BD83854GWL-E2

Special Purpose Regulators Overview

The BD83854GWL-E2 is a step-up and inverted output power supply IC designed for TFT-LCD displays. It operates within an input voltage range of 2.5V to 4.5V. The device supports switching frequencies up to 1MHz. It functions within an operating temperature range of -35°C to 85°C. The component is housed in a UCSP50L1C package with dimensions of 1.8mm x 1.5mm and a thickness of 0.57mm.

Special Purpose Regulators Feature Summary

• Integrates boost and inverting converter functions for display power generation
• Supports high-frequency operation to minimize external component size
• Features independent ON/OFF control signals for flexible power management
• Includes comprehensive circuit protection mechanisms

Special Purpose Regulators Applications

• TFT-LCD display driver power supplies
• Portable electronic devices requiring compact power solutions
• Mobile device display backlight inversion circuits

Special Purpose Regulators Procurement Notes

Verify the specific suffix E2 against the manufacturer's current product status page to confirm availability and compliance. Ensure the UCSP50L1C package variant matches the design requirements. Cross-reference the RoHS declaration with the latest datasheet revision. Confirm that the application environment stays within the specified thermal limits. Validate pin compatibility with existing PCB layouts before finalizing orders.

Special Purpose Regulators Selection Notes

Select this component when designing power systems for TFT-LCD panels requiring both boosted and inverted voltages from a single low-voltage source. The integrated topology reduces bill-of-materials count compared to discrete solutions. Consider the 1MHz switching frequency for optimizing inductor and capacitor sizes. Evaluate the independent control pins if sequential power-up or shutdown sequences are required for the display system.

Special Purpose Regulators Part Context

This part belongs to ROHM's series of integrated FET switching regulators tailored for portable electronics. It complements other display driver power ICs by providing specialized dual-output capabilities. The UCSP packaging aligns with industry trends toward miniaturization in mobile hardware. It serves as a dedicated solution for LCD bias generation rather than general-purpose power conversion.

Special Purpose Regulators Replacement Considerations

The BD83850GWL-E2 is a documented substitute within the same family offering similar boost/inverting functionality. Verify pinout compatibility and electrical parameter alignment before substitution. Check for any differences in package dimensions or thermal characteristics between the two variants.