LM2578AN/NOPB National Semiconductor, LM2578AN/NOPB Datasheet - Page 12

• Manufacturer Part Number: LM2578AN/NOPB
• Description: IC REG SIMPLE SWITCHER 8-DIP
• Manufacturer: National Semiconductor
• Type: Step-Down (Buck), Step-Up (Boost), Inverting, Flybackr

Specifications of LM2578AN/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Current - Output: 750mA
• Frequency - Switching: 20kHz
• Voltage - Input: 2 ~ 40 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• No. Of Outputs: 1
• Output Voltage: 1V
• Output Current: 750mA
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Msl: MSL 1 - Unlimited
• Input Voltage: 40V
• Input Voltage Primary Max: 40V
• Rohs Compliant: Yes
• Primary Input Voltage: 40V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Power - Output: -
• Other names: *LM2578AN; *LM2578AN/NOPB; LM2578AN

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Typical Applications
(Continued)
V
V
V
I
f
R1 = 40 kΩ
R2 = 10 kΩ
FIGURE 15. Buck or Step-Down Regulator
o
osc
in
o
ripple
= 350 mA
= 5V
= 15V
= 50 kHz
= 10 mV
12
R3 = 0.15Ω
C1 = 1820 pF
C2 = 220 µF
C3 = 20 pF
L1 = 470 µH
D1 = 1N5818
00871106