RT8525

Boost Controller with Dimming Control

The RT8525 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.

The RT8525 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.

Applications

LCD TV, Monitor Display Backlight
LED Driver Application

Key Spec.
	RT8525
Status	Active
Vin (min) (V)	4.5
Vin (max) (V)	29
Iq (typ) (mA)	1.3
VFB (typ) (V)	1.25
Freq (typ) (kHz)	200
Duty (max) (%)	90
Features	Adjustable Current Limit;Adjustable Frequency;Adjustable Soft-Start;Current Mode Control;Enable Input;OCP;OVP;Power Good;UVP
Package Type	SOP-14

Features

VIN Range : 4.5V to 29V
Programmable Soft-Start Time
Programmable Boost SW Frequency from 50kHz to 600kHz
Output Over Voltage Protection
Output Under Voltage Protection
14-Lead SOP Package
RoHS Compliant and Halogen Free

Datasheet
Title	Last Update	Download
Boost Controller with Dimming Control	2012/03/26

Technical Documents
Title	Item Type	Last Update
Richtek Product Selection Guide [Jan., 2024]	Selection Guide	2024/01/18
Richtek Featured Product Tree [Aug., 2023]	Selection Guide	2023/08/07
LED Backlight System and Power Solutions	App. Note	2014/03/03

Part Number	Package Type	Package Qty.	Free Sample	Buy From Authorized Distributor
RT8525GS	SOP-14	2500	Request	Buy from Distributor

Please confirm with our distributor or sales representative for actual stock status.