LT3518 查看數據表（PDF） - Analog Devices

零件编号

产品描述 (功能)

生产厂家

LT3518

Full-Featured LED Driver with 2.3A Switch Current

Analog Devices 

LT3518

Typical Application

5.5V SEPIC Converter with Short-Circuit Protection

L1

2.4µH

C5

10µF

D1

VIN

3V

C1

2.2µF

SHDN

VIN PWM

CTRL

SYNC

SHDN LT3518

TGEN

VREF

VC GND

SW

FB

TG

ISP

ISN

RT

SS

L2

2.4µH

R3

10k

C4

10nF

C3

0.1µF

RT

6.04k

2MHz

C1: KEMET C0805C225K4RAC

C2, C5: KEMET C1206C106K4RAC

C3: MURATA GRM21BR71H104KA01B

C4: MURATA GCM033R71A103KA03

D1: ZETEX ZLLS2000TA

L1, L2: TOKO 962BS-2R4M

RSENSE

0.15Ω

C2

10µF

VOUT

5.5V

500mA

R1

221k

R2

49.9k

3518 TA07a

100

90

80

70

60

50

40

30

0

Efficiency

100 200 300 400 500

ILOAD (mA)

3518 TA07b

Related Parts

PART NUMBER

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LT3478/LT3478-1

LT3479

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LT3517

LT3590

LT3595

LTC®3783

DESCRIPTION

COMMENTS

Constant Current, 1.4MHz, 1.5A Boost Converter

VIN: 5V to 18V, VOUT(MAX) = 36V, Dimming = Analog/PWM, ISD < 1µA,

MSOP10 Package

3-Channel LED Ballaster with PWM Dimming

VIN: 3V to 48V, Dimming = 3000:1 True Color PWM, ISD < 5µA,

MSOP10 Package

36V, 1A (ILED), 2MHz, Step-Down LED Driver

Dual 1.5A (ILED), 36V 2MHz Step-Down LED Driver

Quad Output 1.5A, 36V, 2MHz High Current LED Driver

with 1,000:1 Dimming

3A, 42V, 3MHz Boost, Buck-Boost, Buck LED Driver

VIN: 4V to 36V, VOUT(MAX) = 13.5V, Dimming = 400:1 True Color PWM,

ISD < 1µA, TSSOP16E Package

VIN: 4V to 36V, VOUT(MAX) = 13.5V, Dimming = 3000:1 True Color PWM,

ISD < 1µA, TSSOP20E Package

VIN: 2.8V to 16V, VOUT(MAX) = 36V, Dimming = 1000:1 True Color PWM,

ISD < 10µA, 5mm × 7mm QFN Package

VIN: 2.5V to 25V, VOUT(MAX) = 40V, Dimming = Analog/PWM, ISD < 1µA,

QFN, TSSOP20E Packages

4.5A, 42V, 2.5MHz High Current LED Driver with 3,000:1

Dimming

3A, Full Featured DC/DC Converter with Soft-Start and

Inrush Current Protection

VIN: 2.8V to 36V, VOUT(MAX) = 42V, Dimming = 3000:1 True Color PWM,

ISD < 3µA, TSSOP16E Packages

VIN: 2.5V to 24V, VOUT(MAX) = 40V, IQ = 6.5mA, ISD < 1µA,

DFN and TSSOP Packages

Dual 1.3A, 2MHz High Current LED Driver

Triple Output LED Driver

Full-Featured LED Driver with 1.5A Switch Current

48V Buck Mode 50mA LED Driver

16 Channel Buck LED Driver Mode

VIN: 2.5V to 24V, VOUT(MAX) = 36V, Dimming = 1000:1 True Color PWM,

ISD < 1µA, 5mm × 3mm DFN, TSSOP16E

VIN: 3V to 40V, VOUT(MAX) = 45V, Dimming = 3000:1 True Color PWM,

ISD < 10µA, 4mm × 5mm QFN Package

VIN: 3V to 40V, VOUT(MAX) = 45V, Dimming = 5000:1 True Color PWM,

ISD < 1µA, 4mm × 4mm QFN and TSSOP Packages

VIN: 4.5V to 55V, Drives Up to 10 LEDs, 200:1 Dimming,

ISO = 15mA, 2mm × 2mm DFN SC70

VIN: 4.5V to 45V, Drives Up to 160 LEDs, 5000:1 Dimming,

5mm × 9mm QFN

High Current LED Controller

VIN: 3V to 36V, VOUT(MAX) = Ext FET, Dimming = 3000:1 True Color PWM,

ISD < 20µA, 5mm × 4mm QFN10, TSSOP16E Packages

20

For more information www.linear.com/LT3518

3518ff

LT 0317 REV F • PRINTED IN USA

www.linear.com/LT3518

 LINEAR TECHNOLOGY CORPORATION 2007

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