LM2735XSD/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2735XSD/NOPB is a space-efficient boost and SEPIC DC-DC regulator manufactured by Texas Instruments. It operates with a fixed switching frequency of 1.6 MHz or an adjustable frequency down to 520 kHz. The device supports an input voltage range from 2.7 V to 5.5 V and delivers an output voltage between 3 V and 24 V. It provides an output current of 2.1 A and features a WSON-6 package. The component functions within a temperature range of -40°C to +125°C and draws a quiescent current of 7 mA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports both boost and SEPIC topologies for flexible power conversion
• Integrates a high-efficiency internal switch for compact design
• Offers selectable switching frequencies to optimize external component size

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment
• Cellular phones and personal digital assistants
• General step-up voltage regulation in space-constrained designs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation, as National Semiconductor was acquired by Texas Instruments; official documentation now lists Texas Instruments. Confirm the specific suffix 'X' indicates the 1.6 MHz fixed frequency variant rather than the adjustable version. Ensure the WSON-6 package matches the target PCB footprint requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for boosting low input voltages to higher levels. The fixed 1.6 MHz frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Consider the 2.1 A output capability against the load requirements and ensure the thermal performance of the WSON-6 package suits the application environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2735 family of switching regulators designed for high-density applications. The 'X' suffix typically denotes the fixed 1.6 MHz frequency option, distinguishing it from variants with different frequency settings. The NOPB suffix indicates lead-free construction compliant with RoHS standards.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2735XSDX/NOPB: Verified equivalent with identical electrical specifications and WSON-6 packaging.