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Product Detailed Parameters
- Description：IC LED DRV RGLTR NO 20MA 12UTQFN
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：6
- Voltage - Supply (Min)：2.8V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：20mA
- Frequency：1MHz
- Dimming：No
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-UFQFN
- Supplier Device Package：12-UTQFN (2x2)
- Grade：-
- Qualification：-
Download product information
Overview
The IS31BL3228B-UTLS2-TR is a low-noise, constant-frequency charge pump DC/DC converter designed for driving up to six white LED channels. It operates as a step-up regulator with no dimming capability and provides a fixed output current of 20mA per channel. The device is housed in a compact 12-UTQFN (2x2) package.
Feature Summary
- Integrates a low-noise, constant-frequency charge pump DC/DC converter
- Supports driving up to six independent white LED channels
- Provides fixed 20mA output current per channel without dimming functionality
Applications
- White LED backlighting systems
- Compact portable electronic devices requiring efficient power regulation
- Automotive interior lighting applications
Procurement Notes
Verify the specific ordering suffix UTLS2-TR against the manufacturer's official datasheet to ensure correct packaging and tape-and-reel specifications. Confirm that the component meets RoHS3 compliance requirements for your assembly process. Cross-reference the 12-UTQFN footprint dimensions during PCB layout finalization to prevent mechanical interference.
Selection Notes
Select this component when a fixed-current solution for multiple white LEDs is required without the need for PWM or analog dimming control. The integrated charge pump architecture eliminates external inductors, making it suitable for space-constrained designs where board area is limited. Ensure the input voltage range supports the target LED forward voltage configuration.
Part Context
This part belongs to Lumissil Microsystems' LED driver portfolio, specifically focusing on power management solutions for lighting applications. It complements other drivers in the series by offering a simplified, non-dimming option for standard white LED arrays, distinct from their RGB or matrix-driven products.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Verify pin-to-pin compatibility and electrical parameters before considering any alternative components from different manufacturers.
