LM2575HVT-12 National Semiconductor, LM2575HVT-12 Datasheet
LM2575HVT-12
Specifications of LM2575HVT-12
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LM2575HVT-12 Summary of contents
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... Typical Application (Fixed Output Voltage Versions) Note: Pin numbers are for the TO-220 package. SIMPLE SWITCHER ® registered trademark of National Semiconductor Corporation. © 2004 National Semiconductor Corporation 1A Step-Down Voltage Regulator ® Features n 3.3V, 5V, 12V, 15V, and adjustable output versions n Adjustable version output voltage range, 1 ...
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... LM2575T-XX or LM2575HVT-XX See NS Package Number T05A www.national.com FIGURE 1. (XX indicates output voltage option. See Ordering Information table for complete part Bent, Staggered Leads 5-Lead TO-220 (T) 01147523 Top View 2 01147502 01147524 Side View LM2575T-XX Flow LB03 or LM2575HVT-XX Flow LB03 See NS Package Number T05D ...
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... See NS Package Number TS5B Standard Voltage Rating (40V) LM2575HVT-3.3 LM2575HVT-5.0 LM2575HVT-12 LM2575HVT-15 LM2575HVT-ADJ LM2575HVT-3.3 Flow LB03 LM2575HVT-5.0 Flow LB03 LM2575HVT-12 Flow LB03 LM2575HVT-15 Flow LB03 LM2575HVT-ADJ Flow LB03 3 24-Lead Surface Mount (M) 01147526 Top View LM2575M-XX or LM2575HVM-XX See NS Package Number M24B High Temperature ...
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Ordering Information Package NSC Type Package Number 16-Pin Molded N16A DIP 24-Pin M24B Surface Mount 5-Lead TO-263 TS5B Surface Mount 16-Pin Ceramic J16A DIP www.national.com (Continued) Standard Voltage Rating (40V) LM2575N-5.0 LM2575HVN-5.0 LM2575N-12 LM2575HVN-12 LM2575N-15 LM2575HVN-15 LM2575N-ADJ LM2575HVN-ADJ LM2575M-5.0 LM2575HVM-5.0 ...
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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 LM1575/LM2575 LM2575HV ON /OFF Pin Input Voltage Output Voltage to Ground (Steady State) Power Dissipation Storage Temperature Range Maximum Junction Temperature LM1575-3 ...
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LM1575-5.0, LM2575-5.0, LM2575HV-5.0 Electrical Characteristics Specifications with standard type face are for T ture Range. Symbol Parameter η Efficiency V LM1575-12, LM2575-12, LM2575HV-12 Electrical Characteristics Specifications with standard type face are for T ture Range . Symbol Parameter SYSTEM PARAMETERS ...
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LM1575-ADJ, LM2575-ADJ, LM2575HV-ADJ Electrical Characteristics Specifications with standard type face are for T Range. Symbol Parameter SYSTEM PARAMETERS (Note 4) Test Circuit Figure 2 V Feedback Voltage V OUT IN V OUT Circuit of Figure 2 0.2A ≤ ...
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All Output Voltage Versions Electrical Characteristics Specifications with standard type face are for T ture Range. Unless otherwise specified, V and V = 30V for the 15V version Symbol Parameter DEVICE PARAMETERS θ Thermal Resistance T Package, Junction ...
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Typical Performance Characteristics Normalized Output Voltage Dropout Voltage Quiescent Current (Circuit of Figure 2) 01147532 01147534 01147536 9 Line Regulation 01147533 Current Limit 01147535 Standby Quiescent Current 01147537 www.national.com ...
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Typical Performance Characteristics Oscillator Frequency Efficiency Quiescent Current vs Duty Cycle www.national.com (Circuit of Figure 2) (Continued) 01147538 Minimum Operating Voltage 01147540 01147542 10 Switch Saturation Voltage 01147539 01147541 Feedback Voltage vs Duty Cycle 01147543 ...
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Typical Performance Characteristics Feedback Pin Current Switching Waveforms OUT A: Output Pin Voltage, 10V/div B: Output Pin Current, 1A/div C: Inductor Current, 0.5A/div D: Output Ripple Voltage, 20 mV/div, AC-Coupled Horizontal Time Base: 5 µs/div Test Circuit ...
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Test Circuit and Layout Guidelines C — 100 µF, 75V, Aluminum Electrolytic IN C — 330 µF, 25V, Aluminum Electrolytic OUT D1 — Schottky, 11DQ06 L1 — 330 µH, PE-52627 (for 5V in, 3.3V out, use 100 µH, PE-92108) where ...
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LM2575 Series Buck Regulator Design Procedure PROCEDURE (Fixed Output Voltage Versions) Given Regulated Output Voltage (3.3V, 5V, 12V, or OUT 15V) V (Max) = Maximum Input Voltage I IN Maximum Load Current 1. Inductor Selection (L1) A. Select ...
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Inductor Value Selection Guides FIGURE 3. LM2575(HV)-3.3 FIGURE 4. LM2575(HV)-5.0 www.national.com (For Continuous Mode Operation) 01147510 FIGURE 5. LM2575(HV)-12 01147511 FIGURE 6. LM2575(HV)-15 01147514 FIGURE 7. LM2575(HV)-ADJ 14 01147512 01147513 ...
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Inductor Value Selection Guides PROCEDURE (Adjustable Output Voltage Versions) Given Regulated Output Voltage V OUT Maximum Input Voltage I (Max) = Maximum Load LOAD Current F = Switching Frequency (Fixed at 52 kHz) 1. Programming Output Voltage (Selecting ...
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... To further simplify the buck regulator design procedure, National Semiconductor is making available computer design software to be used with the Simple Switcher line of switching regulators. Switchers Made Simple (version 3.3) is available diskette for IBM compatible computers from a National Semiconductor sales office in your area. ...
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Inductor Value Selection Guides V R 20V 1N5817 MBR120P SR102 30V 1N5818 MBR130P 11DQ03 SR103 40V 1N5819 MBR140P 11DQ04 SR104 50V MBR150 11DQ05 SR105 60V MBR160 11DQ06 SR106 Inductor Inductor Code Value L100 L150 L220 L330 L470 L680 H150 H220 ...
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Application Hints INPUT CAPACITOR ( maintain stability, the regulator input pin must be by- passed with at least a 47 µF electrolytic capacitor. The capacitor’s leads must be kept short, and located near the regulator. If the ...
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Application Hints (Continued) Tantalum capacitors can have a very low ESR, and should be carefully evaluated the only output capacitor. Be- cause of their good low temperature characteristics, a tan- talum can be used in parallel with ...
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Application Hints (Continued) Since the lead frame is solid copper, heat from the die is readily conducted through the leads to the printed circuit board copper, which is acting as a heat sink. For best thermal performance, the ground pins ...
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Additional Applications Typical Load Current 200 mA for V = −5.2V IN 500 mA for V = −7V IN Note: Pin numbers are for TO-220 package. FIGURE 11. Negative Boost UNDERVOLTAGE LOCKOUT In some applications it is desirable to keep ...
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Additional Applications Note: Pin numbers are for the TO-220 package. FIGURE 15. 1.2V to 55V Adjustable 1A Power Supply with Low Output Ripple Definition of Terms BUCK REGULATOR A switching regulator topology in which a higher voltage is converted to ...
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Definition of Terms (Continued) CONTINUOUS/DISCONTINUOUS MODE OPERATION Relates to the inductor current. In the continuous mode, the inductor current is always flowing and never drops to zero, vs. the discontinuous mode, where the inductor current drops to zero for a ...
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Physical Dimensions unless otherwise noted LM1575J-12/883, LM1575J-15/883, or LM1575J-ADJ/883 Order Number LM2575M-5.0, LM2575HVM-5.0, LM2575M-12, www.national.com inches (millimeters) 16-Lead Ceramic Dual-in-Line (J) Order Number LM1575J-3.3/883, LM1575J-5.0/883, NS Package Number J16A 14-Lead Wide Surface Mount (WM) LM2575HVM-12, LM2575M-15, LM2575HVM-15, LM2575M-ADJ or LM2575HVM-ADJ ...
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... Order Number LM2575N-5.0, LM2575HVN-5.0, LM2575N-12, LM2575HVN-12, LM2575N-15, LM2575HVN-15, LM2575N-ADJ or LM2575HVN-ADJ Order Number LM2575T-3.3, LM2575HVT-3.3, LM2575T-5.0, LM2575HVT-5.0, LM2575T-12, LM2575HVT-12, LM2575T-15, LM2575HVT-15, LM2575T-ADJ or LM2575HVT-ADJ 16-Lead Molded DIP (N) NS Package Number N16A 5-Lead TO-220 (T) NS Package Number T05A 25 www ...
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Physical Dimensions Order Number LM2575S-3.3, LM2575HVS-3.3, LM2575S-5.0, LM2575HVS-5.0, LM2575S-12, LM2575HVS-12, LM2575S-15, LM2575HVS-15, LM2575S-ADJ or LM2575HVS-ADJ www.national.com inches (millimeters) unless otherwise noted (Continued) TO-263, Molded, 5-Lead Surface Mount NS Package Number TS5B 26 ...
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... National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. inches (millimeters) unless otherwise noted (Continued) Bent, Staggered 5-Lead TO-220 (T) LM2575T-12 Flow LB03, LM2575HVT-12 Flow LB03, LM2575T-15 Flow LB03, LM2575HVT-15 Flow LB03, NS Package Number T05D 2 ...