LM27761DSGR

Voltage Regulators - DC DC Switching Regulators Overview

The LM27761DSGR is a low-noise, regulated switched-capacitor voltage inverter manufactured by Texas Instruments. It operates within an input voltage range of 2.7 V to 5.5 V and provides an adjustable negative output voltage from -1.5 V to -5 V. The device delivers a maximum output current of 250 mA with a switching frequency of 2 MHz. It features a typical quiescent current of 370 µA and is housed in an 8-WSON (2x2 mm) package with an exposed pad. The component supports surface-mount installation and functions across a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Low-noise regulation for sensitive analog circuits
• Adjustable negative output voltage generation
• Compact 8-pin WSON footprint

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring negative supply rails
• Audio equipment power management
• Sensor biasing applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'DSGR' against the official Texas Instruments datasheet to confirm the tape-and-reel packaging configuration. Ensure the ordering part number matches the required quantity per reel as specified in the manufacturer's documentation. Cross-reference the RoHS compliance status and assembly site information provided in the latest product change notices before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact, inductorless solution is needed to generate a stable negative voltage from a single positive supply. The 2 MHz switching frequency allows for smaller external capacitors compared to lower-frequency alternatives. Consider the 250 mA current limit and the specific input voltage range requirements of the target system during circuit design.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM27761 series of switched-capacitor voltage inverters. It serves as a direct replacement for older inverting charge pump designs that require inductors, offering a simpler layout and reduced electromagnetic interference. The family focuses on providing regulated outputs with minimal ripple for noise-sensitive applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM27761DSGT is a compatible alternative within the same series, differing primarily in packaging format rather than electrical function. Verify pin compatibility and thermal performance when substituting between the DSGT and DSGR variants.