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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 2A SOT23-6
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：18V
- Voltage - Output：18V
- Current - Output / Channel：2A (Switch)
- Frequency：350kHz
- Dimming：Analog, PWM
- Applications：Backlight, Lighting
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6
- Supplier Device Package：SOT-23-6
- Grade：-
- Qualification：-
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Overview
The RT8498GE is a current-mode LED driver supporting an input voltage range of 3V to 18V and output voltage up to 18V. It operates at an internal frequency of 350kHz. The device functions as a synchronous step-down DC-DC converter designed for high-power LED applications, including backlight and lighting systems. It features analog and PWM dimming control capabilities with a maximum output current of 2A.
Feature Summary
- Supports multi-topology configurations including step-down (Buck) and step-up (Boost) modes
- Integrates analog and PWM dimming control for precise brightness adjustment
- Utilizes current-mode control architecture for stable operation
Applications
- High-power LED backlighting systems
- General LED lighting applications
- Portable electronic device illumination
Procurement Notes
Verify the specific suffix 'GE' against the manufacturer's official datasheet to confirm package type and temperature grade. Ensure compatibility with required dimming signals and input voltage ranges before integration. Cross-reference the component marking code with the original manufacturer documentation to prevent counterfeit substitution.
Selection Notes
Select this component when a wide input voltage range from 3V to 18V is required for LED driving. Consider its synchronous buck/boost topology for efficiency in varying load conditions. Evaluate the 350kHz switching frequency against EMI constraints and external component size requirements for the specific design.
Part Context
The RT8498GE belongs to Richtek's line of LED drivers designed for versatile power conversion needs. It integrates control logic and power switches into a compact SOT-23-6 package. This series targets applications requiring efficient power management for high-brightness LEDs in space-constrained environments.
Replacement Considerations
Consult official replacement lists for direct equivalents. Verify pinout compatibility and electrical specifications such as input voltage range and output current capacity before substituting.
