Step-Up (Boost) LED Drivers
Analog Devices step-up (boost) LED drivers provide current control of multiple LEDs and support for high brightness LED lighting, large format LED backlighting, camera-enabled smart devices, and a range of related applications. Members of this portfolio include I2C-compatible programming interfaces, with compact, high efficiency features suited to your design needs.
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LT Journal
- Synchronous, Low EMI LED Driver Features Integrated Switches and Internal PWM Dimming PDF
- One LED Driver Is All You Need for Automotive LED Headlight Clusters (LT3795) PDF
- Boost-Buck LED Driver Topology for Automotive LEDs Operates with Low Input and Output Ripple (LT3952) PDF
- Boost-then‑Buck LED Drivers Enable Wide PWM Dimming Range with Wide-Ranging Input Voltages (LT3797) PDF
- LED Controller with Dual Current Regulation Loops Detects Faulty LEDs, Provides 100:1 Analog Dimming PDF
- LED Driver with Integrated Spread Spectrum Reduces EMI without Adding Flicker (LT3795) PDF
- Accurate PWM LED Dimming without External Signal Generators, Clocks or µControllers PDF
- Combined Voltage and Current Control Loops Simplify LED Drivers, High Capacity Battery/Supercap Chargers & MPPT* Solar Applications PDF
- 4mm × 7mm IC Produces Seven Regulated Outputs and a Dual-String LED Driver PDF
- January 2009 - 100V Controller in 3mm × 3mm QFN or MSE Drives High Power LED Strings from Just About Any Input PDF
- April 2010 - 140W Monolithic Switching Regulator Simplifies Constant-Current/Constant-Voltage Regulation PDF
- September 2009 - 4W LED Driver Includes Power Switch, Compensation Components and Schottky in 16-Pin MSOP PDF
- June 2009 - Triple Output LED Driver Works with Inputs to 60V and Delivers 3000:1 PWM Dimming PDF
- March 2009 - Don’t Want to Hear It? Avoid the Audio Band with PWM LED Dimming at Frequencies Above 20kHz PDF
- June 2008 - White LED Driver with Output Disconnect and 1-Wire Current Programming PDF
- Oct 2007 -LED Driver Yields 3000:1 True Color PWM Dimming with Any Buck, Boost or Buck-Boost Topology from a Wide 3V–40V Input Range PDF
- Oct 2007 - Light Up 12 LEDs from a Single-Cell Li-Ion Battery via Highly Integrated 3mm x 2mm Dual-LED-String Driver PDF
- Oct 2007 - White LED Driver and OLED Driver with Integrated Schottkys and Output Disconnect in 3mm x 2mm DFN PDF
- Jun 2007 - 4.5A Monolithic LED Drivers with 3000:1 Dimming are Ideal for a Wide Range of High Power LED Applications PDF
- Jun 2007 - Triple Output LED Driver Delivers 3000:1 Dimming Ratio in Buck, Boost or Buck-Boost Mode PDF
- Dec 2006 - Reliable, Efficient LED Backlighting for Large LCD Displays PDF
- June 2006 Dual Step-Up Converter Drives White LEDs with 1000:1 PWM Dimming PDF
- Dec 2005 Multi-Output Supply Drives White LEDs, Provides LCD or OLED Bias in a 3mm x 3mm DFN Package PDF
- Dec 2005 Constant Current from 3A DC/DC Converter with 2 Rail-to-Rail Current Sense Amplifiers PDF
Technical Articles
Videos
- LT3956 Video Product Brief
- Spread Spectrum Frequency Modulation Reduces Automotive LED Driver EMI
- Low EMI LED Driver with Synchronous Internal 2A Switches
- 60V LED Driver with Internal 4A Switch for Automotive Lighting (LT3952)
- High Power Three-Channel LED Driver (LT3797)
- 60V 8-Switch Matrix LED Dimmer (LT3965)
Design Notes
- DN557 - Low EMI LED Driver Features 2A, 40V, Integrated, Synchronous Switches for Automotive Lightin PDF
- DN556 - 3A, 1MHz Buck Mode LED Driver with Integrated Voltage Limiting PDF
- DN376 - Monolithic Converter Drives High Power LEDs PDF
- DN340 - DC/DC Converter Drives Lumileds White LEDs from a Variety of Power Sources PDF
- DN325 - High Efficiency ThinSOT White LED Driver Features Internal Switch and Schottky Diode PDF
- DN315 - White LED Driver in Tiny SC70 Package Delivers High Efficiency and Uniform LED Brightness PDF
- DN267 - High Efficiency White LED Driver Guarantees Matching LED Brightness PDF
- DN252 - Current-Limited DC/DC Converter Simplifies USB Power Supplies PDF
- DN462 - Reduce the Cost and Complexity of Medium LCD LED Backlights with a Single Inductor LED Driver for 60 LEDs PDF
- DN461 - 100V Controller Drives High Power LED Strings from Just about Any Input PDF
- DN449 - Triple LED Driver in 4mm × 5mm QFN Supports LCD Backlights in Buck, Boost or Buck-Boost Modes and Delivers 3000:1 PWM Dimming Ratio PDF
- DN1009 - Tiny, Efficient High Power LED Camera Flash Solutions for Cell Phone Applications PDF
- DN1010 - Dual White LED Driver Features Integrated Switches and Schottky Diodes in 3mm × 3mm DFN Package PDF
- DN406 - Versatile High Power LED Driver Controller Simplifies Design PDF
Step-Up (Boost) LED Drivers
| SortOrder | Part# | Number of Outputs | Vin (min) (V) | Vin (max) (V) | Switch Current (typ) (A) | Vout Max (typ) (V) | Topology | Monolithic | US Price 1000 to 4999 ($ US) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | LT3922 | 1 | 2.8 | 36 | 2.3 | 40 | Boost, Buck, Buck-Boost | Yes | $2.71 (LT3922EUFD#PBF) |
| 2 | LT3761A | 1 | 4.5 | 60 | 25 | 100 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $3.20 (LT3761AEMSE#PBF) |
| 3 | LT3909 | 2 | 2.9 | 40 | 1.1 | 36 | Boost, LED Driver | Yes | $2.50 (LT3909EDD#PBF) |
| 4 | LT3761 | 1 | 4.5 | 60 | 25 | 100 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $3.20 (LT3761EMSE#PBF) |
| 5 | LT3952 | 1 | 3 | 42 | 4.5 | 60 | Boost, Buck, Buck-Boost, LED Driver | Yes | $3.95 (LT3952EFE#PBF) |
| 6 | LT3795 | 1 | 4.5 | 110 | 25 | 110 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $3.45 (LT3795EFE#PBF) |
| 7 | ADD5211 | - | 4.5 | 40 | - | 80 | Boost, LED Driver | Yes | - |
| 8 | LT3955 | 1 | 4.5 | 60 | 4.2 | 80 | Boost, Buck, Buck-Boost, LED Driver, Sepic | Yes | $3.75 (LT3955EUHE#PBF) |
| 9 | LT3954 | 1 | 4.5 | 40 | 6.3 | 40 | Boost, Buck, Buck-Boost, LED Driver, Sepic | Yes | $3.60 (LT3954EUHE#PBF) |
| 10 | LT3797 | 3 | 2.5 | 40 | 20 | 100 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $4.95 (LT3797EUKG#PBF) |
| 11 | LT3796 | 1 | 6 | 100 | 25 | 100 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $3.45 (LT3796EFE#PBF) |
| 12 | ADD5205 | 4 | 2.8 | 18 | - | - | Boost, LED Driver | Yes | - |
| 13 | LTM8042-1 | 1 | 3 | 30 | 350m | 32 | Boost, Buck, LED Driver | Yes | $8.76 (LTM8042EV-1#PBF) |
| 14 | LTM8042 | 1 | 3 | 30 | 1 | 32 | Boost, Buck, LED Driver | Yes | $8.76 (LTM8042EV#PBF) |
| 15 | LTC3675 | 7 | 2.7 | 5.5 | 2.8 | 5.5 | Buck, LED Driver | Yes | $5.05 (LTC3675EUFF#PBF) |
| 16 | ADD5203 | 8 | 6 | 21 | - | 45 | Boost, LED Driver | Yes | - |
| 17 | ADP8863 | 7 | 2.5 | 5.5 | - | 5.5 | Boost, LED Driver | Yes | $0.99 (ADP8863ACBZ-R7) |
| 18 | ADP8861 | 7 | 2.5 | 5.5 | - | 5.5 | Boost, LED Driver | Yes | $0.99 (ADP8861ACPZ-R7) |
| 19 | LT3760 | 8 | 6 | 40 | 500m | 45 | Boost, LED Driver | No | $4.25 (LT3760EFE#PBF) |
| 20 | ADD5207 | 4 | 2.6 | 21 | - | 36 | Boost, LED Driver | Yes | - |
| 21 | LT3754 | 16 | 6 | 40 | 600m | 45 | Boost, LED Driver | No | $4.25 (LT3754EUH#PBF) |
| 22 | LT3519 | 1 | 3 | 30 | 980m | 45 | Boost, Buck, Buck-Boost, LED Driver, Sepic | Yes | $2.50 (LT3519EMS#PBF) |
| 23 | ADP8860 | 7 | 2.5 | 5.5 | - | 5.5 | Boost, LED Driver | Yes | $1.02 (ADP8860ACPZ-R7) |
| 24 | LT3956 | 1 | 4.5 | 80 | 3.3 | 80 | Boost, Buck, Buck-Boost, Flyback, LED Driver, Sepic | Yes | $3.50 (LT3956EUHE#PBF) |
| 25 | LT3598 | 6 | 3.2 | 30 | 330m | 44 | Boost, LED Driver, Sepic | Yes | $2.95 (LT3598EUF#PBF) |
| 26 | LT3756 | 1 | 6 | 100 | 25 | 100 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $2.90 (LT3756EUD-2#PBF) |
| 27 | LT3755 | 1 | 4.5 | 40 | 25 | 75 | Boost, Buck, Buck-Boost, LED Driver, Sepic | No | $2.75 (LT3755EUD#PBF) |
| 28 | LT3599 | 4 | 3 | 30 | 625m | 44 | Boost, LED Driver, Sepic | Yes | $3.25 (LT3599EUH#PBF) |
| 29 | LT3492 | 3 | 3 | 30 | 1 | 60 | Boost, Buck, Buck-Boost, LED Driver | Yes | $3.70 (LT3492EUFD#PBF) |
| 30 | LT3593 | 1 | 2.7 | 5.5 | 700m | 45 | Boost, LED Driver | Yes | $1.40 (LT3593EDC#TRPBF) |
| 31 | LT3517 | 1 | 3 | 30 | 1.9 | 40 | Boost, Buck, Buck-Boost, LED Driver | Yes | $2.70 (LT3517EUF#PBF) |
| 32 | LT3518 | 1 | 3 | 40 | 2.8 | 45 | Boost, Buck, Buck-Boost, LED Driver | Yes | $2.95 (LT3518EUF#PBF) |
| 33 | LT3498 | 2 | 2.5 | 12 | 425m | 32 | Boost, LED Driver | Yes | $1.95 (LT3498EDDB#TRPBF) |
| 34 | LT3496 | 3 | 3 | 30 | 1 | 45 | Boost, Buck, Buck-Boost, LED Driver | Yes | $3.50 (LT3496EUFD#PBF) |
| 35 | ADP1653 | 2 | 2.75 | 5.5 | - | 12 | Boost, LED Driver | Yes | - |
| 36 | LT3476 | 4 | 2.8 | 16 | 2 | 36 | Boost, Buck, Buck-Boost, LED Driver | Yes | $4.64 (LT3476EUHF#PBF) |
| 37 | LT3591 | 1 | 2.5 | 12 | 800m | 42 | Boost, LED Driver | Yes | $1.40 (LT3591EDDB#TRPBF) |
| 38 | LT3497 | 2 | 2.5 | 10 | 400m | 35 | Boost, LED Driver | Yes | $1.70 (LT3497EDDB#TRPBF) |
| 39 | LT3478 | 1 | 2.8 | 36 | 6.3 | 42 | Boost, Buck, Buck-Boost, LED Driver | Yes | $3.60 (LT3478EFE#PBF) |
| 40 | LTC3783 | 1 | 3 | 36 | 25 | 100 | Boost, Flyback, LED Driver, Sepic | No | $2.85 (LTC3783EDHD#PBF) |
| 41 | LT3486 | 2 | 2.4 | 24 | 1.3 | 35.4 | Boost, LED Driver | Yes | $2.50 (LT3486EDHC#PBF) |
| 42 | LTC3490 | 1 | 1 | 3.2 | 2 | 4 | Boost, LED Driver | Yes | $2.10 (LTC3490EDD#PBF) |
| 43 | LT3477 | 1 | 2.3 | 25 | 4 | 40 | Boost, Buck, Buck-Boost, LED Driver | Yes | $3.15 (LT3477EUF#PBF) |
| 44 | LT3466-1 | 2 | 2.7 | 24 | 400m | 39.5 | Boost, LED Driver | Yes | $1.95 (LT3466EDD-1#PBF) |
| 45 | LT3491 | 1 | 2.5 | 12 | 350m | 24 | Boost, LED Driver | Yes | $1.30 (LT3491EDC#TRPBF) |
| 46 | LT1942 | 4 | 2.6 | 16 | 750m | 36 | Boost, Flyback, Inverting, LED Driver, Sepic | Yes | $2.75 (LT1942EUF#PBF) |
| 47 | LT3465A | 1 | 2.7 | 16 | 340m | 30 | Boost, LED Driver | Yes | $1.41 (LT3465AES6#TRPBF) |
| 48 | LT3465 | 1 | 2.7 | 16 | 340m | 30 | Boost, LED Driver | Yes | $1.41 (LT3465ES6#TRPBF) |
| 49 | LT3466 | 2 | 2.7 | 24 | 400m | 39.5 | Boost, LED Driver | Yes | $2.20 (LT3466EDD#PBF) |
| 50 | LT1937 | 1 | 2.5 | 10 | 320m | 36 | Boost, LED Driver | Yes | $1.36 (LT1937ES5#TRPBF) |
| 51 | LT1932 | 1 | 1 | 10 | 550m | 36 | Boost, LED Driver | Yes | $1.81 (LT1932ES6#TRPBF) |
| 52 | LT1618 | 1 | 1.6 | 18 | 2 | 36 | Boost, Flyback, Sepic | Yes | $1.75 (LT1618EDD#PBF) |
