深圳市科瑞芯电子有限公司

微源半导体 LP3382 SOT23-6 用于8PCS白色LED串联的高性能恒流开关稳压器

General description

The LP3382 is a 1MHz PWM boost switching regulator designed for constant- current white LED driver applications. The LP3382 can drive a string of up to 8 white LEDs in series, ensuring uniform brightness and eliminating several ballast resistors. The LP3382 implements a constant frequency 1MHz PWM control scheme. The high frequency PWM operation also saves board space by reducing external component sizes. To improve efficiency, the feedback voltage is set to 250 mV, which reduces the power dissipation in the current setting resistor.

Highly integration and internal compensation network minimizes as 5 external component counts. Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency.

Application

◆ WLED Backlight driver

◆ OLED Backlight driver

◆ PDA

◆ MID

科瑞芯电子秉持[追求品质、专*业诚信、持续创*新]的理念，为客户提供工业标品质、低成*本的半导体件，提供专*业技术支援及完*整的解决方案。持续追求、不断创*新以及提供更佳更广的准、高服务，协助客户及厂商提高竞争能力，致力于成为电子半导体通路商之一。