED driver channels from a single SPI or proprietary serial bus, simplifying firmware and wiring in multi-zone backlight systems. The high-efficiency converter topology keeps the IC cool in battery-powered products where thermal headroom and battery runtime are both constrained.

What are the specifications of LT3517EUF#PBF?

Pbfree Code	No
Manufacturer Package Code	05-08-1692
YTEOL	10
Data Input Mode	SERIAL
Interface IC Type	LED DISPLAY DRIVER
JESD-30 Code	S-PQCC-N16
JESD-609 Code	e3
Multiplexed Display Capability	NO
Number of Functions	1
Number of Segments	3
Package Body Material	PLASTIC/EPOXY
Package Shape	SQUARE
Package Style	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Supply Voltage-Max	30V
Supply Voltage-Min	3V
Supply Voltage-Nom	5V
Surface Mount	YES
Technology	BIPOLAR
Temperature Grade	AUTOMOTIVE
Terminal Finish	Matte Tin (Sn)
Terminal Form	NO LEAD
Terminal Pitch	0.65mm
Terminal Position	QUAD
Time@Peak Reflow Temperature-Max (s)	30
fmax-Min	2.25MHz
## LT3517EUF#PBF Alternates Showing results	Image
Package	Quad Flat No-Lead

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	Malaysia

Where can I find the LT3517EUF#PBF datasheet?

LT3517EUF#PBF Datasheet Download

Official datasheet from Analog Devices

What are equivalent replacements for LT3517EUF#PBF?

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

Frequently Asked Questions

How does the LT3517EUF#PBF's serial interface reduce pin usage versus discrete PWM-based LED drivers?

The LT3517EUF#PBF uses a serial data interface requiring as few as 1 to 2 host MCU pins to program all 3 LED current channels, compared to 3 separate PWM outputs needed by discrete drivers. In a 3-color RGB backlight driving 20mA per channel, this saves 1 to 2 GPIO lines while still achieving independent brightness control with fine-grained resolution.

What LED forward current can the LT3517EUF#PBF regulate across its 3 output channels?

The LT3517EUF#PBF regulates LED current across all 3 segments with typical full-scale accuracy better than ±3% between channels, ensuring consistent color rendering in RGB backlight applications. Maximum current per channel is set by an external resistor, commonly configured for 20mA to 30mA per LED string in portable display and indicator designs operating from a 3V to 5V supply.

Can the LT3517EUF#PBF drive LED strings whose forward voltage exceeds the input supply voltage?

Yes, the LT3517EUF#PBF integrates a boost converter topology that steps up the input supply, enabling it to drive LED strings with a combined forward voltage higher than VIN. For example, three series white LEDs with a 10.5V forward stack can be driven from a 3.7V lithium battery input, covering the full 3.0V to 4.2V battery discharge range without dropping out.

How does the 16-pin QFN package of the LT3517EUF#PBF affect thermal performance in high-brightness backlight designs?

The 16-pin 4mm x 4mm QFN package includes an exposed thermal pad that must be soldered to a copper pour with at least 4 thermal vias for adequate heat dissipation. At 20mA per LED channel and a 5V input, the device dissipates approximately 50mW to 100mW; without the exposed-pad solder connection, junction temperature can rise 20°C above ambient even at this modest power level, reducing LED color stability.

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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 $3.7400

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$4.2716	$4.27
1000+	$3.7400	$3740.00

pcs

Unit price: $4.2716 · Total: $4.27

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

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Procurement Manager, VoltEdge Energy, India

LT3517EUF#PBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock

What are the key features of LT3517EUF#PBF?

What is LT3517EUF#PBF used for?

What are the specifications of LT3517EUF#PBF?

Compliance & Regulatory

Where can I find the LT3517EUF#PBF datasheet?

What are equivalent replacements for LT3517EUF#PBF?

Frequently Asked Questions

How does the LT3517EUF#PBF's serial interface reduce pin usage versus discrete PWM-based LED drivers?

What LED forward current can the LT3517EUF#PBF regulate across its 3 output channels?

Can the LT3517EUF#PBF drive LED strings whose forward voltage exceeds the input supply voltage?

How does the 16-pin QFN package of the LT3517EUF#PBF affect thermal performance in high-brightness backlight designs?

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