LM2679S-12 National Semiconductor, LM2679S-12 Datasheet - Page 7

• Manufacturer Part Number: LM2679S-12
• Description: Voltage Regulator IC
• Manufacturer: National Semiconductor

Specifications of LM2679S-12

• Output Current: 5A
• Output Voltage: 12V
• No. Of Outputs: 1
• No. Of Pins: 7
• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Mounting Type: Through Hole
• Package / Case: 7 Lead
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

A: V
B: Inductor Current, 2 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
SW
Pin Voltage, 10 V/div.
L = 10 μH, C
Continuous Mode Switching Waveforms
V
Horizontal Time Base: 1 μs/div
IN
= 20V, V
Switching Frequency
OUT
= 400 μF, C
OUT
= 5V, I
OUT
LOAD
ESR = 13 mΩ
= 5A
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A: V
B: Inductor Current, 1 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
SW
Pin Voltage, 10 V/div.
Discontinuous Mode Switching Waveforms
L = 10 μH, C
V
IN
Horizontal Time Base: 1 μs//iv
= 20V, V
Feedback Pin Bias Current
OUT
OUT
= 400 μF, C
= 5V, I
LOAD
OUT
ESR = 13 mΩ
= 500 mA
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