LM3519MK-20/NOPB

$1.58

Description：IC LED DRVR RGLTR PWM TSOT23-6
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:8c23c34aff89 Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

LM3519MK-20/NOPB is listed in the LED Driver IC range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC LED DRVR RGLTR PWM TSOT23-6. Review the specifications below when checking this part for your BOM.

LED Driver IC specifications for LM3519MK-20/NOPB

Description：IC LED DRVR RGLTR PWM TSOT23-6
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Type：DC DC Regulator
Topology：Step-Up (Boost)
Internal Switch(s)：Yes
Number of Outputs：1
Voltage - Supply (Min)：2.7V
Voltage - Supply (Max)：5.5V
Voltage - Output：20V
Current - Output / Channel：20mA
Frequency：5.4MHz
Dimming：PWM
Applications：Backlight
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：SOT-23-6 Thin, TSOT-23-6
Supplier Device Package：TSOT-23-6
Grade：-
Qualification：-

LED Driver IC datasheet and documents for LM3519MK-20/NOPB

LM3519MK-20/NOPB

LED Driver IC Overview

The LM3519MK-20/NOPB is a high-frequency boost white LED driver IC manufactured by Texas Instruments. It operates within an input voltage range of 2.7 V to 5.5 V and delivers a constant output current of 20 mA. The device supports a switching frequency between 2 MHz and 8 MHz, with a nominal operating frequency of 5.4 MHz. It features a maximum output voltage of 20 V and includes integrated overvoltage protection. Packaged in a SOT-23-Thin-6 (TSOT-23-6) surface-mount format, it functions across a temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

Integrates a high-frequency boost converter topology for efficient white LED driving.
Supports PWM dimming control for brightness regulation.
Includes built-in overvoltage protection circuitry.

LED Driver IC Applications

LED backlighting systems
White LED lighting drivers

LED Driver IC Procurement Notes

Verify the specific suffix 'NOPB' confirms RoHS compliance and absence of lead-based materials. Confirm the package designation matches TSOT-23-6 requirements for the target PCB layout. Ensure the operating environment stays within the specified -40°C to +85°C thermal limits. Cross-reference the datasheet for any recent product change notices affecting pinout or electrical characteristics.

LED Driver IC Selection Notes

Select this component when a compact, single-channel boost driver is required for white LEDs. It is suitable for applications needing a wide input voltage range and high switching frequencies to minimize external passive component size. Consider the 20 mA output limit and 20 V max voltage against load requirements.

LED Driver IC Part Context

This part belongs to the LM3519 series of LED lighting driver ICs from Texas Instruments. It is designed as a DC-DC regulator specifically for driving white LEDs in portable and general lighting applications. The series focuses on high efficiency and small form factor solutions using inductive boost topologies.