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LT3519-1 - LED Driver

Download the LT3519-1 datasheet PDF. This datasheet also covers the LT3519 variant, as both devices belong to the same led driver family and are provided as variant models within a single manufacturer datasheet.

General Description

The LT®3519/LT3519-1/LT3519-2 are fixed frequency step-up DC/DC converters designed to drive LEDs.

They feature an internal 45V, 750mA low side switch and Schottky diode.

Key Features

  • n Up to 3000:1 True Color PWM™ Dimming n Wide Input Voltage Range Operation from 3V to 30V Transient Protection to 40V n Rail-to-Rail LED Current Sense from 0V to 45V n 45V, 750mA Internal Switch n Internal Schottky Diode n Constant-Current and Constant-Voltage Regulation n Boost, SEPIC, Buck-Boost Mode or Buck Mode Topology n Open LED Protection and Open LED Status Pin n Programmable Undervoltage Lockout with Hysteresis n Fixed Frequency: 400kHz (LT3519), 1MHz (LT3519-1), 2.2MHz (LT3519-2) n In.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LT3519_LinearTechnology.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LT3519 LED Driver Linear Technology
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Other Datasheets by Linear Technology (now Analog Devices)

Part Number Description
LT3519-2 LED Driver
LT3514 Triple Step-Down Switching Regulator
LT3504 Quad 40V/1A Step-Down Switching Regulator
LT3507A Triple Monolithic Step-Down Regulator
LT3571 75V DC/DC Converter

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LT3519/LT3519-1/LT3519-2 LED Driver with Integrated Schottky Diode FEATURES n Up to 3000:1 True Color PWM™ Dimming n Wide Input Voltage Range Operation from 3V to 30V Transient Protection to 40V n Rail-to-Rail LED Current Sense from 0V to 45V n 45V, 750mA Internal Switch n Internal Schottky Diode n Constant-Current and Constant-Voltage Regulation n Boost, SEPIC, Buck-Boost Mode or Buck Mode Topology n Open LED Protection and Open LED Status Pin n Programmable Undervoltage Lockout with Hysteresis n Fixed Frequency: 400kHz (LT3519), 1MHz (LT3519-1), 2.2MHz (LT3519-2) n Internal Compensation n CTRL Pin Provides Analog Dimming n Low Shutdown Current: <1μA n 16-Lead MSOP Package DESCRIPTION The LT®3519/LT3519-1/LT3519-2 are fixed frequency step-up DC/DC converters designed to drive LEDs.