LM3881MM/NOPB

Power Supply Controllers, Monitors Overview

The LM3881MM/NOPB is a simple power sequencer manufactured by Texas Instruments, designed for managing the startup and shutdown sequences of multiple voltage rails in electronic systems. It operates within a supply voltage range of 2.7V to 5.5V and draws a typical supply current of 80 µA. The device features adjustable time delays for sequencing outputs and is housed in an 8-VSSOP surface-mount package. It supports an operating temperature range from -40°C to +125°C, ensuring reliability in demanding environments.

Power Supply Controllers, Monitors Feature Summary

• Provides precise control over power-up and power-down sequences for multi-rail systems
• Features adjustable timing delays to accommodate various system requirements
• Operates with low supply current to minimize power consumption during standby

Power Supply Controllers, Monitors Applications

• Power sequence generation in portable electronics
• Voltage rail management in industrial control systems
• Startup sequencing for embedded computing platforms

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix (NOPB) indicates lead-free compliance and RoHS standards when sourcing. Confirm the package type matches the 8-VSSOP footprint required for the design. Ensure the supplier provides official datasheets to validate the electrical characteristics against the target application requirements.

Power Supply Controllers, Monitors Selection Notes

Select this component when a dedicated hardware solution for power sequencing is required without complex programming. Consider the adjustable delay feature if strict timing constraints exist between different voltage rails. Evaluate the 80 µA supply current against total system power budgets to ensure efficiency meets design goals.

Power Supply Controllers, Monitors Part Context

This part belongs to the LM3881 series of power sequencers from Texas Instruments. It serves as a supervisory circuit specifically engineered to simplify the design of power management systems by handling the chronological activation of voltages, reducing the need for external logic or microcontroller intervention for basic sequencing tasks.

Power Supply Controllers, Monitors Replacement Considerations

LM3881MME/NOPB is a documented equivalent offering similar functionality in a compatible package variant.