LP3470IM5X-4.63/NOPB

Supervisors Overview

The LP3470IM5X-4.63/NOPB is a voltage supervisory circuit manufactured by Texas Instruments, designed for monitoring single-input power supplies. It operates within a supply voltage range up to 5.5 V and features a fixed reset threshold of 4.63 V with 1% accuracy. The device provides an active-low, open-drain output and includes a programmable reset delay time of 2 ms. It is housed in a compact SOT-23-5 package and supports surface-mount installation. The component functions without manual reset or watchdog timer capabilities and lacks battery backup switching. It is rated for operation between -40°C and 85°C.

Supervisors Feature Summary

• Provides active-low reset signal via open-drain output for reliable logic interfacing
• Features high-precision 1% reset threshold tolerance for accurate voltage supervision
• Includes programmable reset delay to prevent false triggering during power-up transients
• Utilizes compact SOT-23-5 packaging for space-constrained surface-mount designs

Supervisors Applications

• Power-on reset generation for microprocessors and digital logic circuits
• Voltage supervision for battery-powered portable electronic devices
• Monitoring of regulated power rails in embedded systems
• Reset management for field-programmable gate arrays (FPGAs)

Supervisors Procurement Notes

Verify the exact suffix configuration when ordering, as variations such as 'M5' versus 'IM5' denote specific temperature ranges and package variants. Confirm RoHS compliance status through official datasheets, as legacy versions may differ. Check for obsolescence notices, as some LP3470 variants are marked as not recommended for new designs. Ensure the selected part number matches the required threshold voltage precision and operating temperature range for your specific application environment.

Supervisors Selection Notes

Select this component when a fixed 4.63 V threshold is required for single-channel power monitoring. The SOT-23-5 package is suitable for applications prioritizing minimal board space. Consider the 2 ms reset delay duration to ensure compatibility with system startup timing requirements. Verify that the active-low open-drain output aligns with the input requirements of the downstream logic components. Evaluate thermal performance within the specified -40°C to 85°C operating range for environmental suitability.

Supervisors Part Context

The LP3470 series consists of tiny power-on reset circuits designed for low-voltage applications. This specific model belongs to the family of voltage supervisors offering precise threshold detection. The 'IM5X' designation indicates a specific industrial temperature grade and tape-and-reel packaging format. These devices are commonly used in consumer electronics and industrial control systems where reliable power sequencing is critical for stable operation.

Supervisors Replacement Considerations

Direct substitutes include other LP3470 variants with matching thresholds, such as LP3470IM5-4.63/NOPB. Cross-reference pinouts and electrical characteristics before substitution. Verify that alternative parts meet the same SOT-23-5 footprint and voltage specifications.