Datasheet ADP2147 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | Compact, 800 mA, 3 MHz, Simple DVS, Buck Regulator |
| 页数 / 页 | 16 / 2 — ADP2147. TABLE OF CONTENTS. REVISION HISTORY. 5/11—Revision 0: Initial … |
| 文件格式/大小 | PDF / 562 Kb |
| 文件语言 | 英语 |
ADP2147. TABLE OF CONTENTS. REVISION HISTORY. 5/11—Revision 0: Initial Version
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ADP2147 TABLE OF CONTENTS
Features .. 1 Enable/Shutdown ... 11 Applications... 1 Simple Dynamic Voltage Scaling (DVS) ... 12 General Description ... 1 Short-Circuit Protection.. 12 Typical Applications Circuit.. 1 Undervoltage Lockout ... 12 Revision History ... 2 Thermal Protection.. 12 Specifications... 3 Soft Start .. 12 Input and Output Capacitor, Recommended Current Limit .. 12 Specifications .. 3 100% Duty Operation.. 12 Absolute Maximum Ratings.. 4 Applications Information .. 13 Thermal Data .. 4 External Component Selection .. 13 Thermal Resistance .. 4 Thermal Considerations.. 14 ESD Caution.. 4 PCB Layout Guidelines.. 14 Pin Configuration and Function Descriptions... 5 Evaluation Board .. 15 Typical Performance Characteristics ... 6 Evaluation Board Layout... 15 Theory of Operation .. 11 Outline Dimensions ... 16 Control Scheme .. 11 Ordering Guide .. 16 PWM Mode... 11 Power Save Mode.. 11
REVISION HISTORY 5/11—Revision 0: Initial Version
Rev. 0 | Page 2 of 16 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATIONS CIRCUIT TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CONTROL SCHEME PWM MODE POWER SAVE MODE Power Save Mode Current Threshold ENABLE/SHUTDOWN SIMPLE DYNAMIC VOLTAGE SCALING (DVS) SHORT-CIRCUIT PROTECTION UNDERVOLTAGE LOCKOUT THERMAL PROTECTION SOFT START CURRENT LIMIT 100% DUTY OPERATION APPLICATIONS INFORMATION EXTERNAL COMPONENT SELECTION Inductor Output Capacitor THERMAL CONSIDERATIONS PCB LAYOUT GUIDELINES EVALUATION BOARD EVALUATION BOARD LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE
ADP2147 TABLE OF CONTENTS
Features .. 1 Enable/Shutdown ... 11 Applications... 1 Simple Dynamic Voltage Scaling (DVS) ... 12 General Description ... 1 Short-Circuit Protection.. 12 Typical Applications Circuit.. 1 Undervoltage Lockout ... 12 Revision History ... 2 Thermal Protection.. 12 Specifications... 3 Soft Start .. 12 Input and Output Capacitor, Recommended Current Limit .. 12 Specifications .. 3 100% Duty Operation.. 12 Absolute Maximum Ratings.. 4 Applications Information .. 13 Thermal Data .. 4 External Component Selection .. 13 Thermal Resistance .. 4 Thermal Considerations.. 14 ESD Caution.. 4 PCB Layout Guidelines.. 14 Pin Configuration and Function Descriptions... 5 Evaluation Board .. 15 Typical Performance Characteristics ... 6 Evaluation Board Layout... 15 Theory of Operation .. 11 Outline Dimensions ... 16 Control Scheme .. 11 Ordering Guide .. 16 PWM Mode... 11 Power Save Mode.. 11
REVISION HISTORY 5/11—Revision 0: Initial Version
Rev. 0 | Page 2 of 16 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATIONS CIRCUIT TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CONTROL SCHEME PWM MODE POWER SAVE MODE Power Save Mode Current Threshold ENABLE/SHUTDOWN SIMPLE DYNAMIC VOLTAGE SCALING (DVS) SHORT-CIRCUIT PROTECTION UNDERVOLTAGE LOCKOUT THERMAL PROTECTION SOFT START CURRENT LIMIT 100% DUTY OPERATION APPLICATIONS INFORMATION EXTERNAL COMPONENT SELECTION Inductor Output Capacitor THERMAL CONSIDERATIONS PCB LAYOUT GUIDELINES EVALUATION BOARD EVALUATION BOARD LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE