Datasheet ADP2323 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Dual 3 A, 20 V Synchronous Step-Down Regulator with Integrated High-Side MOSFET |
| Pages / Page | 32 / 5 — Data Sheet. ADP2323. Parameters. Symbol. Test Conditions/Comments. Min. … |
| Revision | A |
| File Format / Size | PDF / 992 Kb |
| Document Language | English |
Data Sheet. ADP2323. Parameters. Symbol. Test Conditions/Comments. Min. Typ. Max. Units
Model Line for this Datasheet
Text Version of Document
Data Sheet ADP2323 Parameters Symbol Test Conditions/Comments Min Typ Max Units
TRACKING INPUT (TRKx PINS) TRKx Input Voltage Range 0 600 mV TRKx-to-FBx Offset Voltage TRKx = 0 mV to 500 mV −10 +10 mV TRKx Input Bias Current 100 nA POWER GOOD (PGOODx PINS) Power Good Rising Threshold 87 90 93 % Power Good Hysteresis 5 % Power Good Deglitch Time From FBx to PGOODx 16 Clock cycle PGOODx Leakage Current V = 5 V 0.1 1 µA PGOOD PGOODx Output Low Voltage I = 1 mA 50 100 mV PGOOD ENABLE (ENx PINS) ENx Rising Threshold 1.2 1.28 V ENx Falling Threshold 1.02 1.1 V ENx Source Current EN voltage below falling threshold 5 µA EN voltage above rising threshold 1 µA MODE (MODE PIN) Input High Voltage 1.3 V Input Low Voltage 0.4 V THERMAL Thermal Shutdown Threshold 150 °C Thermal Shutdown Hysteresis 15 °C 1 Tested in a feedback loop that adjusts VFB to achieve a specified voltage on the COMPx pin. 2 Pin-to-pin measurements. 3 Guaranteed by design. Rev. A | Page 5 of 32 Document Outline Features Applications Typical Application Circuit General Description Revision History Functional Block Diagram Specifications Absolute Maximum Ratings Thermal Resistance Boundary Condition ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme PWM Mode PFM Mode Precision Enable/Shutdown Separate Input Voltages Internal Regulator (INTVCC) Bootstrap Circuitry Low-Side Driver Oscillator Synchronization Soft Start Peak Current-Limit and Short-Circuit Protection Voltage Tracking Parallel Operation Power Good Overvoltage Protection Undervoltage Lockout Thermal Shutdown Applications Information ADIsimPower Design Tool Input Capacitor Selection Output Voltage Setting Voltage Conversion Limitations Current-Limit Setting Inductor Selection Output Capacitor Selection Low-Side Power Device Selection Programming UVLO Input Compensation Components Design Design Example Output Voltage Setting Current-Limit Setting Frequency Setting Inductor Selection Output Capacitor Selection Low-Side MOSFET Selection Compensation Components Soft Start Time Programming Input Capacitor Selection External Components Recommendation Typical Application Circuits Outline Dimensions Ordering Guide
TRACKING INPUT (TRKx PINS) TRKx Input Voltage Range 0 600 mV TRKx-to-FBx Offset Voltage TRKx = 0 mV to 500 mV −10 +10 mV TRKx Input Bias Current 100 nA POWER GOOD (PGOODx PINS) Power Good Rising Threshold 87 90 93 % Power Good Hysteresis 5 % Power Good Deglitch Time From FBx to PGOODx 16 Clock cycle PGOODx Leakage Current V = 5 V 0.1 1 µA PGOOD PGOODx Output Low Voltage I = 1 mA 50 100 mV PGOOD ENABLE (ENx PINS) ENx Rising Threshold 1.2 1.28 V ENx Falling Threshold 1.02 1.1 V ENx Source Current EN voltage below falling threshold 5 µA EN voltage above rising threshold 1 µA MODE (MODE PIN) Input High Voltage 1.3 V Input Low Voltage 0.4 V THERMAL Thermal Shutdown Threshold 150 °C Thermal Shutdown Hysteresis 15 °C 1 Tested in a feedback loop that adjusts VFB to achieve a specified voltage on the COMPx pin. 2 Pin-to-pin measurements. 3 Guaranteed by design. Rev. A | Page 5 of 32 Document Outline Features Applications Typical Application Circuit General Description Revision History Functional Block Diagram Specifications Absolute Maximum Ratings Thermal Resistance Boundary Condition ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme PWM Mode PFM Mode Precision Enable/Shutdown Separate Input Voltages Internal Regulator (INTVCC) Bootstrap Circuitry Low-Side Driver Oscillator Synchronization Soft Start Peak Current-Limit and Short-Circuit Protection Voltage Tracking Parallel Operation Power Good Overvoltage Protection Undervoltage Lockout Thermal Shutdown Applications Information ADIsimPower Design Tool Input Capacitor Selection Output Voltage Setting Voltage Conversion Limitations Current-Limit Setting Inductor Selection Output Capacitor Selection Low-Side Power Device Selection Programming UVLO Input Compensation Components Design Design Example Output Voltage Setting Current-Limit Setting Frequency Setting Inductor Selection Output Capacitor Selection Low-Side MOSFET Selection Compensation Components Soft Start Time Programming Input Capacitor Selection External Components Recommendation Typical Application Circuits Outline Dimensions Ordering Guide
