SC4540 datasheet(7/15 Pages) SEMTECH

Part #	SC4540

Description	High Effi ciency Boost Converter for up to 10 LEDs

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Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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7 / 15 page

7

Typical Characteristics (continued)

SC4540

I

OUT

(10mA/div)

PWM Operation at 20kHz and 10% Duty Cycle

2μs/div

V

LX

(20V/div)

V

EN

(5V/div)

I

OUT

(10mA/div)

PWM Operation at 32kHz and 17% Duty Cycle

V

LX

(20V/div)

V

EN

(5V/div)

2μs/div

I

OUT

(10mA/div)

PWM Operation at 50kHz and 20% Duty Cycle

1μs/div

V

LX

(20V/div)

V

EN

(5V/div)

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SC4540 Datasheet(PDF) 7 Page - Semtech Corporation

SC4540 Datasheet(HTML) 7 Page - Semtech Corporation

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