SWITCHMODEâ¢ Power Supply Reference Manual

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SMPSRMACLineRectifier+Start–upSwitchBulkStorageCapacitorPWMControlICPWM SwitcherUltrafastRectifierMOSFETFigure 39. AC/DC Power Supply for Storage,Imaging & Entertainment+Prog.Prec.RefLoadn–outputsTable 2.Part # Description Key Parameters Samples/Prod.MC33363A/B/65 PWM Control IC Controller + 700 V Start–up & Power Switch, < 15 W Now/NowMC33364 PWM Control IC Critical Conduction Mode, SMPS Controller Now/NowTL431B Program Precision Reference 0.4% Tolerance, Prog. Output up to 36 V, TemperatureCompensatedNow/NowMSRD620CT Ultrasoft Rectifier 200 V, 6 A, trr = 55 ns, Ir max = 1 uA Now/NowMR856 Fast Recovery Rectifier 600 V, 3 A, Vf = 1.25 V @ 3.0 A Now/NowNCP1200 PWM Current–Mode Controller 110 mA Source/Sink, O/P Protection, 40/60/110 kHz Now/NowNCP1205 Single–Ended PWM Controller Quasi–resonant Operation, 250 mA Source/Sink,8–36 V OperationNow/NowUC3842/3/4/5High Performance Current–ModeControllers500 kHz Freq., Totem Pole O/P, Cycle–by–CycleCurrent Limiting, UV LockoutNow/Nowhttp://onsemi.com39
SMPSRM+V in–Control ICLoCoVoltageRegulation+V out–LoadLo++V in Co VControl ICout––LoadBuck RegulatorSynchronous Buck RegulatorFigure 40. DC – DC ConversionTable 3.Part # Description Key Parameters Samples/Prod.MC33263Low Noise, Low DropoutRegulator IC150 mA; 8 Outputs 2.8 V – 5 V; SOT 23L 6 LeadPackageNow/NowMC33269 Medium Dropout Regulator IC 0.8 A; 3.3; 5, 12 V out; 1 V diff; 1% Tolerance Now/NowMC33275/375 Low Dropout Regulator 300 mA; 2.5, 3, 3.3, 5 V out Now/NowLP2950/51 Low Dropout, Fixed Voltage IC 0.1 A; 3, 3.3, 5 V out; 0.38 V diff; 0.5% Tolerance Now/NowMC78PCCMOS LDO Linear VoltageRegulatorI out = 150 mA, Available in 2.8 V, 3 V, 3.3 V, 5 V; SOT23 – 5 LeadsNow/NowMC33470 Synchronous Buck Regulator IC Digital Controlled; V cc = 7 V; Fast Response Now/NowNTMSD2P102LR2 P–Ch FET w/Schottky in SO–8 20 V, 2 A, 160 m FET/1 A, Vf = 0.46 V Schottky Now/NowNTMSD3P102R2 P–Ch FET w/Schottky in SO–8 20 V, 3 A, 160 m FET/1 A, Vf = 0.46 V Schottky Now/NowMMDFS6N303R2 N–Ch FET w/Schottky in SO–8 30 V, 6 A, 35 m FET/3 A, Vf = 0.42 V Schottky Now/NowNTMSD3P303R2 P–Ch FET w/Schottky in SO–8 30 V, 3 A, 100 m FET/3 A, Vf = 0.42 V Schottky Now/NowMBRM140T31A Schottky in POWERMITE®Package40 V, 1 A, Vf = 0.43 @ 1 A; Ir = 0.4 mA @ 40 V Now/NowMBRA130LT3 1A Schottky in SMA Package 40 V, 1 A, Vf = 0.395 @ 1 A; Ir = 1 mA @ 40 V Now/NowMBRS2040LT3 2A Schottky in SMB Package 40 V, 2 A, Vf = 0.43 @ 2 A; Ir = 0.8 mA @ 40 V Now/NowMMSF3300 Single N–Ch MOSFET in SO–8 30 V, 11.5 A (1) , 12.5 m @ 10 V Now/NowNTD4302 Single N–Ch MOSFET in DPAK 30 V, 18.3 A (1) , 10 m @ 10 V Now/NowNTTS2P03R2MGSF3454X/VNTGS3441T1Single P–Ch MOSFET inMicro8 PackageSingle N–Ch MOSFET inTSOP–6Single P–Ch MOSFET inTSOP–630 V, 2.7 A, 90 m @ 10 V Now/Now30 V, 4.2 A, 65 m @ 10 V Now/Now20 V, 3.3 A, 100 m @ 4.5 V Now/NowNCP1500Dual Mode PWM Linear BuckConverterProg. O/P Voltage 1.0, 1.3, 1.5, 1.8 VNow/NowNCP1570Low Voltage Synchronous BuckConverterUV Lockout, 200 kHz Osc. Freq., 200 ns ResponseNow/NowNCP1571Low Voltage Synchronous BuckConverterUV Lockout, 200 kHz Osc. Freq., 200 ns ResponseNow/NowCS5422Dual Synchronous BuckConverter150 kHz–600 kHz Prog. Freq., UV Lockout, 150 nsTransient ResponseNow/Now(1) Continuous at T A = 25° C, Mounted on 1” square FR–4 or G10, V GS = 10 V t 10 secondshttp://onsemi.com40
Page 1 and 2: SMPSRM/DRev. 3, Jul-2002SWITCHMODE
Page 3 and 4: SMPSRMON Semiconductor and are regi
Page 6 and 7: SMPSRMIntroductionThe never-ending
Page 8 and 9: SMPSRMThe Flyback-Mode ConverterThe
Page 10 and 11: SMPSRMFactors 3, 4 and 5 have a dir
Page 12 and 13: SMPSRM+N1 N2C inV inControlTSWDL OC
Page 14 and 15: SMPSRMInterleaved Multiphase Conver
Page 16 and 17: SMPSRMV CCOSCChargeClock RampV erro
Page 18 and 19: SMPSRMThe Power MOSFETPower MOSFETs
Page 22 and 23: SMPSRMThe Magnetic ComponentsThe ma
Page 24 and 25: ÉÉ ÂÂÂÂÂÂÂÂÂÂÂÉÉÉÉ
Page 26 and 27: SMPSRMThe forward conduction loss o
Page 28 and 29: SMPSRMSnubbers and ClampsSnubbers a
Page 30 and 31: SMPSRMThe Active ClampAn active cla
Page 32 and 33: SMPSRMIn this design, both the powe
Page 34 and 35: SMPSRMA Power Factor Correction (PF
Page 36 and 37: SWITCHMODE Power Supply ExamplesSMP
Page 38 and 39: V_SyncH_SyncMonitorMCUSYNC PROCESSO
Page 42 and 43: http://onsemi.com41Part No. VRRM(V)
Page 44 and 45: SMPSRMApplication: Compact Power Fa
Page 46 and 47: SMPSRMFeatures:Off power consumptio
Page 48 and 49: SMPSRMFeatures:70 W output power fr
Page 50 and 51: SMPSRMFeatures:Off power consumptio
Page 52 and 53: SMPSRMApplication: 110 W Output Fly
Page 54 and 55: SMPSRMApplication: Efficient Safety
Page 56 and 57: SMPSRMApplication: AC-DC Battery Ch
Page 58 and 59: SMPSRMLiterature Available from ON
Page 60 and 61: SMPSRMWeb Locations for Switching-M
Page 62 and 63: Analog ICs for SWITCHMODE Power Sup
Page 64 and 65: SMPSRMON SEMICONDUCTOR STANDARD DOC

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SWITCHMODEâ¢ Power Supply Reference Manual