Product Summary

The LM5576 is an easy to use SIMPLE SWITCHER buck regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 - 75V, the LM5576 delivers 3A of continuous output current with an integrated 170mΩ N-Channel MOSFET.

Parametrics

Absolute maximum ratings: (1)VIN to GND: 76V; (2)BST to GND: 90V; (3)PRE to GND: 76V; (4)SW to GND (Steady State): -1.5V; (5)BST to VCC: 76V; (6)SD, VCC to GND: 14V; (7)BST to SW: 14V; (8)OUT to GND: Limited to Vin; (9)SYNC, SS, FB, RAMP to GND: 7V; (10)ESD Rating Human Body Model: 2kV; (11)Storage Temperature Range: -65℃ to +150℃.

Features

Features: (1)Integrated 75V, 170mΩ N-channel MOSFET; (2)Ultra-wide input voltage range from 6V to 75V; (3)Adjustable output voltage as low as 1.225V; (4)1.5% feedback reference accuracy; (5)Operating frequency adjustable between 50kHz and 500kHz with single resistor; (6)Master or slave frequency synchronization; (7)Adjustable soft-start; (8)Emulated current mode control architecture; (9)Wide bandwidth error amplifier; (10)Built-in protection.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM5576BLDT/NOPB
LM5576BLDT/NOPB
National Semiconductor (TI)
Power Management IC Development Tools LM5576 BUILD IT BOARD
Data Sheet
0-1: $10.50
LM5576MH
LM5576MH
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-146: $3.06
146-292: $2.81
292-511: $2.57
511-1022: $2.15
LM5576MH/NOPB
LM5576MH/NOPB
National Semiconductor (TI)
Switching Converters, Regulators & Controllers 75V,3A STEP-DOWN SWITCHING REG
Data Sheet
0-1: $4.14
1-25: $3.40
25-100: $3.06
100-250: $2.81
LM5576MHX/NOPB
LM5576MHX/NOPB
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-1: $4.14
1-25: $3.40
25-100: $3.06
100-250: $2.81
LM5576Q0MH/NOPB
LM5576Q0MH/NOPB
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-1: $5.23
1-25: $4.29
25-100: $3.87
100-250: $3.56
LM5576QMHX/NOPB
LM5576QMHX/NOPB
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-1915: $2.47
1915-2500: $2.47
LM5576QMH/NOPB
LM5576QMH/NOPB
National Semiconductor (TI)
Switching Converters, Regulators & Controllers 75V, 3A Step-Down Switching Reg
Data Sheet
0-1: $4.75
1-25: $3.90
25-100: $3.52
100-250: $3.23
LM5576Q0MHX/NOPB
LM5576Q0MHX/NOPB
National Semiconductor (TI)
Switching Converters, Regulators & Controllers
Data Sheet
0-1875: $2.72
1875-2500: $2.72