RT8470 Datasheet - Richtek

RT8470, High Brightness LED Driver

RT8470 1.2A/1A, Hysteretic, High Brightness LED Driver with Internal Switch General .
The RT8470 is a high efficiency, continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs from a v.

Features

* z 7V to 30V Input Voltage Range z Hysteretic Control with High Side Current Sensing z Internal N-MOSFETs with 350mΩ Low RDS(ON) z 1A Output Current (For TSOT-23-5 Only) z 1.2A Output Current (For SOP-8 (Exposed Pad) Only) z Up to 97% Efficiency z Typical ±5% LED Current Accuracy z Analog or PWM Cont

Applications

* z Automotive LED Lighting z High Power LED Lighting z Indicator and Emergency Lighting z Architectural Lighting z Low Voltage Industrial Lighting z Signage and Decorative LED Lighting Pin Configurations (TOP VIEW) VIN SENSE 54 23 LX GND ADJ TSOT-23-5 VIN SENSE GND ADJ 8 27 GND 36 9 45 GND LX NC

RT8470-Richtek.pdf