1.6MHz 1A Constant Current Buck Regulator For Powering LEDs

Integrated with a 1A power Switch the LM3405 is a current-mode control switching buck Regulator designed to provide a simple, high efficiency solution for driving high power LEDs With a 0.205V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as needed for driving various types of LEDs Switching frequency is internally set to 1.6MHz, allowing small surface mount inductors and capacitors to be used. The LM3405 utilizes current-mode control and internal compensation offering ease of use and predictable, high performance regulation over a wide range of operating conditions. Additional features include user accessible EN/DIM pin for enabling and PWM dimming of LEDs thermal shutdown, cycle-by-cycle current limit and over-current protection.
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM3405AXMYX/NOPB Texas Instruments 1.6MHz, 1A Constant Current Buck LED Driver with Internal Compensation 8-MSOP-PowerPAD
LM3405XMKX/NOPB Texas Instruments 1.6MHz 1A Constant Current Buck Regulator for Powering LEDs 6-SOT-23-THIN -40 to 125
LM3405AXMK/NOPB Texas Instruments 1.6MHz, 1A Constant Current Buck LED Driver with Internal Compensation 6-SOT-23-THIN -40 to 125
LM3405AXMY/NOPB Texas Instruments 1.6MHz, 1A Constant Current Buck LED Driver with Internal Compensation 8-MSOP-PowerPAD
LM3405AXMKE/NOPB Texas Instruments 1.6MHz, 1A Constant Current Buck LED Driver with Internal Compensation 6-SOT-23-THIN -40 to 125
LM3405A-REF Texas Instruments LM3405A Reference Design for MR16 LED Bulb, 600mA
LM3405XMK/NOPB Texas Instruments 1.6MHz 1A Constant Current Buck Regulator for Powering LEDs 6-SOT-23-THIN -40 to 125
LM3405AXMKX/NOPB Texas Instruments 1.6MHz, 1A Constant Current Buck LED Driver with Internal Compensation 6-SOT-23-THIN -40 to 125
LM3405 's PackagesLM3405 's pdf datasheet
LM3405XMK TSOT
LM3405XMKX TSOT




LM3405 Pinout, Pinouts
LM3405 pinout,Pin out
This is one package pinout of LM3405,If you need more pinouts please download LM3405's pdf datasheet.

LM3405 Application circuits
LM3405 circuits
This is one application circuit of LM3405,If you need more circuits,please download LM3405's pdf datasheet.


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