LM2705MF-ADJ/NOPB

Overview

The LM2705MF-ADJ/NOPB is a micropower step-up DC/DC converter manufactured by Texas Instruments. It operates with an input voltage range of 2.2 V to 7 V and provides an adjustable output voltage up to 20 V. The device features a peak current limit of 150 mA and utilizes a 0.7-Ω internal switch. It is housed in a 5-pin SOT-23 (DBV) package. The component supports operation temperatures from -40°C to +125°C and includes input undervoltage lockout and a shutdown mode with 0.01-μA current consumption.

Feature Summary

• Micropower step-up DC/DC converter topology
• Adjustable output voltage capability up to 20 V
• Integrated input undervoltage lockout protection
• Ultra-low current consumption in shutdown mode

Applications

• LCD driver power supplies
• Portable battery-powered devices requiring high efficiency
• Systems needing adjustable boost conversion from low input voltages

Procurement Notes

Verify the complete part number including the suffix /NOPB to ensure lead-free compliance and specific packaging configuration. Confirm the DBV package variant matches your PCB footprint requirements. Cross-reference the manufacturer datasheet for thermal performance data under your specific load conditions. Ensure input voltage ranges align with your source power supply specifications before integration.

Selection Notes

Select this component when designing circuits that require adjustable output voltages exceeding the input range from a single cell or low-voltage source. It is suitable for applications prioritizing low quiescent current and compact size due to the small SOT-23 package. Consider the 150 mA peak current limit when sizing external components for your maximum load requirements.

Part Context

This device belongs to the LM2705 family of micropower step-up converters designed for portable electronics. It integrates a high-efficiency switch and control circuitry into a minimal footprint. The family targets applications where space constraints and battery life are critical design parameters, offering a solution for boosting low input voltages to higher levels efficiently.

Replacement Considerations

Check for LM2705 variants with fixed output voltages if adjustment is not required. Verify pin compatibility with other SOT-23-5 boost converters from different manufacturers if sourcing alternatives. Ensure thermal characteristics match your enclosure constraints when substituting.