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LM2597MX-3.3 数据表(PDF) 4 Page - Texas Instruments |
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LM2597MX-3.3 数据表(HTML) 4 Page - Texas Instruments |
4 / 48 page LM2597, LM2597HV SNVS119C – MARCH 1998 – REVISED APRIL 2013 www.ti.com LM2597/LM2597HV-3.3 Electrical Characteristics Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range.VINmax=40V for the LM2597 and 60V for the LM2597HV Symbol Parameter Conditions LM2597/LM2597HV-3.3 Units (Limits) Typ (1) Limit (2) SYSTEM PARAMETERS Test Circuit Figure 31(3)(4) VOUT Output Voltage 4.75V ≤ VIN ≤ VINmax, 0.1A ≤ ILOAD ≤ 0.5A 3.3 V 3.168/3.135 V(min) 3.432/3.465 V(max) η Efficiency VIN = 12V, ILOAD = 0.5A 80 % (1) Typical numbers are at 25°C and represent the most likely norm. (2) 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 (AOQL). (3) External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the LM2597/LM2597HV is used as shown in the Figure 31 test circuit, system performance will be as shown in system parameters section of Electrical Characteristics. (4) No diode, inductor or capacitor connected to output pin. LM2597/LM2597HV-5.0 Electrical Characteristics Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range.VINmax=40V for the LM2597 and 60V for the LM2597HV Symbol Parameter Conditions LM2597/LM2597HV-5.0 Units (Limits) Typ (1) Limit (2) SYSTEM PARAMETERS Test Circuit Figure 31(3)(4) VOUT Output Voltage 7V ≤ VIN ≤ VINmax, 0.1A ≤ ILOAD ≤ 0.5A 5 V 4.800/4.750 V(min) 5.200/5.250 V(max) η Efficiency VIN = 12V, ILOAD = 0.5A 82 % (1) Typical numbers are at 25°C and represent the most likely norm. (2) 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 (AOQL). (3) External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the LM2597/LM2597HV is used as shown in the Figure 31 test circuit, system performance will be as shown in system parameters section of Electrical Characteristics. (4) No diode, inductor or capacitor connected to output pin. 4 Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: LM2597 LM2597HV |
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类似说明 - LM2597MX-3.3 |
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