LM2733XMF/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2733XMF/NOPB is a boost converter from Texas Instruments featuring a 40V internal DMOS FET switch. It operates with an input voltage range of 2.7 V to 14 V and delivers up to 1.5 A output current. The device supports selectable switching frequencies of 0.6 MHz or 1.6 MHz, enabling optimized inductor size and efficiency. It provides an adjustable output voltage range from 3 V to 40 V. The component includes a shutdown feature and functions within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-voltage 40V DMOS FET switch for efficient step-up conversion
• Offers selectable switching frequencies to balance performance and component size
• Supports wide input voltage ranges suitable for single-cell battery applications
• Includes a dedicated shutdown pin for power management control

Voltage Regulators - DC DC Switching Regulators Applications

• Portable devices requiring voltage boosting from single-cell lithium-ion batteries
• Cellular phones and personal digital assistants (PDAs)
• GPS navigation systems
• MP3 players and portable media devices
• General-purpose low-power DC-DC conversion in space-constrained designs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'XMF' corresponds to the SOT-23-5 package and tape-and-reel configuration required for your assembly process. Confirm that the 'NOPB' designation ensures lead-free compliance and RoHS adherence as per the manufacturer's latest documentation. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for boosting low input voltages to higher levels. The choice between 0.6 MHz and 1.6 MHz should depend on available board space for passive components versus efficiency requirements at specific load currents. Ensure the external inductor selection aligns with the chosen frequency to prevent saturation and maintain desired ripple characteristics.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2733 family of boost converters designed by Texas Instruments. It is manufactured using processes compatible with surface-mount technology standards. The device is part of a broader portfolio of power management integrated circuits aimed at mobile and handheld electronics where size and power efficiency are critical constraints.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct substitutes within the LM2733 series, such as variants with different thermal ratings or packaging options. Verify functional equivalence regarding pinout, switching frequency options, and maximum switch current before substitution.