LM3524DN/NOPB National Semiconductor, LM3524DN/NOPB Datasheet - Page 19

• Manufacturer Part Number: LM3524DN/NOPB
• Description: IC REGULATOR PWM SWITCHER 16-DIP
• Manufacturer: National Semiconductor
• Type: Step-Down (Buck), Step-Up (Boost), Flybackr

Specifications of LM3524DN/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5V
• Current - Output: 200mA
• Frequency - Switching: 550kHz
• Voltage - Input: 8 ~ 40 V
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Power - Output: 1W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM3524DN; LM3524DN

865025
L1 = > 25 turns No. 24 wire on Ferroxcube No. K300502 Toroid core.
FIGURE 20. 15V, 0.5A Step-Up Switching Regulator
865026
FIGURE 21. Replacing R3/R4 Divider in Figure 20 with Reference Circuit Improves Line Regulation
865027
FIGURE 22. Polarity Inverter Provides Auxiliary −15V Unregulated Output from Circuit of Figure 20
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