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LT3466

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

Linear Technology 

LT3466

TYPICAL APPLICATIO

12V to 25/25 White LEDs

CAR BATTERY

12V (TYP)

9V TO 18V

VLED1

D5

D6

C4

0.1µF

D7

25

LEDs

C5

D8

0.1µF

D9

C2

0.1µF

C3

0.1µF

L1

33µH

3.3V

L2

33µH

D10

C7

0.1µF

C8

0.1µF

CIN

D1

D2

C9

0.1µF

D3

VLED2

SW1 VIN

SW2

25

D4

C10 LEDs

0.1µF

VOUT1

C6

VOUT2

0.22µF

LT3466

C11

0.22µF

RFB1

13.3Ω

FB1

CIN: TAIYO YUDEN JMK107BJ105

C2-C5, C7-C10: TAIYO YUDEN UMK212BJ104

CTRL1

C6, C11: TAIYO YUDEN UMK316BJ224

D1-D8: PHILIPS BAV99

D9, D10: PHILIPS BAS16

OFF ON

L1, L2: TOKO A914BYW-330M

FB2

RT CTRL2

20.5k

1%

OFF ON

RFB2

13.3Ω

3466 TA10a

Conversion Efficiency

85

VIN = 12V

25/25 LEDs

80

75

70

65

60

55

50

0

5

10

LED CURRENT (mA)

15

3466 TA10b

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PART NUMBER

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LT1932

LT1937

LTC3200

DESCRIPTION

Constant Current, Constant Voltage 1.24MHz, High Efficiency

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Constant Current, 1.2MHz, High Efficiency White LED Boost

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Constant Current, 1.2MHz, High Efficiency White LED Boost

Regulator

Low Noise, 2MHz, Regulated Charge Pump White LED Driver

LTC3201

Low Noise, 1.7MHz, Regulated Charge Pump White LED Driver

LTC3202

Low Noise, 1.5MHz, Regulated Charge Pump White LED Driver

LTC3205/LTC3206 High Efficiency, Multidisplay LED Controller

LT3465/LT3465A

Constant Current, 1.2MHz/2.7MHz, High Efficiency White LED

Boost Regulator with Integrated Schottky Diode

ThinSOT is a trademark of Linear Technology Corporation.

COMMENTS

Up to 16 White LEDs, VIN: 1.6V to 18V, VOUT(MAX) = 34V,

IQ = 1.8mA, ISD < 1µA, MS Package

Up to 8 White LEDs, VIN: 1V to 10V, VOUT(MAX) = 34V,

IQ = 1.2mA, ISD < 1µA, ThinSOTTM Package

Up to 4 White LEDs, VIN: 2.5V to 10V, VOUT(MAX) = 34V,

IQ = 1.9mA, ISD < 1µA, ThinSOT, SC70 Packages

Up to 6 White LEDs, VIN: 2.7V to 4.5V, IQ = 8mA, ISD < 1µA,

MS Package

Up to 6 White LEDs, VIN: 2.7V to 4.5V, IQ = 6.5mA, ISD < 1µA,

MS Package

Up to 8 White LEDs, VIN: 2.7V to 4.5V, IQ = 5mA, ISD < 1µA,

MS Package

Up to 4 (Main), 2 (Sub) and RGB, VIN: 2.8V to 4.5V,

IQ = 50µA, ISD < 1µA, QFN-24 Package

Up to Six White LEDs, VIN: 2.7V to 16V, VOUT(MAX) = 34V,

IQ = 1.9mA, ISD < 1µA, ThinSOT Package

20 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com

3466fa

LT/LT 0305 REV A • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 2004

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