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LM2574HVM-12 데이터시트(PDF) 5 Page - Texas Instruments |
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LM2574HVM-12 데이터시트(HTML) 5 Page - Texas Instruments |
5 / 35 page LM2574, LM2574HV www.ti.com SNVS104C – JUNE 1999 – REVISED APRIL 2013 LM2574-15, LM2574HV-15 Electrical Characteristics Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range. Symbol Parameter Conditions LM2574-15 Units LM2574HV-15 (Limits) Typ Limit (1) SYSTEM PARAMETERS Test Circuit in Figure 23 and Figure 24,(2) VOUT Output Voltage VIN = 30V, ILOAD = 100 mA 15 V 14.70 V(Min) 15.30 V(Max) VOUT Output Voltage 18V ≤ VIN ≤ 40V, 0.1A ≤ ILOAD ≤ 0.5A 15 V LM2574 14.40/14.25 V(Min) 15.60/15.75 V(Max) VOUT Output Voltage 18V ≤ VIN ≤ 60V, 0.1A ≤ ILOAD ≤ 0.5A 15 14.40/14.25 V(Min) LM2574HV 15.68/15.83 V(Max) η Efficiency VIN = 18V, ILOAD = 0.5A 88 % (1) All limits specified at room temperature (Standard type face) and at temperature extremes (bold type face). All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level. (2) External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the LM2574 is used as shown in the Figure 24 test circuit, system performance will be as shown in system parameters section of Electrical Characteristics. LM2574-ADJ, LM2574HV-ADJ Electrical Characteristics Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range. Unless otherwise specified, VIN = 12V, ILOAD = 100 mA. Symbol Parameter Conditions LM2574-ADJ Units LM2574HV-ADJ (Limits) Typ Limit (1) SYSTEM PARAMETERS Test Circuit in Figure 23 and Figure 24(2) VFB Feedback Voltage VIN = 12V, ILOAD = 100 mA 1.230 V 1.217 V(Min) 1.243 V(Max) VFB Feedback Voltage 7V ≤ VIN ≤ 40V, 0.1A ≤ ILOAD ≤ 0.5A 1.230 V LM2574 VOUT Programmed for 5V. Circuit of Figure 24 1.193/1.180 V(Min) 1.267/1.280 V(Max) VFB Feedback Voltage 7V ≤ VIN ≤ 60V, 0.1A ≤ ILOAD ≤ 0.5A 1.230 LM2574HV VOUT Programmed for 5V. Circuit of Figure 24 1.193/1.180 V(Min) 1.273/1.286 V(Max) η Efficiency VIN = 12V, VOUT = 5V, ILOAD = 0.5A 77 % (1) All limits specified at room temperature (Standard type face) and at temperature extremes (bold type face). All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level. (2) External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the LM2574 is used as shown in the Figure 24 test circuit, system performance will be as shown in system parameters section of Electrical Characteristics. Copyright © 1999–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM2574 LM2574HV |
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