Product Summary

The LM3478MM is a High Efficiency Low-Side N-Channel Controller for Switching Regulator. It is suitable for use in topologies requiring a low side MOSFET, such as boost, flyback, SEPIC, etc.

Parametrics

Absolute maximum ratings: (1)Input Voltage:45V; (2)FB Pin Voltage:-0.4V < VFB < 7V; (3)FA/SD Pin Voltage:-0.4V < VFA/SD < 7V; (4)Peak Driver Output Current (<10μs):1.0A; (5)Power Dissipation:Internally Limited; (6)Storage Temperature Range:-65℃ to +150℃; (7)Junction Temperature:+150℃.

Features

Features: (1)8-lead Mini-SO8 (MSOP-8) package; (2)Internal push-pull driver with 1A peak current capability; (3)Current limit and thermal shutdown; (4)Frequency compensation optimized with a capacitor and a resistor; (5)Internal softstart; (6)Current Mode Operation; (7)Undervoltage Lockout with hysteresis.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM3478MM
LM3478MM
National Semiconductor (TI)
DC/DC Switching Controllers
Data Sheet
0-1000: $0.68
1000-5000: $0.66
5000-10000: $0.64
LM3478MM/NOPB
LM3478MM/NOPB
National Semiconductor (TI)
DC/DC Switching Controllers HI EFF LOW-SIDE N CH CONTROLLER
Data Sheet
0-1: $1.57
1-25: $1.27
25-100: $1.14
100-250: $1.01
LM3478MMX/NOPB
LM3478MMX/NOPB
National Semiconductor (TI)
DC/DC Switching Controllers
Data Sheet
0-1: $1.57
1-25: $1.27
25-100: $1.14
100-250: $1.01
LM3478MMX
LM3478MMX
National Semiconductor (TI)
DC/DC Switching Controllers
Data Sheet
0-3500: $0.68
3500-7000: $0.65
7000-10500: $0.63