LM2574HVN-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574HVN-12/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, designed for high-voltage input applications. It operates with an input voltage range of 4.5 V to 60 V and provides a fixed 12 V output at up to 500 mA. The device integrates a 1-A internal power switch and utilizes a buck topology with a typical switching frequency of 150 kHz. It is housed in an 8-pin PDIP package for through-hole mounting. Key electrical parameters include a maximum quiescent current of 5 mA and an operating temperature range from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 1-A internal power switch for efficient step-down conversion
• Supports wide input voltage ranges suitable for high-voltage designs
• Includes built-in thermal shutdown and current limit protection
• Requires minimal external components for standard regulation

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• High-voltage battery-to-low-voltage conversion
• Pre-regulation stages for downstream linear regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'N' confirms the PDIP-8 through-hole package variant. Confirm 'NOPB' indicates lead-free and RoHS compliance status. Ensure the 'HV' designation matches the required 60 V input capability rather than the standard 40 V version. Cross-reference the manufacturer part number against official datasheets to validate pinout and thermal characteristics.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required from inputs up to 60 V. The through-hole PDIP-8 package is suitable for prototyping or applications requiring mechanical robustness. Consider the 150 kHz switching frequency for inductor sizing and efficiency trade-offs relative to lower-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2574HV family of SIMPLE SWITCHER regulators. It shares functional similarities with the LM2574 series but supports higher input voltages. The 'HVN' suffix specifically denotes the high-voltage input capability combined with the through-hole PDIP packaging format.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2574MX-12/NOPB (SOIC-14 surface mount equivalent)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2574HVN-12/NOPB?

The maximum input voltage is 60 V.

Does this regulator support shutdown mode?

Yes, the device includes a shutdown feature that reduces quiescent current significantly.