Datasheet ADP2381 (Analog Devices) - 4

ADP2381 Data Sheet Parameter Symbol Test Conditions/Comments Min Typ Max Unit
POWER GOOD (PGOOD) PGOOD Range FB rising threshold 95 % FB falling threshold 90 % PGOOD Deglitch Time PGOOD from low to high 1024 Clock cycles PGOOD from high to low 16 Clock cycles PGOOD Leakage Current V = 5 V 0.01 0.1 µA PGOOD PGOOD Output Low Voltage I = 1 mA 125 200 mV PGOOD UVLO Rising Threshold 1.2 1.28 V Falling Threshold 1.02 1.1 V THERMAL Thermal Shutdown Threshold 150 °C Thermal Shutdown Hysteresis 25 °C 1 Pin-to-pin measurement. 2 Guaranteed by design. Rev. 0 | Page 4 of 28 Document Outline Features Applications Typical Applications Circuit General Description Revision History Specifications Absolute Maximum Ratings Thermal Information ESD Caution Pin Configuration and Function Description Typical Performance Characteristics Functional Block Diagram Theory of Operation Control Scheme Internal Regulator (VREG) Bootstrap Circuitry Low-Side Driver Oscillator Synchronization Enable and Soft Start Power Good Peak Current Limit and Short-Circuit Protection Overvoltage Protection (OVP) Undervoltage Lockout (UVLO) Thermal Shutdown Applications Information Input Capacitor Selection Output Voltage Setting Voltage Conversion Limitations Inductor Selection Output Capacitor Selection Low-Side Power Device Selection Programming Input Voltage UVLO Compensation Design Compensation Network Between COMP and GND Compensation Network Between COMP and FB ADIsimPower Design Tool Design Example Output Voltage Setting Frequency Setting Inductor Selection Output Capacitor Selection Low-Side MOSFET Selection Compensation Components Soft Start Time Program Input Capacitor Selection Schematic of Design Example External Components Recommendation Circuit Board Layout Recommendations Typical Application Circuits Outline Dimensions Ordering Guide