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Home Product LM2599SX-3.3/NOPB TI SIMPLESWITCHER 3.3V 3A Step-Down DC-DC Converter
LM2599SX-3.3/NOPB

LM2599SX-3.3/NOPB TI SIMPLESWITCHER 3.3V 3A Step-Down DC-DC Converter

LM2599SX-3.3 Converter
3.3V Buck Regulator
LM2599 Switching IC
LM2599SX-3.3/NOPB
LM2599SX-3.3 Converter: 3.3V Buck Regulator switching IC delivering 3A output with 4.5-40V input. High-efficiency step-down voltage conversion for power modules, industrial systems, and compact electronics.
Categories:Electronic components
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Product Description

The LM2599SX-3.3/NOPB is a 3.3V Buck Regulator, part of the LM2599 Switching IC series, designed for high-efficiency voltage conversion. It accepts a wide input range of 4.5V to 40V, delivering a fixed 3.3V output at up to 3A, ideal for industrial automation, automotive systems, and power supply modules. This LM2599SX-3.3 Converter integrates thermal shutdown, current limiting, and a fixed-frequency oscillator (150 kHz), ensuring robust performance across an operating temperature range of -40°C to +125°C. Its compact design simplifies integration with sensors, communication interfaces (e.g., RS-485), or microcontroller units. While lacking adjustable output, its efficiency (up to 88%) and low standby current suit battery-powered applications. Compatible with systems utilizing battery capacities up to 40V, it supports short-distance PCB-based power distribution but lacks native screen or wireless connectivity. Its primary drawback is fixed output voltage, limiting flexibility in dynamic applications.
Parameter Specification
Device Type LM2599SX-3.3 Converter (Step-Down)
Output Voltage 3.3V Fixed
Input Voltage Range 4.5V to 40V
Output Current 3A Continuous
Switching Frequency 150 kHz
Efficiency 85% Typical
Regulation Type PWM Switching IC
Protection Features Thermal Shutdown, Current Limit
Package TO-263-5 (D2PAK)
Operating Temperature -40°C to +125°C
question:Do you offer technical selection services?
answer:Yes, we provide expert technical selection guidance tailored to your requirements.
question:Can you supply upgraded or alternative models?
answer:Yes, we offer upgraded models and alternative solutions based on product availability.
question:What is the warranty policy?
answer:Our standard warranty covers manufacturing defects for 1-2 years, varying by product specifications.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Do you offer technical selection services?
answer:Yes, we provide expert technical selection guidance tailored to your requirements.
question:Can you supply upgraded or alternative models?
answer:Yes, we offer upgraded models and alternative solutions based on product availability.
question:What is the warranty policy?
answer:Our standard warranty covers manufacturing defects for 1-2 years, varying by product specifications.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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