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MAX17501BATB Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX17501BATB Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 22 page MAX17501 60V, 500mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter General Description The MAX17501 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 60V input voltage range. It deliv- ers output currents up to 500mA at output voltages of 0.9V to 92%VIN. The output voltage is accurate to within ±1.7% over -40°C to +125°C. The MAX17501 is avail- able in a compact TDFN package. Simulation models are available. The device features peak-current-mode control with pulse-width modulation (PWM). Users can choose devic- es with either pulse frequency modulation (PFM) or forced PWM scheme. PFM devices skip pulses at light load for higher efficiency, while forced-PWM devices operate with fixed switching frequency at any load for noise sensi- tive-applications. The low-resistance, on-chip MOSFETs ensure high efficiency at full load and simplify the layout. A programmable soft-start feature allows users to reduce input inrush current. The device also incorporates an output enable/undervoltage lockout pin (EN/UVLO) that allows the user to turn on the part at the desired input- voltage level. An open-drain RESET pin provides a delayed power-good signal to the system upon achieving successful regulation of the output voltage. Applications ● IndustrialProcessControl ● HVACandBuildingControl ● BaseStation,VOIP,Telecom ● HomeTheatre ● Automotive ● Battery-PoweredEquipment ● General-PurposePoint-of-Load Benefits and Features ● EliminatesExternalComponentsandReduceTotal Cost • NoSchottky-SynchronousOperationforHigh EfficiencyandReducedCost • Internal Compensation and Feedback Divider for 3.3V and 5V Outputs • All-Ceramic Capacitors, Ultra-Compact Layout ● ReducesNumberofDC-DCRegulatorstoStock • Wide4.5Vto60VInputVoltageRange • 0.9V to 92%VIN Output Voltage • Delivers up to 500mA • 600kHzand300kHzSwitchingFrequencyOptions • Available in a 10-Pin, 3mm x 2mm TDFN Package ● ReducesPowerDissipation • Peak Efficiency > 90% • PFMFeatureforHighLight-LoadEfficiency • ShutdownCurrent=0.9μA(typ) ● OperatesReliablyinAdverseIndustrialEnvironments • Hiccup-ModeCurrentLimit,SinkCurrentLimit, and Autoretry Startup • Built-InOutput-VoltageMonitoring(Open-Drain RESET Pin) • Resistor-ProgrammableEN/UVLOThreshold • Adjustable Soft-Start and Prebiased Power-Up • -40°Cto+125°CIndustrialTemperatureRange 19-6244; Rev 2; 1/13 Ordering Information appears at end of data sheet. For related parts and recommended products to use with this part, refer to www.maximintegrated.com/MAX17501.related. |
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