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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 1.2A 8WDFN
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：24V
- Voltage - Output：43V
- Current - Output / Channel：1.2A (Switch)
- Frequency：1MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad
- Supplier Device Package：8-WDFN (2x2)
- Grade：-
- Qualification：-
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Overview
The RT8511AGQW is an asynchronous boost WLED driver IC manufactured by Richtek. It operates with a supply voltage range of 2.7 V to 24 V and delivers a maximum output current of 1.2 A. The device supports PWM dimming and features overvoltage protection. It functions at a switching frequency of 500 kHz and provides an output voltage up to 43 V. The component is housed in an 8-WDFN package and operates within a temperature range of -40°C to +85°C.
Feature Summary
- Asynchronous boost topology for white LED driving applications
- Integrated PWM dimming capability for brightness control
- Built-in overvoltage protection circuitry
Applications
- White LED backlighting systems
- Portable electronic devices requiring LED illumination
- General-purpose LED lighting drivers
Procurement Notes
Verify the specific suffix 'AGQW' against the manufacturer's official datasheet to confirm pinout, thermal pad configuration, and electrical tolerances. Ensure compatibility with system voltage requirements and thermal management constraints before integration. Cross-reference with authorized distributors to validate authenticity and lifecycle status.
Selection Notes
Select this component for designs requiring a compact solution for single-string white LED driving. Consider the 500 kHz switching frequency when designing external inductors and capacitors. Evaluate the 1.2 A switch current limit against peak LED load requirements. Verify that the 8-WDFN package fits the available PCB footprint and thermal dissipation capabilities.
Part Context
This part belongs to the Richtek RT8511 series of LED drivers. It is designed specifically for driving white LEDs in portable applications. The device integrates a high-side switch and control logic to regulate LED current efficiently. It is distinct from multi-channel variants in the same family.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer for direct replacements or compatible alternatives based on specific performance requirements.
