LM2593HVS-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2593HVS-ADJ/NOPB is a high-voltage step-down switching regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments. It operates with an input voltage range of 4.5 V to 60 V and provides an adjustable output voltage between 1.2 V and 57 V. The device delivers a maximum output current of 2 A at a fixed switching frequency of 150 kHz. Packaged in a TO-263-8 (D2PAK) surface-mount housing, it supports operation across a junction temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch rated for high-voltage buck conversion
• Fixed internal oscillator enables simplified external component requirements
• Built-in thermal shutdown protects against excessive heat conditions
• Onboard reference voltage ensures stable regulation performance

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load DC/DC conversion modules
• High-voltage battery-powered system regulation
• Industrial control power supply stages
• General-purpose step-down voltage regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'S' confirms the TO-263-8 package variant rather than standard TO-263-5. Confirm 'NOPB' indicates lead-free and RoHS compliance status. Ensure the ADJ designation matches the required adjustable output configuration. Cross-reference the manufacturer part number directly with official datasheets to validate pinout and electrical specifications before integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages exceed 40 V or require up to 60 V tolerance. Choose the adjustable version if precise output voltage setting via external resistors is necessary. Consider the TO-263-8 package for adequate thermal dissipation during continuous 2 A load operations. Verify that the 150 kHz switching frequency aligns with electromagnetic interference constraints and inductor sizing requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2593HV series, designed for high-input voltage applications compared to standard low-voltage regulators. It shares architectural similarities with the LM2590 and LM2594 families but offers higher current capability than the 500 mA variants. The SIMPLE SWITCHER branding denotes integrated controller and power switch functionality within a single IC.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2593HVS-5.0/NOPB serves as a fixed-output alternative within the same package and series.