LM2776DBVR - Texas Instruments

Manufacturer Part Number

LM2776DBVR

Manufacturer

Texas Instruments

Introduction

The LM2776DBVR is a charge pump-based DC-DC converter used for generating a negative voltage from a positive input voltage, suitable for portable devices and other applications requiring a small, regulated, negative voltage rail.

Product Features and Performance

Ratiometric output configuration

Fixed output type with the output being the negative of the input voltage

200mA output current capacity

Fast switching frequency of 2MHz

Operates across a wide input voltage range from 2.7V to 5.5V

Suitable for surface mount technology with SOT-23-6 package

Ensures a low noise operation

Product Advantages

Does not require an inductor for operation

Small package size is ideal for space-constrained applications

High switching frequency minimizes the size of external components

Provides a simple and efficient solution for generating a negative voltage rail

Key Technical Parameters

Output Voltage: -Vin (negative of the input voltage)

Max Output Current: 200mA

Switching Frequency: 2MHz

Voltage - Input (Min): 2.7V

Voltage - Input (Max): 5.5V

Operating Temperature range: -40°C to 85°C

Quality and Safety Features

Built for reliability and consistent performance within specified operating temperatures

Designed for commercial-industrial standard applications

Compatibility

Compatible with other components requiring an integrated negative voltage source

Application Areas

Portable electronics

Battery-powered devices

LCD bias supplies

Data acquisition systems

Product Lifecycle

Active status, not near discontinuation

Availability of replacements or upgrades should be checked with Texas Instruments

Several Key Reasons to Choose This Product

High efficiency for battery-operated devices

Small form factor suitable for compact electronic assemblies

No need for Schottky diodes or inductors, simplifying design and reducing BOM cost

Low noise output which is essential for sensitive analog circuitry

Robust performance in a wide temperature range

Easy to implement with minimal external components

Supported by Texas Instruments' design resources and technical assistance