LM7705MME/NOPB

Product Overview

The Texas Instruments LM7705MME/NOPB is a fixed-output step-down charge pump switching regulator that generates a negative -0.23V output from a 3V to 5.25V input. It provides one output at 26mA and operates at a 92kHz switching frequency. The surface-mount 8-VSSOP package supports a junction temperature range of -40°C to 125°C and is used in compact power-management designs requiring a small negative rail.

Key Features

• Step-down charge pump topology with fixed negative -0.23V output
• Input voltage range of 3V to 5.25V and 26mA output current
• 92kHz switching frequency with non-synchronous rectifier
• Surface-mount 8-VSSOP package, 8-TSSOP/8-MSOP, 3.00mm width
• Operating junction temperature range of -40°C to 125°C

Applications

• Generating a small negative bias rail on mixed-signal boards
• Supplying auxiliary negative voltage to sensor or amplifier reference networks
• Providing a compact negative output in embedded control assemblies

Design & Procurement Notes

The fixed -0.23V output limits configuration flexibility, so the load must be compatible with both the voltage and the 26mA output current. The 3V to 5.25V input range and 125°C maximum junction temperature should be checked against the system power and thermal environment. The part number identifies the 8-VSSOP package variant, and the 3.00mm width should be matched to the board footprint. Layout should account for the 92kHz charge pump switching regulator, particularly when routing the negative output and input supply.