Product Summary

The LM2599S-ADJ is a 3A Step-Down Voltage Regulator. It 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 LM2599S-ADJ is available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version. The applications of the LM2599S-ADJ are Simple high-efficiency step-down (buck) regulator, Efficient pre-regulator for linear regulators, On-card switching regulators, Positive to Negative converter.

Parametrics

LM2599S-ADJ absolute maximum ratings: (1)Maximum Supply Voltage (VIN): 45V; (2)SD /SS Pin Input Voltage: 6V; (3)Delay Pin Voltage: 1.5V; (4)Flag Pin Voltage: -0.3 ≤ V ≤45V; (5)Feedback Pin Voltage: -0.3 ≤ V ≤+25V; (6)Output Voltage to Ground(Steady State): -1V; (7)Power Dissipation: Internally limited; (8)Storage Temperature Range: -65 to +150℃.

Features

LM2599S-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)Guaranteed 3A output current; (4)Available in 7-pin TO-220 and TO-263 (surface mount) Package; (5)Input voltage range up to 40V; (6)150 kHz fixed frequency internal oscillator; (7)Shutdown/Soft-start; (8)Out of regulation error flag; (9)Error output delay; (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

LM2599S-ADJ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM2599S-ADJ
LM2599S-ADJ
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-180: $2.52
180-270: $2.27
270-540: $2.04
540-1035: $1.72
LM2599S-ADJ/NOPB
LM2599S-ADJ/NOPB
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-1: $3.44
1-25: $2.77
25-100: $2.52
100-250: $2.27