LM2678S-3.3/NOPB National Semiconductor, LM2678S-3.3/NOPB Datasheet - Page 6

• Manufacturer Part Number: LM2678S-3.3/NOPB
• Description: IC REG SW 3.3V 5A STP DN TO263-7
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2678S-3.3/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 5A
• Frequency - Switching: 260kHz
• Voltage - Input: 8 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: D²Pak, TO-263 (7 leads + tab)
• Current, Input Bias: 85 nA
• Current, Output: 5 A
• Current, Supply: 4.2 mA
• Frequency, Oscillator: 260 kHz
• Package Type: TO-263
• Regulator Type: Buck (Step-Down)
• Resistance, Thermal, Junction To Case: 2 °C/W
• Temperature, Operating, Range: -40 to +125 °C
• Voltage, Input: 8 to 40 V
• Voltage, Output: 3.3 V
• Primary Input Voltage: 12V
• No. Of Outputs: 1
• Output Voltage: 3.3V
• Output Current: 5A
• No. Of Pins: 7
• Operating Temperature Range: -40°C To +125°C
• Msl: MSL 3 - 168 Hours
• Current Rating: 5A
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device
• Other names: *LM2678S-3.3; LM2678S-3.3

Typical Performance Characteristics
Normalized
Line Regulation
Output Voltage
10088610
10088609
Efficiency vs Input Voltage
Efficiency vs I
LOAD
10088611
10088612
Switch Current Limit
Operating Quiescent Current
10088604
10088605
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