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MAX17536 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX17536 Datasheet(HTML) 1 Page - Maxim Integrated Products |
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1 / 19 page  General Description The MAX17536 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated high-side MOSFET operates over a 4.5V to 60V input. The converter can deliver up to 4A and generates output voltages from 0.9V up to 0.9 x VIN. The feedback (FB) voltage is accurate to within ±1.4% over -40°C to +125°C. The MAX17536 uses peak current-mode control. The device can be operated in the pulse-width modulation (PWM), pulse-frequency modulation (PFM), and discontinuous-conduction mode (DCM) control schemes. The device is available in a 20-pin (5mm x 5mm) thin QFN (TQFN) package. Simulation models are available. Applications ● IndustrialPowerSupplies ● DistributedSupplyRegulation ● Base-StationPowerSupplies ● WallTransformerRegulation ● High-VoltageSingle-BoardSystems ● General-PurposePoint-of-Load Benefits and Features ● ReducesExternalComponentsandTotalCost • No Schottky-Synchronous Operation • Internal Compensation for Any Output Voltage • Built-In Soft-Start • All-CeramicCapacitors,CompactLayout ● ReducesNumberofDC-DCRegulatorstoStock • Wide 4.5V to 60V Input • AdjustableOutputVoltageRangefrom0.9Vupto 90% of VIN • 100kHzto2.2MHzAdjustableSwitchingFrequency withExternalSynchronization ● ReducesPowerDissipation • PeakEfficiency>95% • PFM/DCMModesEnablesEnhancedLight-LoadEfficiency • AuxiliaryBootstrapLDOforImprovedEfficiency • 3.5µA Shutdown Current ● OperatesReliablyinAdverseIndustrialEnvironments • HiccuporLatchoffModeOverloadProtection • DL-to-LXShortDetectionFeature • Built-In Output-Voltage Monitoring with RESET • ProgrammableEN/UVLOThreshold • MonotonicStartupintoPrebiasedLoad • Overtemperature Protection • HighIndustrial-40oCto+125°CAmbient OperatingTemperatureRange/-40°Cto+150°C JunctionTemperatureRange 19-7586; Rev 2; 6/18 Ordering Information appears at end of data sheet. MAX17536 4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation Typical Application Circuit for 5V Output RESET EN/UVLO VIN VIN BST RT VIN MODE/SYNC VCC SGND CF SS FB DL PGND LX LX LX VIN C11 22000pF EXTVCC 2.2µF 2.2µF 2.2µF 0.1µF 4.7µH 47µF VOUT 5V,4A 196kΩ 43.2kΩ MAX17536 FSW = 450kHz L1 = XAL6060-472ME N1 = SIS468DN C6 = 2.2µF/X7R/10V/0603(MURATA GRM188R71A225K) C8 = 47µF/X7R/10V/1210(MURATA GRM32ER71A476KE15) C9 = C10 = 22µF/X7R/10V/1210(MURATA GRM32ER71A226K) C13 = 0.1µF/50V/X7R/0402 (TDK C1005X7R1H104K050BB) VIN 6.5V-60V R3 C6 C7 C1 C2 C8 C9 R4 L1 N1 R1 4.7Ω 22µF C10 22µF C3 C4 C5 0.1µF 0.1µF 0.1µF TYPICAL APPLICATION CIRCUIT FOR 5V OUTPUT VOUT R8 C13 4.7Ω 0.1µF Click here for production status of specific part numbers. |
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