LM2678S-3.3/NOPB National Semiconductor, LM2678S-3.3/NOPB Datasheet - Page 2

• 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

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Connection Diagrams and Ordering Information
Ordering Information for LLP Package
Output Voltage
ADJ
ADJ
3.3
3.3
5.0
5.0
12
12
See NSC Package Number TS7B
LM2678S-12 or LM2678S-ADJ
LM2678S-3.3, LM2678S-5.0,
LM2678SD-12
LM2678SDX-12
LM2678SD-3.3
LM2678SDX-3.3
LM2678SD-5.0
LM2678SDX-5.0
LM2678SD-ADJ
LM2678SDX-ADJ
TO-263 Package
Order Number
Top View
Order Information
See NS package Number SRC14A
10088601
S0003BB
S0003BB
S0003CB
S0003CB
S0003DB
S0003DB
S0003EB
S0003EB
Top View
LLP-14
Package Marking
2
See NSC Package Number TA07B
LM2678T-12 or LM2678T-ADJ
LM2678T-3.3, LM2678T-5.0,
250 Units on Tape and Reel
2500 Units on Tape and Reel
250 Units on Tape and Reel
2500 Units on Tape and Reel
250 Units on Tape and Reel
2500 Units on Tape and Reel
250 Units on Tape and Reel
2500 Units on Tape and Reel
10088641
TO-220 Package
Order Number
Top View
Supplied As
10088602