Single-Phase Single Chip IMVP-6/6 Vcore Power Supply

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SEMTECH

先之科

High Efficiency Boost Converter for up to 10 LEDs

The SC4540 is designed to regulate current for a series string of white LEDs in LCD backlighting applications where small size and high effi ciency are priorities. This device integrates an 800kHz current-mode PWM boost converter and a 30mA programmable low dropout current sink regulator. ·Input voltage range — 4.5V to 12V\n·Programmable LED current up to 30mA\n·Current-mode PWM control — 800kHz\n·Soft-start to reduce in-rush current\n·PWM dimming — 100Hz to 50kHz\n·PWM dimming at ISET — analog and fi ltered\n·Over-voltage protection — 38V (minimum)\n·Under-voltage lockout (UVLO)\n·T;

Semtech

先之科

Package：8-UFDFN 裸露焊盤；包裝：卷帶（TR） 類別：集成電路（IC） LED 驅(qū)動器 描述：IC LED DRVR RGLTR PWM 30MA 8MLPD

Semtech Corporation

Package：SOT-23-6；包裝：卷帶（TR）剪切帶（CT）Digi-Reel? 得捷定制卷帶 類別：集成電路（IC） LED 驅(qū)動器 描述：IC LED DRVR RGLTR PWM SOT23-6

Semtech Corporation

Package：6-UFDFN 裸露焊盤；包裝：管件 類別：集成電路（IC） LED 驅(qū)動器 描述：IC LED DRV RGLTR PWM 450MA 6MLPD

Semtech Corporation