LM2733YMF/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2733YMF/NOPB is a Texas Instruments synchronous boost DC-DC converter IC in a SOT-23-5 package. It operates with an input voltage range of 2.7 V to 14 V and provides an adjustable output voltage from 3 V to 40 V. The device supports a maximum switch current of 1.5 A and features a fixed switching frequency of 600 kHz. Quiescent current is specified at 1.1 mA, and it functions within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification topology for improved efficiency
• Integrated power switch capable of handling high peak currents
• Fixed internal switching frequency simplifies external component selection
• Shutdown pin enables low-power standby operation

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable devices requiring voltage step-up
• White LED backlight drivers in mobile handsets
• General-purpose boost regulation for single-cell lithium-ion systems
• Industrial control modules needing isolated or boosted supply rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free compliance and RoHS adherence per Texas Instruments standards. Confirm the YMF variant corresponds to the SOT-23-5 surface-mount package. Ensure the ordering part number matches the specific tape-and-reel or cut-tape configuration required for your assembly process. Cross-reference the manufacturer date code against your inventory management requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for boosting single-cell battery voltages. The fixed 600 kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 1.5 A switch current limit against your peak load requirements. The SOT-23-5 package offers a small footprint suitable for space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2733 family of synchronous boost converters from Texas Instruments. It is designed specifically for applications requiring efficient voltage elevation from low input sources. The device integrates the power switch and control logic into a minimal external component count, distinguishing it from non-synchronous or externally switched counterparts.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for LM2733YMFX/NOPB as a potential alternative with identical electrical characteristics but potentially different packaging or reel specifications. Verify compatibility with existing PCB footprints before substitution.