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SC4505 - High Efficiency Boost Converter

Description

The SC4505 is a high-frequency PWM current-mode stepup switching regulator with an integrated 2A power transistor.

Its high switching frequency (1MHz) allows the use of tiny surface-mount external passive components.

Features

  • ‹ Two independent current sources for dual LED strands with optimal current/light matching. Backlight up to 75mA, Flash up to 125mA ‹ Wide input range from 2.6V to 12V ‹ Adaptive output voltage up to 28V with OVP protection against open circuit conditions ‹ Low shutdown current (.

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Datasheet preview – SC4505

Datasheet Details

Part number SC4505
Manufacturer Semtech Corporation
File Size 410.41 KB
Description High Efficiency Boost Converter
Datasheet download datasheet SC4505 Datasheet
Additional preview pages of the SC4505 datasheet.

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Full PDF Text Transcription

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SC4505 High Efficiency Boost Converter for Backlight/Flash LED Driver POWER MANAGEMENT Description The SC4505 is a high-frequency PWM current-mode stepup switching regulator with an integrated 2A power transistor. Its high switching frequency (1MHz) allows the use of tiny surface-mount external passive components. The internal switch is rated at 36V which makes the converter ideal for multiple LED series operation with optimal current matching. Two programmable independent current source structure allows dual panel LED backlight and flash operation. www.DataSheet4U.com The operating frequency of the SC4505 is set at 1MHz. The selected operating frequency gives the SC4505 design flexibility for size, cost and efficiency optimization.
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