LT3466

PRODUCTION

Dual Full Function White LED Step-Up Converter with Built-In Schottky Diodes

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Part Models
4
1ku List Price
Starting From $2.98
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Part Details

  • Drives Up to 20 White LEDs (10 in Series per Converter) from a 3.6V Supply
  • Two Independent Step-Up Converters Capable of Driving Asymmetric LED Strings
  • Independent Dimming and Shutdown Control of the Two LED Strings
  • Internal Schottky Diodes
  • Internal Soft-Start Eliminates Inrush Current
  • Open LED Protection (39.5V Max VOUT)
  • Fixed Frequency Operation Up to 2MHz
  • 81% Efficiency Driving 16 White LEDs at 15mA (Eight per Driver) from a 3.6V Supply
  • Wide Input Voltage Range: 2.7V to 24V
  • Available in 10-Pin DFN and 16-Pin Thermally Enhanced TSSOP Packages
LT3466
Dual Full Function White LED Step-Up Converter with Built-In Schottky Diodes
Figure 1. Li-Ion Powered Driver for 8/8 White LEDs Conversion Efficiency Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 2

Technical Articles 1

Data Sheet

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Hardware Ecosystem

Parts Product Life Cycle Description
Analog Temperature Sensors 1
LTC2997
PRODUCTION Remote/Internal Temperature Sensor
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LT3466
  • LT3466-1
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
DC915A

LT3466EDD-1 Demo Board | Boost LED Driver Plus LCD Bias Supply, 2.7V ≤ VIN ≤ 14V, VLED up to 34V @ 15mA, VLCD Bias = ±15V @ 10mA

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Product Details

Demonstration circuit DC915 features the LT3466-1 high efficiency boost white LED driver and a step-up converter. There is one LED driver output for 6 or 8 WLEDs and a separate DC/DC converter that generates outputs for the LCD bias. VO1 drives 8 LEDs in series with 15mA LED current and VO2/VO3 can delivery ±15V at 10mA current. If the charge-pump circuitry which generates VO3 is removed (C4, C5 and D1), VO2 can deliver over 35mA of current. The input voltage range is 3V to 14V, but can go as low as 2.7V with slightly reduced output current.
DC915A
LT3466EDD-1 Demo Board | Boost LED Driver Plus LCD Bias Supply, 2.7V ≤ VIN ≤ 14V, VLED up to 34V @ 15mA, VLCD Bias = ±15V @ 10mA
DC915A - Schematic

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