RT8525GS

The RT8525GS from Richtek is a boost controller with dimming control in 14 pin SOP package. This is a wide input operating voltage range step up controller. High voltage output and large output current are feasible by using an external N-MOSFET. The RT8525 input operating range is from 4.5V to 29V. It is an optimized design for wide output voltage range applications. The output voltage of the RT8525 can be adjusted by the FB pin. The PWMI pin can be used as a digital input allowing WLED brightness control with a logic-level PWM signal. It is used in LED driver application and LCD TV, monitor display backlight.

• Programmable soft-start time, soft-start current of 5µA
• Programmable boost SW frequency from 50KHz to 600KHz
• Output over voltage protection
• Output under voltage protection
• Quiescent current of 2mA, shutdown current of 10µA
• Switching frequency of 200KHz, 250ns minimum on-time & 90% maximum duty
• Rise time of 6ns, fall time of 5ns at CLOAD = 1nF
• Thermal shutdown temperature of 150°C
• Operating temperature range from -40°C to 85°C
• Thermal shutdown hysteresis of 50°C

Applications

Power Management, LED Lighting, Consumer Electronics, Portable Devices

Warnings

Devices is ESD sensitive handling precaution is recommended.

Notes

Devices is ESD sensitive handling precaution is recommended.