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Product Detailed Parameters
- Description：IC LED DRIVER RGLTR 1.6A 14WDFN
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：2.8V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：1.6A
- Frequency：2MHz
- Dimming：-
- Applications：Camera Flash
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：14-WFDFN Exposed Pad
- Supplier Device Package：14-WDFN (3x2)
- Grade：-
- Qualification：-
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Overview
The RT8547GQW is a high-efficiency, high-current boost-type flash LED driver manufactured by Richtek USA Inc. It provides a maximum output current of 1.6A and operates with an internal switching frequency of 2 MHz. The device supports a supply voltage range from 2.8V to 24V and delivers an output voltage up to 5.5V. Designed for compact applications, it utilizes a 14-WDFN (3x2) package with exposed pad. The component functions as a DC-DC step-up regulator optimized for driving single-string white LEDs in portable electronic devices.
Feature Summary
- Integrates a high-current boost converter capable of delivering up to 1.6A for flash LED applications
- Operates at a fixed 2 MHz switching frequency to minimize external passive component size
- Features an internal power switch within a compact surface-mount package
Applications
- Flash LED drivers for mobile phones and smartphones
- Camera module illumination systems
- Portable consumer electronics requiring high-brightness LED control
Procurement Notes
Verify the specific suffix 'GQW' against the manufacturer's official datasheet to confirm pinout compatibility and thermal characteristics. Ensure that the procurement source provides valid RoHS compliance documentation. Confirm that the delivered components match the 14-WDFN package dimensions specified in the official Richtek documentation before integration into the design.
Selection Notes
Select this component when a compact solution for high-current flash LED driving is required. The 2 MHz operating frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Consider the 1.6A current limit and 5.5V output capability to ensure alignment with the target LED string requirements and input voltage constraints.
Part Context
This part belongs to the Richtek RT8547 series of LED drivers. It is specifically engineered for portable applications where space is limited and high brightness is necessary. The device integrates protection features typical of modern PMICs for LED lighting, ensuring reliable operation in battery-powered environments.
Replacement Considerations
Consult the official Richtek datasheet for direct pin-to-pin compatible alternatives within the same product family. Verify electrical parameters such as output current and switching frequency when evaluating cross-brand substitutes to ensure functional equivalence.
