LM2596HVGDP-ADJ

The LM2596HV series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version. Available in a standard 5-lead TO-220 package and a 5-lead TO-263 surface mount package. External shutdown is included, featuring typically 30μA standby current. The output switch includes cycle-bycycle current limiting, as well as thermal shutdown, and protection from output short for full protection under fault conditions.

Applications

• Simple high-efficiency step-down (buck) regulator
• Efficient pre-regulator for linear regulators
• On-card switching regulators

Key features

• 3.3V, 5V, 12V and Adjustable output versions
• Adjustable version output voltage range, 1.23V to 57V
• ±4% max over line and load condition
• Available in TO-220, TO-263 and SOP-8PP
• Guaranteed 3A output load current
• Input voltage range up to 60V
• Requires only 4 external components
• Excellent line and load regulation specifications
• 150kHz fixed frequency internal oscillator
• Low power standby mode, ISTB typically 30uA
• High efficiency
• Thermal shutdown and current limit protection
• Output short protection by reduction of frequency by 3 times