Datasheet ADP2119, ADP2120 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | 1.25A, 1.2MHz Synchronous Step-Down DC-to-DC Regulator |
| 页数 / 页 | 24 / 2 — ADP2119/ADP2120. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY … |
| 修订版 | A |
| 文件格式/大小 | PDF / 893 Kb |
| 文件语言 | 英语 |
ADP2119/ADP2120. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 8/12—Rev. 0 to Rev. A. 6/10—Revision 0: Initial Version
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ADP2119/ADP2120 Data Sheet TABLE OF CONTENTS
Features .. 1 Integrated Soft Start ... 16 Applications ... 1 Tracking ... 17 Typical Application Circuit ... 1 Oscillator and Synchronization .. 17 General Description ... 1 Current Limit and Short-Circuit Protection .. 17 Revision History ... 2 Overvoltage Protection (OVP) ... 17 Specifications ... 3 Undervoltage Lockout (UVLO) ... 17 Absolute Maximum Ratings .. 5 Thermal Shutdown .. 17 Thermal Resistance .. 5 Power Good (PGOOD) ... 17 Boundary Condition .. 5 Applications Information .. 18 ESD Caution .. 5 ADIsimPower Design Tool ... 18 Pin Configuration and Function Descriptions ... 6 Output Voltage Selection ... 18 Typical Performance Characteristics ... 7 Inductor Selection .. 18 Functional Block Diagram .. 15 Output Capacitor Selection... 18 Theory of Operation .. 16 Input Capacitor Selection .. 19 Control Scheme .. 16 Voltage Tracking ... 19 PWM Mode Operation .. 16 Typical Application Circuits ... 20 PFM Mode Operation .. 16 Outline Dimensions ... 22 Slope Compensation .. 16 Ordering Guide .. 22 Enable/Shutdown ... 16
REVISION HISTORY 8/12—Rev. 0 to Rev. A
Change to Features Section ... 1 Added ADIsimPower Design Tool Section ... 18 Updated Outline Dimensions ... 22 Changes to Ordering Guide .. 22
6/10—Revision 0: Initial Version
Rev. A | Page 2 of 24 Document Outline Features Applications Typical Application Circuit General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance Boundary Condition ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Functional Block Diagram Theory of Operation Control Scheme PWM Mode Operation PFM Mode Operation Slope Compensation Enable/Shutdown Integrated Soft Start Tracking Oscillator and Synchronization Current Limit and Short-Circuit Protection Overvoltage Protection (OVP) Undervoltage Lockout (UVLO) Thermal Shutdown Power Good (PGOOD) Applications Information ADIsimPower Design Tool Output Voltage Selection Inductor Selection Output Capacitor Selection Input Capacitor Selection Voltage Tracking Typical Application Circuits Outline Dimensions Ordering Guide
ADP2119/ADP2120 Data Sheet TABLE OF CONTENTS
Features .. 1 Integrated Soft Start ... 16 Applications ... 1 Tracking ... 17 Typical Application Circuit ... 1 Oscillator and Synchronization .. 17 General Description ... 1 Current Limit and Short-Circuit Protection .. 17 Revision History ... 2 Overvoltage Protection (OVP) ... 17 Specifications ... 3 Undervoltage Lockout (UVLO) ... 17 Absolute Maximum Ratings .. 5 Thermal Shutdown .. 17 Thermal Resistance .. 5 Power Good (PGOOD) ... 17 Boundary Condition .. 5 Applications Information .. 18 ESD Caution .. 5 ADIsimPower Design Tool ... 18 Pin Configuration and Function Descriptions ... 6 Output Voltage Selection ... 18 Typical Performance Characteristics ... 7 Inductor Selection .. 18 Functional Block Diagram .. 15 Output Capacitor Selection... 18 Theory of Operation .. 16 Input Capacitor Selection .. 19 Control Scheme .. 16 Voltage Tracking ... 19 PWM Mode Operation .. 16 Typical Application Circuits ... 20 PFM Mode Operation .. 16 Outline Dimensions ... 22 Slope Compensation .. 16 Ordering Guide .. 22 Enable/Shutdown ... 16
REVISION HISTORY 8/12—Rev. 0 to Rev. A
Change to Features Section ... 1 Added ADIsimPower Design Tool Section ... 18 Updated Outline Dimensions ... 22 Changes to Ordering Guide .. 22
6/10—Revision 0: Initial Version
Rev. A | Page 2 of 24 Document Outline Features Applications Typical Application Circuit General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance Boundary Condition ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Functional Block Diagram Theory of Operation Control Scheme PWM Mode Operation PFM Mode Operation Slope Compensation Enable/Shutdown Integrated Soft Start Tracking Oscillator and Synchronization Current Limit and Short-Circuit Protection Overvoltage Protection (OVP) Undervoltage Lockout (UVLO) Thermal Shutdown Power Good (PGOOD) Applications Information ADIsimPower Design Tool Output Voltage Selection Inductor Selection Output Capacitor Selection Input Capacitor Selection Voltage Tracking Typical Application Circuits Outline Dimensions Ordering Guide