LM2574MX-12 National Semiconductor, LM2574MX-12 Datasheet - Page 7

• Manufacturer Part Number: LM2574MX-12
• Description: Conv DC-DC Single Inv/Step Down 4V to 40V 14-Pin SOIC W T/R
• Manufacturer: National Semiconductor
• Type: Inverting|Step Downr

Specifications of LM2574MX-12

• Package: 14SOIC W
• Number Of Outputs: 1
• Minimum Input Voltage: 4 V
• Maximum Input Voltage: 40 V
• Switching Frequency: 58 KHz
• Operating Supply Voltage: 40(Max) V
• Maximum Output Current: 0.5 A
• Output Type: Fixed
• Output Voltage: 12 V
• Switching Regulator: Yes
• Efficiency: 88(Typ) %
• Operating Temperature: -40 to 125 °C

Typical Performance Characteristics
Current Limit
Oscillator Frequency
Minimum Operating Voltage
DS011394-30
DS011394-33
DS011394-36
Supply Current
Switch Saturation
Voltage
Supply Current
vs Duty Cycle
(Circuit of Figure 2 ) (Continued)
7
DS011394-31
DS011394-34
DS011394-37
Standby
Quiescent Current
Efficiency
Feedback Voltage
vs Duty Cycle
www.national.com
DS011394-35
DS011394-32
DS011394-38