Datasheet ADP5023 (Analog Devices) - 2
| Fabricante | Analog Devices |
| Descripción | Dual 3 MHz, 800 mA Buck Regulator with One 300 mA LDO |
| Páginas / Página | 28 / 2 — ADP5023. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 7/13—Rev. C to … |
| Revisión | E |
| Formato / tamaño de archivo | PDF / 892 Kb |
| Idioma del documento | Inglés |
ADP5023. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 7/13—Rev. C to Rev. D. 1/12—Rev. 0 to Rev. A. 1/13—Rev. B to Rev. C
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ADP5023 Data Sheet TABLE OF CONTENTS
Features .. 1 Theory of Operation .. 15 Applications ... 1 Power Management Unit ... 15 General Description ... 1 BUCK1 and BUCK2 .. 17 Typical Application Circuit ... 1 LDO .. 18 Revision History ... 2 Applications Information .. 19 Specifications ... 3 Buck External Component Selection ... 19 General Specifications ... 3 LDO External Component Selection... 21 BUCK1 and BUCK2 Specifications ... 4 Power Dissipation and Thermal Considerations ... 22 LDO Specifications .. 5 Buck Regulator Power Dissipation .. 22 Input and Output Capacitor, Recommended Specifications .. 5 Junction Temperature .. 23 Absolute Maximum Ratings .. 6 PCB Layout Guidelines .. 24 Thermal Resistance .. 6 Typical Application Schematics .. 25 ESD Caution .. 6 Bill of Materials ... 26 Pin Configuration and Function Descriptions ... 7 Outline Dimensions ... 27 Typical Performance Characteristics ... 8 Ordering Guide .. 27
REVISION HISTORY 7/13—Rev. C to Rev. D 1/12—Rev. 0 to Rev. A
Added Table 1; Renumbered Sequential y .. 1 Changes to Features Section .. 1 Changes to Figure 1 .. 1 Changes to Table 2 ... 4 Changes to NC Pin Description ... 7 Changes to Table 3 and Table 4.. 5 Changes to Figure 48 .. 18 Changes to Table 5 ... 6 Changes to Figure 50 .. 20 Changes to Table 7 ... 7 Changes to Figure 52 and Figure 53 ... 25 Changes to Figure 34 .. 13
1/13—Rev. B to Rev. C
Changes to Buck Regulator Power Dissipation Section .. 15 Changes to Undervoltage Lockout Section ... 18 Changes to Figure 9 .. 10 Changes to LDO Section and Figure 48 .. 20 Changes to Ordering Guide .. 28 Changes to Table 9 .. 22
9/12—Rev. A to Rev. B
Changes to Figure 52 .. 25 Changes to Feature Section ... 1 Changes to Ordering Guide .. 27 Changes to BUCK Output Voltage Accuracy Parameter and
8/11—Revision 0: Initial Version
Voltage Feedback Parameter, Table 2 ... 4 Changes to LDO Output Voltage Accuracy Parameter and Voltage Feedback Parameter, Table 3 ... 5 Changes to Figure 6 to Figure 8 .. 8 Changes to Figure 30 and Figure 31 ... 12 Changes to Figure 34 and Figure 38 Caption ... 13 Changes to Undervoltage Lockout Section ... 16 Moved Power Dissipation and Thermal Consideration Section ... 22 Changes to Buck Regulator Power Dissipation Section .. 22 Updated Outline Dimensions ... 27 Rev. D | Page 2 of 28 Document Outline Features Applications General Description Typical Application Circuit Revision History Specifications General Specifications BUCK1 and BUCK2 Specifications LDO 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 LDO 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
ADP5023 Data Sheet TABLE OF CONTENTS
Features .. 1 Theory of Operation .. 15 Applications ... 1 Power Management Unit ... 15 General Description ... 1 BUCK1 and BUCK2 .. 17 Typical Application Circuit ... 1 LDO .. 18 Revision History ... 2 Applications Information .. 19 Specifications ... 3 Buck External Component Selection ... 19 General Specifications ... 3 LDO External Component Selection... 21 BUCK1 and BUCK2 Specifications ... 4 Power Dissipation and Thermal Considerations ... 22 LDO Specifications .. 5 Buck Regulator Power Dissipation .. 22 Input and Output Capacitor, Recommended Specifications .. 5 Junction Temperature .. 23 Absolute Maximum Ratings .. 6 PCB Layout Guidelines .. 24 Thermal Resistance .. 6 Typical Application Schematics .. 25 ESD Caution .. 6 Bill of Materials ... 26 Pin Configuration and Function Descriptions ... 7 Outline Dimensions ... 27 Typical Performance Characteristics ... 8 Ordering Guide .. 27
REVISION HISTORY 7/13—Rev. C to Rev. D 1/12—Rev. 0 to Rev. A
Added Table 1; Renumbered Sequential y .. 1 Changes to Features Section .. 1 Changes to Figure 1 .. 1 Changes to Table 2 ... 4 Changes to NC Pin Description ... 7 Changes to Table 3 and Table 4.. 5 Changes to Figure 48 .. 18 Changes to Table 5 ... 6 Changes to Figure 50 .. 20 Changes to Table 7 ... 7 Changes to Figure 52 and Figure 53 ... 25 Changes to Figure 34 .. 13
1/13—Rev. B to Rev. C
Changes to Buck Regulator Power Dissipation Section .. 15 Changes to Undervoltage Lockout Section ... 18 Changes to Figure 9 .. 10 Changes to LDO Section and Figure 48 .. 20 Changes to Ordering Guide .. 28 Changes to Table 9 .. 22
9/12—Rev. A to Rev. B
Changes to Figure 52 .. 25 Changes to Feature Section ... 1 Changes to Ordering Guide .. 27 Changes to BUCK Output Voltage Accuracy Parameter and
8/11—Revision 0: Initial Version
Voltage Feedback Parameter, Table 2 ... 4 Changes to LDO Output Voltage Accuracy Parameter and Voltage Feedback Parameter, Table 3 ... 5 Changes to Figure 6 to Figure 8 .. 8 Changes to Figure 30 and Figure 31 ... 12 Changes to Figure 34 and Figure 38 Caption ... 13 Changes to Undervoltage Lockout Section ... 16 Moved Power Dissipation and Thermal Consideration Section ... 22 Changes to Buck Regulator Power Dissipation Section .. 22 Updated Outline Dimensions ... 27 Rev. D | Page 2 of 28 Document Outline Features Applications General Description Typical Application Circuit Revision History Specifications General Specifications BUCK1 and BUCK2 Specifications LDO 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 LDO 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