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Analog Devices LT3517IFE#PBF — Analog & Data Acquisition

LT3517IFE#PBF DC-DC Regulator LED Driver, 1.5A Switch

MPNLT3517IFE#PBF
End of Life

Analog Devices LT3517IFE#PBF, True Color PWM™ series, DC DC Regulator LED driver, 1.5A switch, Buck/Boost topology, 250kHz to 2.5MHz, 3V to 30V supply, 16-TSSOP exposed pad, -40°C to 125°C.

$10.34Ref. price · indicative, final on quote
Packaging16-TSSOP (0.173", 4.40mm Width) Exposed Pad
RoHSROHS3 Compliant
SeriesTrue Color PWM™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LT3517IFE#PBF specifications
ParameterValue
TypeDC DC Regulator
SeriesTrue Color PWM™
MountingSurface Mount
Supply voltage30V
Current - output (Channel)1.5A (Switch)
Frequency250kHz ~ 2.5MHz
I/O channels1
Operating temperature-40°C ~ 125°C (TJ)
DimmingAnalog, PWM
PackageTube
TopologyStep-Down (Buck), Step-Up (Boost)
ApplicationsBacklight
Case16-TSSOP (0.173\", 4.40mm Width) Exposed Pad
Internal switchYes

Product details

The LT3517IFE#PBF is a DC-DC regulator LED driver from Analog Devices, part of the True Color PWM™ family. It integrates a 1.5A switch and supports both step-down (buck) and step-up (boost) topologies, making it suited for single-string LED backlight applications in displays ranging from small panels to automotive infotainment screens. The part accepts a supply from 3V to 30V, covering common 5V, 12V, and 24V rails without an external bias regulator.

The 1.5A switch current is the peak the internal FET can handle.

Frequently asked questions

What is the LT3517IFE#PBF used for?

It is a DC-DC regulator LED driver designed for backlight applications. Typical uses include LCD backlighting in automotive infotainment displays, industrial HMI panels, and outdoor signage. It drives a single string of LEDs with constant current, using buck or boost topology depending on the input-to-output voltage relationship.