Datasheet ADP5034 (Analog Devices) - 2

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ADP5034 Data Sheet TABLE OF CONTENTS
Features .. 1 Theory of Operation .. 16 Applications ... 1 Power Management Unit ... 16 General Description ... 1 BUCK1 and BUCK2 .. 18 Typical Application Circuit ... 1 LDO1 and LDO2 .. 19 Revision History ... 3 Applications Information .. 20 Specifications ... 4 Buck External Component Selection ... 20 General Specifications ... 4 LDO External Component Selection... 22 BUCK1 and BUCK2 Specifications ... 5 Power Dissipation and Thermal Considerations ... 23 LDO1 and LDO2 Specifications ... 5 Buck Regulator Power Dissipation .. 23 Input and Output Capacitor, Recommended Specifications .. 6 Junction Temperature .. 24 Absolute Maximum Ratings .. 7 PCB Layout Guidelines .. 25 Thermal Resistance .. 7 Typical Application Schematics .. 26 ESD Caution .. 7 Bill of Materials ... 26 Pin Configuration and Function Descriptions ... 8 Outline Dimensions ... 27 Typical Performance Characteristics ... 9 Ordering Guide .. 28 Rev. E | Page 2 of 28 Document Outline Features Applications General Description Typical Application Circuit Revision History Specifications General Specifications BUCK1 and BUCK2 Specifications LDO1 and LDO2 Specifications Input and Output Capacitor, Recommended Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Power Management Unit Thermal Protection Undervoltage Lockout Enable/Shutdown BUCK1 and BUCK2 Control Scheme PWM Mode Power Save Mode (PSM) PSM Current Threshold Oscillator/Phasing of Inductor Switching Short-Circuit Protection Soft Start Current Limit 100% Duty Operation Active Pull-Downs LDO1 and LDO2 Applications Information Buck External Component Selection Feedback Resistors Inductor Output Capacitor Input Capacitor LDO External Component Selection Feedback Resistors Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties Power Dissipation and Thermal Considerations Buck Regulator Power Dissipation LDO Regulator Power Dissipation Junction Temperature PCB Layout Guidelines Typical Application Schematics Bill of Materials Outline Dimensions Ordering Guide