Datasheet ADP5034 (Analog Devices) - 3
| Fabricante | Analog Devices |
| Descripción | Dual 3 MHz, 1200 mA Buck Regulators with Two 300 mA LDOs |
| Páginas / Página | 28 / 3 — Data Sheet. ADP5034. REVISION HISTORY 5/13—Rev. D to Rev. E. 1/13—Rev. C … |
| Revisión | E |
| Formato / tamaño de archivo | PDF / 760 Kb |
| Idioma del documento | Inglés |
Data Sheet. ADP5034. REVISION HISTORY 5/13—Rev. D to Rev. E. 1/13—Rev. C to Rev. D. 11/12—Rev. B to Rev. C. 7/12—Rev. A to Rev. B
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Data Sheet ADP5034 REVISION HISTORY 5/13—Rev. D to Rev. E
Change to Table 1, Low UVLO Input Voltage Falling Parameter, Added Table 1; Renumbered Sequential y ... 1 Symbol Column ... 3 Changes to Figure 1... 1 Change to Table 2, Output Voltage Accuracy Parameter, Test Changes to NC Pin Description .. 8 Conditions/Comment Column ... 4 Changes to Figure 49 .. 19 Change to Table 2, Line Regulation Parameter, Symbols Changes to Figure 51 .. 21 Column ... 4 Changes to Figure 53 and Figure 54 ... 26 Change to Table 2, Load Regulation Parameter, Symbols Column ... 4
1/13—Rev. C to Rev. D
Changes to Table 2, Reversed the RPFET and RNFET Symbols for Changes to Ordering Guide ... 28 the SW On Resistance Parameter and Changes to Typ and Max
11/12—Rev. B to Rev. C
Columns ... 4 Changes to Table 3, Output Accuracy Parameter, Test Changes to Ordering Guide ... 28 Conditions/Comments Column ... 4
7/12—Rev. A to Rev. B
Changes to Table 3, Line Regulation Parameter, Symbols Added 28-Lead TSSOP Package Throughout ... 1 Column and Test Conditions/Comments Column .. 4 Changes to Output Voltage Accuracy Parameter, Added TSSOP Change to Table 3, Changes to Dropout Voltage Parameter and SW On Resistance Specifications, Changes to Voltage Feedback Added Specification to Dropout Voltage Parameter .. 5 Minimum and Maximum Values, and Changes to Active Pul - Change to Table 3, Endnote 3 .. 5 Down Conditions; Table 2 ... 5 Change to Table 4, BUCK1, BUCK2 Output Capacitor Changes to Output Voltage Accuracy Parameter and Voltage Parameter, Min Column Value .. 5 Feedback Minimum and Maximum Values in Table 3; Changes Change to Table 4, Endnote 1 .. 5 to Table 4 .. 6 Changes to Absolute Maximum Ratings, Table 5 ... 6 Added Thermal Resistance Values for TSSOP Package, Table 6 . 7 Changes to Table 7, Pin Function Descriptions .. 7 Added Figure 3 and TSSOP Pins to Table 7 .. 8 Changes to TPC Section ... 8 Changes to Figure 7, Figure 8, and Figure 9 .. 9 Moved Power Dissipation and Thermal Considerations Changes to Figure 10 .. 10 Section .. 22 Changes to Figure 18 Caption ... 11 Change to Equation 5 Where Statement .. 22 Changes to Figure 31 and Figure 32 ... 13 Change to Equation 6 ... 22 Changes to Figure 35 and Figure 39 Caption .. 14 Change to Undervoltage Lockout Section ... 16 Changes to Undervoltage Lockout Section .. 17 Changes to Figure 46 .. 16 Changes to Table 8 .. 20 Change to Figure 47 .. 17 Changes to Table 9 and Table 11 ... 21 Changes to LDO1/LDO2 Section ... 18 Changes to Equation 9 and Fol owing Paragraph ... 23 Changes to Output Capacitor Section and Table 8 ... 19 Added UG-349 to PCB Layout Guidelines Section .. 25 Change to VRIPPLE Equation, Table 9, and Figure 50.. 20 Changes to Table 12 .. 26 Changes to Input and Output Capacitor Properties Section .. 21 Updated Outline Dimensions .. 27 Changes to Equation 3 .. 22 Changes to Ordering Guide ... 28 Changes to Junction Temperature Section .. 23 Changes to LDO Regulator Power Dissipation Section ... 23
10/11—Rev. 0 to Rev. A
Changes to Figure 52 and Figure 53 ... 25 Change to Features Section .. 1 Moved Bill of Materials Section .. 25 Changes to General Description Section ... 1 Changes to Ordering Guide ... 26 Changes to Figure 1... 1
6/11—Revision 0: Initial Version
Rev. E | Page 3 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
Change to Table 1, Low UVLO Input Voltage Falling Parameter, Added Table 1; Renumbered Sequential y ... 1 Symbol Column ... 3 Changes to Figure 1... 1 Change to Table 2, Output Voltage Accuracy Parameter, Test Changes to NC Pin Description .. 8 Conditions/Comment Column ... 4 Changes to Figure 49 .. 19 Change to Table 2, Line Regulation Parameter, Symbols Changes to Figure 51 .. 21 Column ... 4 Changes to Figure 53 and Figure 54 ... 26 Change to Table 2, Load Regulation Parameter, Symbols Column ... 4
1/13—Rev. C to Rev. D
Changes to Table 2, Reversed the RPFET and RNFET Symbols for Changes to Ordering Guide ... 28 the SW On Resistance Parameter and Changes to Typ and Max
11/12—Rev. B to Rev. C
Columns ... 4 Changes to Table 3, Output Accuracy Parameter, Test Changes to Ordering Guide ... 28 Conditions/Comments Column ... 4
7/12—Rev. A to Rev. B
Changes to Table 3, Line Regulation Parameter, Symbols Added 28-Lead TSSOP Package Throughout ... 1 Column and Test Conditions/Comments Column .. 4 Changes to Output Voltage Accuracy Parameter, Added TSSOP Change to Table 3, Changes to Dropout Voltage Parameter and SW On Resistance Specifications, Changes to Voltage Feedback Added Specification to Dropout Voltage Parameter .. 5 Minimum and Maximum Values, and Changes to Active Pul - Change to Table 3, Endnote 3 .. 5 Down Conditions; Table 2 ... 5 Change to Table 4, BUCK1, BUCK2 Output Capacitor Changes to Output Voltage Accuracy Parameter and Voltage Parameter, Min Column Value .. 5 Feedback Minimum and Maximum Values in Table 3; Changes Change to Table 4, Endnote 1 .. 5 to Table 4 .. 6 Changes to Absolute Maximum Ratings, Table 5 ... 6 Added Thermal Resistance Values for TSSOP Package, Table 6 . 7 Changes to Table 7, Pin Function Descriptions .. 7 Added Figure 3 and TSSOP Pins to Table 7 .. 8 Changes to TPC Section ... 8 Changes to Figure 7, Figure 8, and Figure 9 .. 9 Moved Power Dissipation and Thermal Considerations Changes to Figure 10 .. 10 Section .. 22 Changes to Figure 18 Caption ... 11 Change to Equation 5 Where Statement .. 22 Changes to Figure 31 and Figure 32 ... 13 Change to Equation 6 ... 22 Changes to Figure 35 and Figure 39 Caption .. 14 Change to Undervoltage Lockout Section ... 16 Changes to Undervoltage Lockout Section .. 17 Changes to Figure 46 .. 16 Changes to Table 8 .. 20 Change to Figure 47 .. 17 Changes to Table 9 and Table 11 ... 21 Changes to LDO1/LDO2 Section ... 18 Changes to Equation 9 and Fol owing Paragraph ... 23 Changes to Output Capacitor Section and Table 8 ... 19 Added UG-349 to PCB Layout Guidelines Section .. 25 Change to VRIPPLE Equation, Table 9, and Figure 50.. 20 Changes to Table 12 .. 26 Changes to Input and Output Capacitor Properties Section .. 21 Updated Outline Dimensions .. 27 Changes to Equation 3 .. 22 Changes to Ordering Guide ... 28 Changes to Junction Temperature Section .. 23 Changes to LDO Regulator Power Dissipation Section ... 23
10/11—Rev. 0 to Rev. A
Changes to Figure 52 and Figure 53 ... 25 Change to Features Section .. 1 Moved Bill of Materials Section .. 25 Changes to General Description Section ... 1 Changes to Ordering Guide ... 26 Changes to Figure 1... 1
6/11—Revision 0: Initial Version
Rev. E | Page 3 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