Datasheet ADP5042 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | Micro PMU with 0.8 A Buck, Two 300 mA LDOs, Supervisory, Watchdog and Manual Reset |
| 页数 / 页 | 30 / 2 — ADP5042. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 5/2018—Rev. A to … |
| 修订版 | B |
| 文件格式/大小 | PDF / 1.6 Mb |
| 文件语言 | 英语 |
ADP5042. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 5/2018—Rev. A to Rev. B. 10/2011—Rev. 0 to Rev. A
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ADP5042 Data Sheet TABLE OF CONTENTS
Features .. 1 Power Management Unit ... 18 High Level Block Diagram .. 1 Buck Section .. 19 General Description ... 1 LDO Section ... 20 Revision History ... 2 Supervisory Section ... 20 Specifications ... 3 Applications Information .. 23 General Specification ... 3 Buck External Component Selection ... 23 Supervisory Specification .. 3 LDO Capacitor Selection .. 24 Buck Specifications ... 5 Supervisory Section ... 25 LDO1, LDO2 Specifications ... 5 PCB Layout Guidelines .. 26 Input and Output Capacitor, Recommended Specifications .. 6 Evaluation Board Schematics and Artwork .. 27 Absolute Maximum Ratings .. 7 Suggested Layout .. 27 Thermal Data .. 7 Bill of Materials ... 28 Thermal Resistance .. 7 Application Diagram ... 28 ESD Caution .. 7 Factory Programmable Options ... 29 Pin Configuration and Function Descriptions ... 8 Outline Dimensions ... 30 Typical Performance Characteristics ... 9 Ordering Guide .. 30 Theory of Operation .. 18
REVISION HISTORY 5/2018—Rev. A to Rev. B
Updated Outline Dimensions ... 30 Changes to Ordering Guide .. 30
10/2011—Rev. 0 to Rev. A
Updated Outline Dimensions ... 30 Changes to Ordering Guide .. 30
12/2010—Revision 0: Initial Version
Rev. B | Page 2 of 30 Document Outline FEATURES HIGH LEVEL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS GENERAL SPECIFICATION SUPERVISORY SPECIFICATION BUCK SPECIFICATIONS LDO1, LDO2 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 POWER MANAGEMENT UNIT Thermal Protection Undervoltage Lockout Enable/Shutdown BUCK SECTION Control Scheme PWM Mode Power Save Mode (PSM) PSM Current Threshold Short-Circuit Protection Soft Start Current Limit 100% Duty Operation LDO SECTION SUPERVISORY SECTION Reset Output Manual Reset Input Watchdog 1 Input Watchdog 2 Input Watchdog Status Indicator APPLICATIONS INFORMATION BUCK EXTERNAL COMPONENT SELECTION Inductor Output Capacitor Input Capacitor LDO CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties SUPERVISORY SECTION Watchdog 1 Input Current Negative-Going VCC Transients Watchdog Software Considerations PCB LAYOUT GUIDELINES EVALUATION BOARD SCHEMATICS AND ARTWORK SUGGESTED LAYOUT BILL OF MATERIALS APPLICATION DIAGRAM FACTORY PROGRAMMABLE OPTIONS OUTLINE DIMENSIONS ORDERING GUIDE
ADP5042 Data Sheet TABLE OF CONTENTS
Features .. 1 Power Management Unit ... 18 High Level Block Diagram .. 1 Buck Section .. 19 General Description ... 1 LDO Section ... 20 Revision History ... 2 Supervisory Section ... 20 Specifications ... 3 Applications Information .. 23 General Specification ... 3 Buck External Component Selection ... 23 Supervisory Specification .. 3 LDO Capacitor Selection .. 24 Buck Specifications ... 5 Supervisory Section ... 25 LDO1, LDO2 Specifications ... 5 PCB Layout Guidelines .. 26 Input and Output Capacitor, Recommended Specifications .. 6 Evaluation Board Schematics and Artwork .. 27 Absolute Maximum Ratings .. 7 Suggested Layout .. 27 Thermal Data .. 7 Bill of Materials ... 28 Thermal Resistance .. 7 Application Diagram ... 28 ESD Caution .. 7 Factory Programmable Options ... 29 Pin Configuration and Function Descriptions ... 8 Outline Dimensions ... 30 Typical Performance Characteristics ... 9 Ordering Guide .. 30 Theory of Operation .. 18
REVISION HISTORY 5/2018—Rev. A to Rev. B
Updated Outline Dimensions ... 30 Changes to Ordering Guide .. 30
10/2011—Rev. 0 to Rev. A
Updated Outline Dimensions ... 30 Changes to Ordering Guide .. 30
12/2010—Revision 0: Initial Version
Rev. B | Page 2 of 30 Document Outline FEATURES HIGH LEVEL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS GENERAL SPECIFICATION SUPERVISORY SPECIFICATION BUCK SPECIFICATIONS LDO1, LDO2 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 POWER MANAGEMENT UNIT Thermal Protection Undervoltage Lockout Enable/Shutdown BUCK SECTION Control Scheme PWM Mode Power Save Mode (PSM) PSM Current Threshold Short-Circuit Protection Soft Start Current Limit 100% Duty Operation LDO SECTION SUPERVISORY SECTION Reset Output Manual Reset Input Watchdog 1 Input Watchdog 2 Input Watchdog Status Indicator APPLICATIONS INFORMATION BUCK EXTERNAL COMPONENT SELECTION Inductor Output Capacitor Input Capacitor LDO CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties SUPERVISORY SECTION Watchdog 1 Input Current Negative-Going VCC Transients Watchdog Software Considerations PCB LAYOUT GUIDELINES EVALUATION BOARD SCHEMATICS AND ARTWORK SUGGESTED LAYOUT BILL OF MATERIALS APPLICATION DIAGRAM FACTORY PROGRAMMABLE OPTIONS OUTLINE DIMENSIONS ORDERING GUIDE