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LM2678SD-3.3 Fiches technique(PDF) 3 Page - Texas Instruments |
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LM2678SD-3.3 Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 35 page LM2678 www.ti.com SNVS029I – MARCH 2000 – REVISED APRIL 2013 Operating Ratings Supply Voltage 8V to 40V Junction Temperature Range (TJ) −40°C to 125°C Electrical Characteristics LM2678-3.3 Limits appearing in bold type face apply over the entire junction temperature range of operation, −40°C to 125°C. Specifications appearing in normal type apply for TA = TJ = 25°C. Parameter Test Conditions Typ(1) Min(2) Max(2) Units VOUT Output Voltage VIN = 8V to 40V, 100mA ≤ IOUT ≤ 5A 3.3 3.234/3.201 3.366/3.399 V η Efficiency VIN = 12V, ILOAD = 5A 82 % (1) Typical values are determined with TA = TJ = 25°C and represent the most likely norm. (2) All limits are ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are 100% tested during production with TA = TJ = 25°C. All limits at temperature extremes are ensured via correlation using standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). LM2678-5.0 Parameter Test Conditions Typ(1) Min(2) Max(2) Units VOUT Output Voltage VIN = 8V to 40V, 100mA ≤ IOUT ≤ 5A 5.0 4.900/4.850 5.100/5.150 V η Efficiency VIN = 12V, ILOAD = 5A 84 % (1) Typical values are determined with TA = TJ = 25°C and represent the most likely norm. (2) All limits are ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are 100% tested during production with TA = TJ = 25°C. All limits at temperature extremes are ensured via correlation using standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). LM2678-12 Parameter Test Conditions Typ(1) Min(2) Max(2) Units VOUT Output Voltage VIN = 15V to 40V, 100mA ≤ IOUT ≤ 5A 12 11.76/11.64 12.24/12.36 V η Efficiency VIN = 24V, ILOAD = 5A 92 % (1) Typical values are determined with TA = TJ = 25°C and represent the most likely norm. (2) All limits are ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are 100% tested during production with TA = TJ = 25°C. All limits at temperature extremes are ensured via correlation using standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). LM2678-ADJ Parameter Test Conditions Typ(1) Min(2) Max(2) Units VFB Feedback Voltage VIN = 8V to 40V, 100mA ≤ IOUT ≤ 5A 1.21 1.186/1.174 1.234/1.246 V VOUT Programmed for 5V η Efficiency VIN = 12V, ILOAD = 5A 84 % (1) Typical values are determined with TA = TJ = 25°C and represent the most likely norm. (2) All limits are ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are 100% tested during production with TA = TJ = 25°C. All limits at temperature extremes are ensured via correlation using standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM2678 |
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