Datasheet ADP5037 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | Dual 3 MHz, 800 mA Buck Regulators with Two 300 mA LDOs |
| Pages / Page | 28 / 2 — ADP5037. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 5/13—Rev. C to … |
| Revision | D |
| File Format / Size | PDF / 770 Kb |
| Document Language | English |
ADP5037. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 5/13—Rev. C to Rev. D. 1/12—Rev. 0 to Rev. A. 1/13—Rev. B to Rev. C
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ADP5037 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 LDO1 and LDO2 .. 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 LDO1 and LDO2 Specifications ... 4 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 5/13—Rev. C to Rev. D
Moved Power Dissipation and Thermal Considerations Added Table 1; Renumbered Sequential y .. 1 Section .. 22 Changes to Figure 1 .. 1 Changes to Buck Regulator Power Dissipation Section .. 22 Changes to NC Pin Description ... 7 Changes to PCB Layout Guidelines Section ... 24 Changes to Figure 48 .. 18 Changes to Ordering Guide .. 27 Changes to Figure 50 .. 20
1/12—Rev. 0 to Rev. A
Changes to Figure 52 and Figure 53 ... 25 Changes to Features Section and Figure 1 ... 1
1/13—Rev. B to Rev. C
Changes to Table 2 and Table 3.. 4 Changes to Figure 9 .. 9 Changes to Table 4 ... 5 Changes to Ordering Guide .. 27 Changes to Table 5 ... 6 Changes to Table 7 ... 7
8/12—Rev. A to Rev. B
Changes to Figure 34 .. 13 Changes to Regulator Accuracy, Features Section ... 1 Changes to Buck Regulator Power Dissipation Section .. 15 Changes to Output Voltage Accuracy, Table 2 and Voltage Changes to Undervoltage Lockout Section ... 18 Feedback, Table 2 .. 4 Changes to LDO1 and LDO2 Section ... 20 Changes to Output Voltage Accuracy, Table 3 and Voltage Changes to Table 9 .. 22 Feedback, Table 3 .. 4 Changes to Figure 52 and Figure 53 .. 25 Changes to Figure 6, Figure 7, and Figure 8.. 8 Changes to Ordering Guide .. 27 Changes to Figure 9 to Figure 14 .. 9 Changes to Figure 30 and Figure 31 ... 12
8/11—Revision 0: Initial Version
Changes to Figure 34 and Figure 38 Caption ... 13 Changes to Undervoltage Lockout Section ... 16 Rev. D | 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
ADP5037 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 LDO1 and LDO2 .. 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 LDO1 and LDO2 Specifications ... 4 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 5/13—Rev. C to Rev. D
Moved Power Dissipation and Thermal Considerations Added Table 1; Renumbered Sequential y .. 1 Section .. 22 Changes to Figure 1 .. 1 Changes to Buck Regulator Power Dissipation Section .. 22 Changes to NC Pin Description ... 7 Changes to PCB Layout Guidelines Section ... 24 Changes to Figure 48 .. 18 Changes to Ordering Guide .. 27 Changes to Figure 50 .. 20
1/12—Rev. 0 to Rev. A
Changes to Figure 52 and Figure 53 ... 25 Changes to Features Section and Figure 1 ... 1
1/13—Rev. B to Rev. C
Changes to Table 2 and Table 3.. 4 Changes to Figure 9 .. 9 Changes to Table 4 ... 5 Changes to Ordering Guide .. 27 Changes to Table 5 ... 6 Changes to Table 7 ... 7
8/12—Rev. A to Rev. B
Changes to Figure 34 .. 13 Changes to Regulator Accuracy, Features Section ... 1 Changes to Buck Regulator Power Dissipation Section .. 15 Changes to Output Voltage Accuracy, Table 2 and Voltage Changes to Undervoltage Lockout Section ... 18 Feedback, Table 2 .. 4 Changes to LDO1 and LDO2 Section ... 20 Changes to Output Voltage Accuracy, Table 3 and Voltage Changes to Table 9 .. 22 Feedback, Table 3 .. 4 Changes to Figure 52 and Figure 53 .. 25 Changes to Figure 6, Figure 7, and Figure 8.. 8 Changes to Ordering Guide .. 27 Changes to Figure 9 to Figure 14 .. 9 Changes to Figure 30 and Figure 31 ... 12
8/11—Revision 0: Initial Version
Changes to Figure 34 and Figure 38 Caption ... 13 Changes to Undervoltage Lockout Section ... 16 Rev. D | 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
