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Product Detailed Parameters
- Description:IC LED DRVR RGLTR PWM 30MA 20QFN
- Series:-
- Mfr:Diodes Incorporated
- Package:Tape & Reel (TR)
- Type:DC DC Regulator
- Topology:Switched Capacitor (Charge Pump)
- Internal Switch(s):Yes
- Number of Outputs:9
- Voltage - Supply (Min):2.7V
- Voltage - Supply (Max):5.5V
- Voltage - Output:-
- Current - Output / Channel:30mA
- Frequency:1.2MHz
- Dimming:PWM
- Applications:Backlight
- Operating Temperature:-40°C ~ 85°C (TA)
- Mounting Type:Surface Mount
- Package / Case:20-UFQFN Exposed Pad
- Supplier Device Package:QFN3030-20
- Grade:-
- Qualification:-
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Overview
The AL3158FSG-7 is a high-efficiency charge pump LED driver designed for white LED applications. It operates with an input voltage range of 2.7V to 5.5V and supports 1x/2x charge pump configurations. The device provides regulated output current up to 20mA or 30mA, depending on the specific configuration and datasheet version referenced. It utilizes a QFN3030-20 surface mount package and functions within an operating temperature range of -40°C to +85°C.
Feature Summary
- High efficiency charge pump architecture for white LED driving
- Integrated regulation for consistent LED current output
- Compact QFN3030-20 surface mount packaging
Applications
- White LED backlighting in portable devices
- LED indicator circuits requiring regulated current
- Battery-powered systems with 2.7V to 5.5V supply rails
Procurement Notes
Verify the exact suffix and package variant against the manufacturer's latest datasheet, as multiple versions (e.g., AL3158, AL3158FSG) exist with similar naming. Confirm the specific output current rating (20mA vs 30mA) required for your design, as documentation varies. Check for End-of-Life notices or Product Change Notifications regarding this component series before finalizing procurement plans.
Selection Notes
Select this component when a compact, high-efficiency charge pump solution is needed for white LEDs. Ensure the system input voltage falls within the 2.7V to 5.5V operational window. Verify that the QFN3030-20 footprint matches the PCB layout constraints. Consider thermal management requirements given the small package size and potential current loads.
Part Context
The AL3158 series from Diodes Incorporated is engineered specifically for driving white LEDs in space-constrained applications. It integrates charge pump functionality to boost voltage efficiently while regulating current. The FSG-7 suffix typically denotes a specific tape-and-reel packaging option for automated assembly.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Consult the manufacturer's official cross-reference tools or contact technical support for verified alternatives.
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