LM3241TLE/DRSN

Special Purpose Regulators Overview

The LM3241TLE/DRSN is a miniature, adjustable step-down DC-DC converter manufactured by National Semiconductor. It features a fixed switching frequency of 6 MHz and supports an output current of up to 750 mA. The device is designed for RF power amplifier applications, offering a compact footprint suitable for space-constrained designs.

Special Purpose Regulators Feature Summary

• Integrated synchronous buck topology for high efficiency
• Fixed 6 MHz switching frequency enables small external component size
• Adjustable output voltage range for flexible design
• Miniature package optimized for RF power amplifier supply

Special Purpose Regulators Applications

• RF power amplifier biasing
• Portable wireless communication devices
• Base station power management
• Mobile handset power systems

Special Purpose Regulators Procurement Notes

Verify the specific suffix DRSN against the official datasheet to confirm tape-and-reel packaging specifications and quantity per reel. Ensure the order matches the exact temperature grade and pinout configuration required for your PCB layout. Cross-reference with Texas Instruments documentation as they acquired National Semiconductor's product line.

Special Purpose Regulators Selection Notes

Select this component when a high-frequency, low-profile solution is needed for RF PA supplies. The 6 MHz frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Ensure input voltage ranges align with the system battery or rail voltage. Check thermal performance requirements given the 750 mA output capability in a small package.

Special Purpose Regulators Part Context

This part belongs to the LM32xx series of miniature DC-DC converters from National Semiconductor. These parts are specifically engineered for RF applications where size and noise performance are critical. The series includes variants like LM3202 and LM3205, but the LM3241 offers higher current capacity and a fixed 6 MHz frequency.

Special Purpose Regulators Replacement Considerations

Direct replacements include LM3241TLE/NOPB and LM3241TLX/NOPB. Verify that the replacement variant maintains the same DRSN package style and electrical characteristics. Consider LM3205 if lower current is acceptable, though it operates at different frequencies.