LT1618 データシートの表示（PDF） - Linear Technology

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LT1618

Constant-Current/Constant-Voltage 1.4MHz Step-Up DC/DC Converter

Linear Technology 

TYPICAL APPLICATIONS

Li Ion White LED Driver

VIN

2.7V TO 5V

C1

4.7µF

10kHz TO 50kHz

PWM

BRIGHTNESS

ADJUST

R3

5.1k

C3

0.1µF

L1

10µH

D1

8

VIN

9

SHDN

7

SW

3

ISP

2

ISN

4

LT1618

1

IADJ

FB

GND

VC

5

10

CC

0.1µF

2.49Ω

20mA

R1

2M

C2

R2

1µF

100k

C1: TAIYO YUDEN JMK212BJ475

C2: TAIYO YUDEN TMK316BJ105

D1: ON SEMICONDUCTOR MBR0530

L1: SUMIDA CLQ4D10-100

(408) 573-4150

(408) 573-4150

(800) 282-9855

(847) 956-0666

1618 • TA04

LT1618

White LED Driver for 20 LEDs

VIN

2.7V TO 5V

C1

4.7µF

10kHz TO 50kHz

PWM

BRIGHTNESS

ADJUST

R3

5.1k

C3

0.1µF

L1

10µH

D1

8

7

VIN

9

SHDN

SW

3

ISP

2

ISN

4

LT1618

IADJ

1

FB

GND

VC

5

10

CC

0.1µF

0.619Ω 80mA

R1

2M

C2

R2

1µF

121k

51Ω 51Ω 51Ω 51Ω

C1: TAIYO YUDEN JMK212BJ475

C2: TAIYO YUDEN TMK316BJ105

D1: ON SEMICONDUCTOR MBR0530

L1: SUMIDA CR43-100

(408) 573-4150

(408) 573-4150

(800) 282-9855

(847) 956-0666

1618 • TA05

sn1618 1618fas

11

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