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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC3829 датащи(PDF) 39 Page - Linear Technology |
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LTC3829 датащи(HTML) 39 Page - Linear Technology |
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39 / 54 page  LTC3838 39 3838fa APPLICATIONS INFORMATION Figure 13. Design Example: 4.5V to 26V Input, 1.2V/15A and 1.5V/15A Dual Outputs, 350kHz, DCR Sense, DTR Enabled, Step-Down Converter 100k 90.9k 82.5k 3838 F13a 0.1μF 0.1μF 0.01μF 22pF 220pF L2 0.56μH COUT3 100μF 2 COUT4 330μF 2 VOUT2 1.5V 15A 15k DB2 MT2 MB2 3.57k + LTC3838 2.2Ω 2.2Ω 10k 15k 100k 90.9k 82.5k 115k VIN 1μF 0.1μF 4.7μF 0.1μF 0.01μF 22pF 220pF L1 0.56μH COUT2 330μF 2 COUT1 100μF 2 VOUT1 1.2V 15A VIN 4.5V TO 26V 15k 10k 10k SENSE1– SENSE1+ BOOST1 TG1 SW1 SENSE2+ BOOST2 TG2 SW2 DRVCC1 INTVCC DRVCC2 EXTVCC DB1 MT1 3.57k SENSE2– BG1 BG2 VFB2 PGND VOUTSENSE1 + VOUTSENSE1 – PGOOD1 PGOOD2 TRACK/SS1 ITH1 DTR1 VRNG1 TRACK/SS2 ITH2 DTR2 PHASMD MODE/PLLIN CLKOUT RUN2 VRNG2 SGND RUN1 RT PGOOD1 PGOOD2 MB1 1μF CIN2 10μF 3 + CIN1 220μF + CIN1: PANASONIC EEEFK1V221P CIN2: TAIYO YUDEN GMK325BJ106MN-T COUT2, COUT4: SANYO 2R5TPE330M9 COUT1, COUT3: MURATA GRM31CR60J107ME39L DB1, DB2: CENTRAL SEMI CMDSH-4ETR L1, L2: VISHAY IHLP4040DZERR56M01 MT1, MT2: RENESAS RJK0305DPB MB1, MB2: RENESAS RJK0330DPB LOAD CURRENT (A) 0.1 40 50 60 70 80 100 110 3838 F13b 90 0 0.5 1.0 1.5 2.0 3.0 2.5 EFFICIENCY VIN = 12V VOUT = 1.2V FORCED CONTINUOUS MODE DISCONTINUOUS MODE POWER LOSS LOAD CURRENT (A) 0.1 40 50 60 70 80 100 110 3838 F13c 90 0 0.5 1.0 1.5 2.0 3.0 2.5 EFFICIENCY VIN = 12V VOUT = 1.5V FORCED CONTINUOUS MODE DISCONTINUOUS MODE POWER LOSS |
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