The LT®3474/LT3474-1 are fixed frequency step-down DC/DC converters designed to operate as constant-current sources. An internal sense resistor monitors the output current allowing accurate current regulation, ideal for driving high current LEDs. High output current accuracy is maintained over a wide current range, from 35mA to 1A, allowing a wide dimming ran.
n n n n n n n n n n n n DESCRIPTION The LT®3474/LT3474-1 are fixed frequency step-down DC/DC converters designed to operate as constant-current sources. An internal sense resistor monitors the output current allowing accurate current regulation, ideal for driving high current LEDs. High output current accuracy is maintained over a wide current range, from 35mA to 1A, allowing a wide dimming range. Unique PWM circuitry allows a dimming range of 400:1, avoiding the color shift normally associated with LED current dimming. The high switching frequency offers several advantages, permitting the use.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | LT3470 |
Linear Technology |
Micropower Buck Regulator with Integrated Boost and Catch Diodes | |
2 | LT3470A |
Linear Technology |
Micropower Buck Regulator | |
3 | LT3470A |
Linear Technology |
Micropower Buck Regulator with Integrated Boost and Catch Diodes | |
4 | LT3471 |
Linear Technology |
1.2MHz Boost / Inverter | |
5 | LT3472 |
Linear Technology |
Boost And Inverting DC/DC Converter | |
6 | LT3473 |
Linear Technology |
Micropower 1A Boost Converter | |
7 | LT3473A |
Linear Technology |
Micropower 1A Boost Converter | |
8 | LT3474-1 |
Linear Technology |
Step-Down 1A LED Driver | |
9 | LT3475 |
Linear Technology |
Dual Step-Down l 1.5A LED Driver | |
10 | LT3475-1 |
Linear Technology |
Dual Step-Down l 1.5A LED Driver | |
11 | LT3476 |
Linear Technology |
High Current Quad Output LED Driver | |
12 | LT3477 |
Linear Technology |
DC/DC Converter |