LM2597HVM-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597HVM-3.3/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-down switching voltage regulator. It operates with an input voltage range of 4.5 V to 60 V and provides a fixed output voltage of 3.3 V. The device supports a maximum output current of 500 mA and utilizes a buck topology at a fixed switching frequency of 150 kHz. Designed for surface-mount applications, it is housed in an SOIC-8 package. The component ensures reliable performance across an operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic controller for high-efficiency step-down conversion
• Fixed internal switching frequency simplifies external component selection
• Built-in thermal shutdown and current limit protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Pre-regulation for downstream linear regulators
• Battery-powered equipment requiring efficient voltage stepping

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'M' indicates the SOIC-8 package variant distinct from other pinouts. Confirm the 'NOPB' designation ensures compliance with RoHS standards and absence of lead-based materials. Cross-reference the manufacturer datasheet to validate the fixed 3.3 V output specification against potential adjustable or other fixed voltage variants within the same series.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for converting higher bus voltages down to 3.3 V. The 500 mA output capability suits low-to-medium power loads. Ensure the application environment stays within the specified -40°C to +125°C temperature limits. Consider the 150 kHz frequency for balancing component size and efficiency requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2597HV series, designed for high-voltage input applications. It serves as a robust alternative to traditional linear regulators by minimizing heat dissipation during significant voltage drops. The SIMPLE SWITCHER architecture integrates the switch and control logic into a single IC, reducing board space and design complexity compared to discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2597HVM-ADJ/NOPB offers adjustable output but requires external feedback components.