Datasheet ADP2311 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Dual 1 A, 18 V, Synchronous Step-Down Regulator with Fail-Safe Voltage Monitoring |
| Pages / Page | 20 / 5 — Data Sheet. ADP2311. Parameter. Symbol. Test Conditions/Comments. Min. … |
| Revision | B |
| File Format / Size | PDF / 698 Kb |
| Document Language | English |
Data Sheet. ADP2311. Parameter. Symbol. Test Conditions/Comments. Min. Typ. Max. Unit
Model Line for this Datasheet
Text Version of Document
link to page 20
Data Sheet ADP2311 Parameter Symbol Test Conditions/Comments Min Typ Max Unit
VOLTAGE MONITOR COMPARATOR VM2 pin VM2 Input Threshold Falling threshold 0.585 0.6 0.615 V VM2 Input Hysteresis 50 65 mV VM2 Leakage Current 10 50 nA POR TIMER TIMER pin TIMER Pin Pull-Up Current 3 µA WATCHDOG WDI and RSTO pins Reset Threshold Voltage Senses VFB2 93.5 95 96.5 % Reset Threshold Hysteresis 1.5 % Reset Timeout Period tRP 0.883 1 1.17 ms Watchdog Timeout Period tWD See the Ordering Guide Option 1 83 100 117 ms Option 2 41 50 58 ms Option 3 125 150 175 ms Option 4 167 200 233 ms WDI Pulse Width 80 ns WDI Input High Voltage 1.2 V WDI Input Low Voltage 0.4 V RSTO Output Low Voltage I = 1 mA 65 90 mV RSTO RSTO Leakage Current V = 5 V 0.1 1 µA RSTO THERMAL Thermal Shutdown Threshold 150 °C Thermal Shutdown Hysteresis 15 °C Rev. B | Page 5 of 20 Document Outline Features Applications Typical Application Circuit General Description Revision History Functional Block Diagram Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme Precision Enable/Shutdown Internal Regulator (VREG) Bootstrap Circuitry Soft Start Peak Current-Limit and Short-Circuit Protection Power-On Reset (POR) TIMER Pin Configuration Power Fail Comparator Voltage Monitor Comparator (VM2) Watchdog Timer Power-Up and Power-Down Sequence Overvoltage Protection (OVP) Undervoltage Lockout (UVLO) Thermal Shutdown Applications Information Input Capacitor Selection Output Voltage Setting Inductor Selection Output Capacitor Selection Application Circuit Outline Dimensions Ordering Guide
Data Sheet ADP2311 Parameter Symbol Test Conditions/Comments Min Typ Max Unit
VOLTAGE MONITOR COMPARATOR VM2 pin VM2 Input Threshold Falling threshold 0.585 0.6 0.615 V VM2 Input Hysteresis 50 65 mV VM2 Leakage Current 10 50 nA POR TIMER TIMER pin TIMER Pin Pull-Up Current 3 µA WATCHDOG WDI and RSTO pins Reset Threshold Voltage Senses VFB2 93.5 95 96.5 % Reset Threshold Hysteresis 1.5 % Reset Timeout Period tRP 0.883 1 1.17 ms Watchdog Timeout Period tWD See the Ordering Guide Option 1 83 100 117 ms Option 2 41 50 58 ms Option 3 125 150 175 ms Option 4 167 200 233 ms WDI Pulse Width 80 ns WDI Input High Voltage 1.2 V WDI Input Low Voltage 0.4 V RSTO Output Low Voltage I = 1 mA 65 90 mV RSTO RSTO Leakage Current V = 5 V 0.1 1 µA RSTO THERMAL Thermal Shutdown Threshold 150 °C Thermal Shutdown Hysteresis 15 °C Rev. B | Page 5 of 20 Document Outline Features Applications Typical Application Circuit General Description Revision History Functional Block Diagram Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme Precision Enable/Shutdown Internal Regulator (VREG) Bootstrap Circuitry Soft Start Peak Current-Limit and Short-Circuit Protection Power-On Reset (POR) TIMER Pin Configuration Power Fail Comparator Voltage Monitor Comparator (VM2) Watchdog Timer Power-Up and Power-Down Sequence Overvoltage Protection (OVP) Undervoltage Lockout (UVLO) Thermal Shutdown Applications Information Input Capacitor Selection Output Voltage Setting Inductor Selection Output Capacitor Selection Application Circuit Outline Dimensions Ordering Guide
