LM2599T-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2599T-12/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-down voltage regulator. It operates with an input voltage range of 4.5 V to 40 V and provides a fixed 12 V output at up to 3 A load current. The device utilizes a 150 kHz switching frequency and features internal compensation for ease of design. Key protections include thermal shutdown and current limiting. It is housed in a TO-220-7 package suitable for through-hole mounting.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-frequency switch eliminates the need for external snubbers or complex compensation networks.
• Built-in thermal shutdown protection safeguards the device during overload conditions.
• Fixed 12 V output option simplifies circuit design by removing external feedback resistors.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power systems requiring efficient step-down conversion
• Pre-regulator circuits for linear regulators
• Battery-powered applications needing high efficiency

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status per manufacturer documentation. Confirm the 'T' designation indicates the TO-220-7 through-hole package variant rather than surface-mount options. Cross-reference the datasheet revision to ensure compatibility with current supply chain requirements and environmental regulations.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required with up to 3 A capacity. The through-hole TO-220-7 package is preferred for applications requiring robust thermal dissipation without additional heatsinking infrastructure. Ensure input voltages remain within the 4.5 V to 40 V range to maintain stable regulation and protect internal components.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2599 series of SIMPLE SWITCHER converters, designed for high-efficiency DC-DC step-down applications. It shares architectural similarities with the LM2596 but offers higher output current capability. The series is widely used in industrial and commercial power supplies where reliability and simplified design are prioritized over minimal footprint size.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2599T-12/NOPB is functionally equivalent to LM2599T-12. Direct substitutes may include LM2596T-12 if lower current (1 A) is acceptable, though pinout and thermal characteristics differ. Verify package compatibility and current ratings before substitution.