LM2599S-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2599S-3.3/NOPB is a SIMPLE SWITCHER step-down switching regulator from Texas Instruments, operating with an input voltage range of 4.5 V to 40 V and delivering a fixed 3.3 V output at up to 3 A. It functions as a monolithic integrated circuit designed for high-efficiency DC-DC conversion in surface-mount applications. The device utilizes a TO-263 package and operates at a switching frequency of 150 kHz, enabling the use of smaller external filter components. It includes internal frequency compensation and a fixed-frequency oscillator, requiring minimal external circuitry for stable regulation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 3 A power switch for direct load driving capability
• Features internal fixed-frequency oscillator and frequency compensation
• Provides fixed 3.3 V output voltage option within the series
• Supports surface mount installation via TO-263 package

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load DC/DC conversion modules
• Pre-regulators for linear regulators
• Efficient buck converters for embedded systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS adherence per manufacturer specifications. Confirm the package variant matches the required TO-263 footprint dimensions. Ensure the fixed 3.3 V output version aligns with the target circuit design requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required with up to 3 A load current. It is suitable for designs needing high efficiency and minimal external component count. Consider the 150 kHz switching frequency for thermal management and EMI constraints compared to higher frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2599 series of SIMPLE SWITCHER regulators, which are widely used for general-purpose DC-DC conversion. The series offers various fixed voltage outputs and adjustable versions, providing flexibility for different system voltage requirements while maintaining consistent performance characteristics across the family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2599S-3.3/NOPB is functionally equivalent to LM2599S-3.3. Verify pinout compatibility if substituting with other buck converter ICs from different manufacturers.