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LM2574 Datasheet(PDF) 11 Page - Texas Instruments |
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LM2574 Datasheet(HTML) 11 Page - Texas Instruments |
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11 / 34 page 
LM2574, LM2574HV www.ti.com SNVS104C – JUNE 1999 – REVISED APRIL 2013 Block Diagram R1 = 1k 3.3V, R2 = 1.7k 5V, R2 = 3.1k 12V, R2 = 8.84k 15V, R2 = 11.3k For Adj. Version R1 = Open, R2 = 0 Ω Note: Pin numbers are for the 8-pin PDIP package. Figure 22. Test Circuit and Layout Guidelines CIN — 22 μF, 75V Aluminum Electrolytic COUT — 220 μF, 25V Aluminum Electrolytic D1 — Schottky, 11DQ06 L1 — 330 μH, 52627 (for 5V in, 3.3V out, use 100 μH, RL-1284-100) R1 — 2k, 0.1% R2 — 6.12k, 0.1% Figure 23. Fixed Output Voltage Versions Copyright © 1999–2013, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: LM2574 LM2574HV |
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