CXAC85183 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive two, three,four, or five LEDs in series from a Li-Ion cell. Series connec

   产品概述 返回TOPIGU嘉泰姆

The CXAC85183 is a step-up DC/DC converter specifically designed to drive white LEDs with aIGU嘉泰姆

constant current. The device can drive two, three,four, or five LEDs in series from a Li-Ion cell.IGU嘉泰姆

Series connection of the LEDs provides identical LED current resulting in uniform brightness andIGU嘉泰姆

eliminating the need for ballast resistors. The CXAC85183 switches at 1MHz, allowing the use of anyIGU嘉泰姆

tiny external components. The output capacitor can be as small as 1μF, saving space and costIGU嘉泰姆

versus alternative solutions. A low 95mV feedback voltage minimizes power loss in the current settingIGU嘉泰姆

resistor for better efficiency.IGU嘉泰姆

CXAC85183 is available in low profile SOT-23-5L package.IGU嘉泰姆

   产品特点 返回TOPIGU嘉泰姆

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Inherently Matched LED Current.IGU嘉泰姆

High Efficiency: 85% Typical.IGU嘉泰姆

Drives Up to Four LEDs from a 3.0V Supply.IGU嘉泰姆

Drives Up to Six LEDs from a 3.6V Supply.IGU嘉泰姆

Fast 1MHz Switching Frequency.IGU嘉泰姆

Uses Tiny 1mm Tall Inductors.IGU嘉泰姆

Requires Only 1μF Output Capacitor.IGU嘉泰姆

Low Profile SOT-23-5L Packaging.IGU嘉泰姆

100% Lead (Pb)-Free.IGU嘉泰姆

   应用范围 返回TOPIGU嘉泰姆

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Cellular PhonesIGU嘉泰姆

PDAs, Handheld ComputuersIGU嘉泰姆

Digital CameraIGU嘉泰姆

MP3 PlayersIGU嘉泰姆

GPS ReceiversIGU嘉泰姆

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