LM2574M-3.3/NOPB National Semiconductor, LM2574M-3.3/NOPB Datasheet - Page 13

• Manufacturer Part Number: LM2574M-3.3/NOPB
• Description: IC REG SIMPLE SWITCHER 14-SOIC
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2574M-3.3/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 500mA
• Frequency - Switching: 52kHz
• Voltage - Input: 4 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (7.5mm Width)
• Power - Output: 750mW
• Primary Input Voltage: 12V
• No. Of Outputs: 1
• Output Voltage: 3.3V
• Output Current: 500mA
• No. Of Pins: 14
• Operating Temperature Range: -40°C To +125°C
• Msl: MSL 3 - 168 Hours
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM2574M-3.3; *LM2574M-3.3/NOPB; LM2574M-3.3

LM2574 Series Buck Regulator Design Procedure
INDUCTOR VALUE SELECTION GUIDES (For Continuous Mode Operation)
FIGURE 4. LM2574HV-3.3 Inductor Selection Guide
FIGURE 5. LM2574HV-5.0 Inductor Selection Guide
DS011394-26
DS011394-13
13
FIGURE 6. LM2574HV-12 Inductor Selection Guide
FIGURE 7. LM2574HV-15 Inductor Selection Guide
(Continued)
DS011394-14
DS011394-15
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