データシート (ADP1879-0.6-EVALZ)目次Features1Applications1Typical Applications Circuit1General Description1Revision History2Specifications3Absolute Maximum Ratings5Thermal Resistance5Boundary Condition5ESD Caution5Pin Configuration and Function Descriptions6Typical Performance Characteristics7Theory of Operation17Block Diagram17Startup18Soft Start18Precision Enable Circuitry18Undervoltage Lockout18On-Board Low Dropout (LDO) Regulator18Thermal Shutdown19Programming Resistor (RES) Detect Circuit19Valley Current-Limit Setting19Hiccup Mode During Short Circuit21Synchronous Rectifier21ADP1879 Power Saving Mode (PSM)21Timer Operation22Pseudo Fixed Frequency22Power-Good Monitoring23Applications Information24Feedback Resistor Divider24Inductor Selection24Output Ripple Voltage (ΔVRR)24Output Capacitor Selection24Compensation Network25Output Filter Impedance (ZFILT)25Error Amplifier Output Impedance (ZCOMP)25Error Amplifier Gain (Gm)25Current-Sense Loop Gain (GCS)25Crossover Frequency25Efficiency Consideration26Channel Conduction Loss26MOSFET Driver Loss26MOSFET Switching Loss26Body Diode Conduction Loss26Inductor Loss27Input Capacitor Selection27Thermal Considerations27Design Example29Input Capacitor29Inductor29Current-Limit Programming29Output Capacitor29Feedback Resistor Network Setup30Compensation Network30Loss Calculations30External Component Recommendations31Layout Considerations33IC Section (Left Side of Evaluation Board)35Power Section35Differential Sensing36Typical Application Circuits3712 A, 300 kHz High Current Application Circuit375.5 V Input, 600 kHz Current Application Circuit37300 kHz High Current Application Circuit38Packaging and Ordering Information39Outline Dimensions39Ordering Guide40サイズ: 1.88MBページ数: 40Language: Englishマニュアルを開く