LM2776DBVR

Voltage Regulators - DC DC Switching Regulators Overview

The LM2776DBVR is a CMOS charge pump voltage converter manufactured by Texas Instruments. It converts positive input voltages ranging from 2.7 V to 5.5 V into corresponding negative output voltages. The device delivers an output current of up to 200 mA with a switching frequency of 2 MHz. It operates within a temperature range of -40 °C to +85 °C and features a quiescent current of 1 µA in shutdown mode. The component is housed in a compact SOT-23-6 surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Converts positive supply rails to equal negative voltages without requiring external inductors
• Operates in low-current pulse frequency modulation (PFM) mode for high efficiency under most load conditions
• Integrates thermal protection and current limiting for enhanced system reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered systems requiring efficient negative power supplies
• Portable electronic devices where size and cost constraints prohibit inductor-based converters
• Applications necessitating low electromagnetic interference (EMI)

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'DBVR' corresponds to the SOT-23-6 package and tape-and-reel quantity when ordering. Confirm that the required operating temperature range aligns with the industrial specification limits. Ensure input voltage levels remain strictly within the 2.7 V to 5.5 V window to maintain proper regulation and prevent device malfunction or damage.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact, inductor-less solution is needed to generate a negative rail from a single positive battery source. It is suitable for designs prioritizing small footprint and moderate output current requirements. Consider alternative parts if higher output currents or different voltage polarities are required.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2776 series of switched capacitor inverters. It is designed as a space-saving alternative to traditional inductive DC-DC converters. The series focuses on providing efficient voltage inversion for portable electronics while minimizing bill-of-materials complexity through integrated circuit design.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for pin-compatible alternatives within the same family, such as the LM2776DT variant which utilizes a different package configuration. Verify functional equivalence regarding output current capabilities and switching frequencies before substitution.