Product Summary

The LM2596S-ADJ is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation. The LM2596S-ADJ is available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version. The applications of the LM2596S-ADJ include Simple high-efficiency step-down (buck) regulator, On-card switching regulators and Positive to negative converter.

Parametrics

LM2596S-ADJ absolute maximum ratings: (1)Maximum Supply Voltage: 45V; (2)ON /OFF Pin Input Voltage: -0.3 ≤ V ≤ +25V; (3)Feedback Pin Voltage: -0.3 ≤ V ≤+25V; (4)Output Voltage to Ground (Steady State): -1V; (5)Power Dissipation: Internally limited; (6)Storage Temperature Range: -65 to +150℃; (7)ESD Susceptibility Human Body Model: 2 kV; (8)Lead Temperature: +260℃; (9)Maximum Junction Temperature: +150℃.

Features

LM2596S-ADJ features: (1)3.3V, 5V, 12V, and adjustable output versions; (2)Adjustable version output voltage range, 1.2V to 37V±4% max over line and load conditions; (3)Available in TO-220 and TO-263 packages; (4)Guaranteed 3A output load current; (5)Input voltage range up to 40V; (6)Requires only 4 external components; (7)Excellent line and load regulation specifications; (8)150 kHz fixed frequency internal oscillator; (9)TTL shutdown capability; (10)Low power standby mode, IQ typically 80 μA; (11)High efficiency; (12)Uses readily available standard inductors; (13)Thermal shutdown and current limit protection.

Diagrams

LM2596S-ADJ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM2596S-ADJ
LM2596S-ADJ
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-45: $2.50
45-135: $2.27
135-270: $2.05
270-540: $1.84
LM2596S-ADJ/NOPB
LM2596S-ADJ/NOPB
National Semiconductor (TI)
Switching Converters, Regulators & Controllers 150 KHZ 3A STEP-DOWN VLTG REG
Data Sheet
0-1: $3.11
1-25: $2.50
25-100: $2.27
100-250: $2.05