LP2966IMM-2828

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LP2966IMM-2828/NOPB is a dual-channel ultra low-dropout linear voltage regulator manufactured by National Semiconductor. It provides two independent positive fixed output voltages of 2.8V each, with a maximum continuous current of 150mA per channel. The device operates from an input voltage range up to 7V and features a typical quiescent supply current of 600 µA. It is housed in an 8-pin VSSOP surface-mount package and supports junction temperatures ranging from -40°C to 125°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Dual output configuration providing independent regulation for two separate circuits
• Ultra low-dropout architecture enabling efficient operation with minimal input-to-output voltage differential
• Low quiescent current consumption suitable for battery-powered applications
• Fixed output voltage options eliminating the need for external feedback resistors

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Portable electronic devices requiring multiple stable voltage rails
• Battery-operated systems needing efficient power management
• Embedded circuits requiring isolated or independent voltage supplies
• Communication modules with strict power consumption constraints

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the manufacturer origin, as Texas Instruments acquired National Semiconductor's analog business. Confirm the suffix /NOPB indicates lead-free compliance. Ensure the package type matches the design footprint, specifically the 8-VSSOP variant. Check for updated datasheets reflecting TI specifications rather than legacy National Semiconductor documents.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when dual independent regulated outputs are required in a compact form factor. The fixed 2.8V outputs suit logic levels and RF circuits. Consider the 150mA limit per channel against peak load demands. The wide operating temperature range ensures reliability in industrial environments. Verify input voltage stability remains within the specified maximum limit during all operating conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the LP2966 series of dual ultra low-dropout regulators. Variants such as LP2966IMM-3333 or LP2966IMM-1833 offer different fixed output combinations. The series is characterized by high PSRR and low noise, making it suitable for sensitive analog and digital loads. The IMM suffix denotes the specific thermal and mechanical characteristics of the VSSOP package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct substitutes include other LP2966 variants with matching output voltages, such as LP2966IMM-3333/NOPB for dual 3.3V outputs. Cross-reference with Texas Instruments' current portfolio for equivalent dual LDOs if National Semiconductor branding is obsolete. Ensure pin compatibility and thermal performance match the original design requirements.