lm2590hvtadj-aq National Semiconductor Corporation, lm2590hvtadj-aq Datasheet
lm2590hvtadj-aq
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lm2590hvtadj-aq Summary of contents
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... Typical Application (Fixed Output Voltage Versions) SIMPLE SWITCHER ® and Switchers Made Simple ® are registered trademarks of National Semiconductor Corporation. © 2004 National Semiconductor Corporation Power Converter 150 kHz 1A ® Features n Reliability Qualification for Automotive n 3.3V, 5V, and adjustable output versions n Adjustable version output voltage range, 1 ...
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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Maximum Supply Voltage ( /SS Pin Input Voltage (Note 2) Delay Pin Voltage (Note 2) Flag ...
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All Output Voltage Versions Electrical Characteristics Specifications with standard type face are for T ture Range. Unless otherwise specified, V Symbol Parameter DEVICE PARAMETERS f Oscillator (Note 7) O Frequency V Saturation Voltage (Note 8) (Note 9) ...
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All Output Voltage Versions Electrical Characteristics Specifications with standard type face are for T ture Range. Unless otherwise specified, V Symbol Parameter FLAG/DELAY CONTROL Test Circuit of Figure 1 Regulator Dropout Low (Flag ON) Detector Threshold Voltage VF Flag Output ...
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Typical Performance Characteristics NormalizedOutput Voltage Efficiency Switch Current Limit (Circuit of Figure 1) Line Regulation 20097183 Switch SaturationVoltage 20097185 Dropout Voltage 200971A2 5 200971A0 20097186 200971A3 www.national.com ...
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Typical Performance Characteristics Operating Quiescent Current Minimum Operating Supply Voltage Flag Saturation Voltage www.national.com (Circuit of Figure 1) (Continued) Shutdown Quiescent Current 200971A4 Feedback Pin Bias Current 200971A6 Switching Frequency 200971A8 6 200971A5 200971A7 200971A9 ...
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Typical Performance Characteristics Soft-start Delay Pin Current Shutdown/Soft-start Threshold Voltage (Circuit of Figure 1) (Continued) Shutdown /Soft-start 200971B0 Soft-start Response 200971B2 Internal Gain-Phase Characteristics 200971A1 7 Current 200971B1 20097118 20097178 www.national.com ...
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Typical Performance Characteristics Continuous Mode Switching Waveforms V = 20V 5V OUT µ 100 µF, C OUT A: Output Pin Voltage, 10V/div. B: Inductor Current 0.5A/div. C: Output Ripple Voltage, 50 ...
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... Connection Diagrams and Order Information Bent and Staggered Leads, Through Hole Package 7-Lead TO-220 (T) See NS Package Number TA07B ORDER INFORMATION Adjustable 3.3V 5.0V Surface Mount Package 7-Lead TO-263 (S) 20097150 See NS Package Number TS7B TO-220 LM2590HVTADJ-AQ LM2590HVT3.3-AQ LM2590HVT5.0-AQ 9 20097123 TO-263 LM2590HVSADJ-AQ LM2590HVS3.3-AQ LM2590HVS5.0-AQ www.national.com ...
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Test Circuit and Layout Guidelines Component Values shown are for V = 15V 5V 1A. OUT LOAD C — 470 µF, 50V, Aluminum Electrolytic Nichicon “PM Series” — 220 µF, 25V Aluminum Electrolytic, ...
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Block Diagram Pin Functions +V (Pin 1) — This is the positive input supply for the IC IN switching regulator. A suitable input bypass capacitor must be present at this pin to minimize voltage transients and to supply the switching ...
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Pin Functions (Continued) Note If any of the above three features (Shutdown /Soft- start, Error Flag, or Delay) are not used, the respective pins can be left open. www.national.com FIGURE 2. Soft-Start, Delay, Error Output 12 20097131 ...
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Pin Functions (Continued) Inductor Value Selection Guides (For Continuous Mode Operation) FIGURE 3. Timing Diagram for 5V Output FIGURE 4. LM2590HV-3.3-AQ 13 20097132 20097126 www.national.com ...
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Inductor Value Selection Guides www.national.com (For Continuous Mode Operation) (Continued) FIGURE 5. LM2590HV-5.0-AQ FIGURE 6. LM2590HV-ADJ-AQ 14 20097127 20097129 ...
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Inductor Value Selection Guides Coilcraft Inc. Coilcraft Inc., Europe Pulse Engineering Inc. Pulse Engineering Inc., Europe Renco Electronics Inc. Schott Corp. Cooper Electronic Tech. (Coiltronics) TDK FIGURE 8. Contact Information for Suggested Inductor Manufacturers (For Continuous Mode Operation) (Continued) FIGURE ...
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Application Information INDUCTOR SELECTION PROCEDURE Application Note AN-1197 titled "Selecting Inductors for Buck Converters" provides detailed information on this topic. For a quick-start the designer may refer to the nomographs pro- vided in Figure 4 to Figure 6. To widen ...
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Application Information Therefore, looking at Figure 4 we quick-select a 100µH/1A inductor (designed for 150 kHz operation) for this applica- tion should confirm that it is rated to handle 100 µJ (see Figure 6) by the procedure shown ...
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Application Information FIGURE 9. Typical Circuit Using Shutdown /Soft-start and Error Flag Features FIGURE 10. Inverting −5V Regulator With Shutdown and Soft-start lNVERTING REGULATOR The circuit in Figure 10 converts a positive input voltage to a negative output voltage with ...
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Application Information tolerances, we should take the min value of Inductance for L in the equation above (typically 20% less than the nominal value). Further, the above equation disregards the drop across the Switch and the diode. This is equivalent ...
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Application Information printed circuit traces and should be kept as short as possible. For best results, external components should be located as close to the switcher lC as possible using ground plane construction or single point grounding. If open core ...
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... Physical Dimensions inches (millimeters) unless otherwise noted LM2590HVT3.3-AQ, LM2590HVT5.0-AQ, or LM2590HVTADJ-AQ LM2590HVS3.3-AQ, LM2590HVS5.0-AQ, or LM2590HVSADJ-AQ 7-Lead TO-220 Bent and Staggered Package NS Package Number TA07B 7-Lead TO-263 Bent and Formed Package NS Package Number TS7B 21 www.national.com ...
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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...