LM2574N-3.3G ON Semiconductor, LM2574N-3.3G Datasheet - Page 7

• Manufacturer Part Number: LM2574N-3.3G
• Description: IC REG SW 0.5A 3.3V OUTPUT 8-DIP
• Manufacturer: ON Semiconductor
• Type: Step-Down (Buck)r

Specifications of LM2574N-3.3G

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 500mA
• Frequency - Switching: 52kHz
• Voltage - Input: 4.75 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Output Voltage: 3.3 V
• Output Current: 0.5 A
• Input Voltage: 4.75 V to 40 V
• Switching Frequency: 52 KHz
• Operating Temperature Range: - 40 C to + 125 C
• Mounting Style: Through Hole
• Duty Cycle (max): 98 %
• Current, Input Bias: 25 nA
• Current, Output: 0.5 A
• Current, Supply: 5 mA
• Frequency, Oscillator: 52 kHz
• Package Type: PDIP-8
• Regulator Type: Switching
• Resistance, Thermal, Junction To Case: 5 °C/W
• Temperature, Operating, Range: -40 to +125 °C
• Voltage, Output: 3.3 V
• Voltage, Supply: 40 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: LM2574N-3.3G; LM2574N-3.3GOS

B
A
Continuous Mode Operation, L = 330 mH, C
500 mA
50 mV
Figure 14. 500 mA Load Transient Response for
AC
0
A: Output Voltage, 50 mV/DIV, AC Coupled
B: 100 mA to 500 mA Load Pulse
TYPICAL PERFORMANCE CHARACTERISTICS
200 ms/DIV
out
LM2574, NCV2574
= 300 mF
http://onsemi.com
7
A
B
Discontinuous Mode Operation, L = 68 mH, C
200 mA
100 mA
50 mV
Figure 15. 250 mA Load Transient Response for
AC
0
(Circuit of Figure 16) (continued)
A: Output Voltage, 50 mV/DIV, AC Coupled
B: 50 mA to 250 mA Load Pulse
200 ms/DIV
out
= 470 mF