Datasheet ADM7172 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | 6.5 V, 2 A, Ultralow Noise, High PSRR, Fast Transient Response CMOS LDO |
| 页数 / 页 | 23 / 2 — ADM7172. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 8/2019—Rev. C to … |
| 修订版 | D |
| 文件格式/大小 | PDF / 1.1 Mb |
| 文件语言 | 英语 |
ADM7172. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 8/2019—Rev. C to Rev. D. 12/2014—Rev. A to Rev. B
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ADM7172 Data Sheet TABLE OF CONTENTS
Features .. 1 ADIsimPower Design Tool ... 17 Applications ... 1 Capacitor Selection .. 17 General Description ... 1 Programmable Precision Enable .. 18 Typical Application Circuit ... 1 Undervoltage Lockout ... 18 Revision History ... 2 Soft Start .. 18 Specifications ... 3 Noise Reduction of the ADM7172 in Adjustable Mode ... 19 Input and Output Capacitor, Recommended Specifications .. 4 Effect of Noise Reduction on Start-Up Time ... 19 Absolute Maximum Ratings .. 5 Current-Limit and Thermal Overload Protection ... 20 Thermal Data .. 5 Thermal Considerations .. 20 Thermal Resistance .. 5 Typical Applications Circuits .. 21 ESD Caution .. 5 Printed Circuit Board Layout Considerations .. 22 Pin Configuration and Function Descriptions ... 6 Outline Dimensions ... 23 Typical Performance Characteristics ... 7 Ordering Guide .. 23 Theory of Operation .. 16 Applications Information .. 17
REVISION HISTORY 8/2019—Rev. C to Rev. D 12/2014—Rev. A to Rev. B
Change to Figure 33 Caption .. 11 Changes to Figure 2 ... 1 Deleted Figure 34; Renumbered Sequentially... 12 Changes to Figure 48 to Figure 51 .. 14 Changes to Figure 38 Caption and Figure 39 Caption .. 12 Changes to Figure 52 to Figure 55 .. 15 Changes to Figure 55 .. 16 Changes to Figure 58 .. 17 Updated Outline Dimensions ... 23 Changes to Ordering Guide .. 23
8/2014—Rev. 0 to Rev. A
Changes to Ordering Guide .. 23
8/2015—Rev. B to Rev. C
Change to Soft Start Section.. 19
7/2014—Revision 0: Initial Version
Added Effect of Noise Reduction on Start-Up Time Section ... 19 Rev. D | Page 2 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION REVISION HISTORY 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 APPLICATIONS INFORMATION ADISIMPOWER DESIGN TOOL CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties PROGRAMMABLE PRECISION ENABLE UNDERVOLTAGE LOCKOUT SOFT START NOISE REDUCTION OF THE ADM7172 IN ADJUSTABLE MODE EFFECT OF NOISE REDUCTION ON START-UP TIME CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS TYPICAL APPLICATIONS CIRCUITS PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE
ADM7172 Data Sheet TABLE OF CONTENTS
Features .. 1 ADIsimPower Design Tool ... 17 Applications ... 1 Capacitor Selection .. 17 General Description ... 1 Programmable Precision Enable .. 18 Typical Application Circuit ... 1 Undervoltage Lockout ... 18 Revision History ... 2 Soft Start .. 18 Specifications ... 3 Noise Reduction of the ADM7172 in Adjustable Mode ... 19 Input and Output Capacitor, Recommended Specifications .. 4 Effect of Noise Reduction on Start-Up Time ... 19 Absolute Maximum Ratings .. 5 Current-Limit and Thermal Overload Protection ... 20 Thermal Data .. 5 Thermal Considerations .. 20 Thermal Resistance .. 5 Typical Applications Circuits .. 21 ESD Caution .. 5 Printed Circuit Board Layout Considerations .. 22 Pin Configuration and Function Descriptions ... 6 Outline Dimensions ... 23 Typical Performance Characteristics ... 7 Ordering Guide .. 23 Theory of Operation .. 16 Applications Information .. 17
REVISION HISTORY 8/2019—Rev. C to Rev. D 12/2014—Rev. A to Rev. B
Change to Figure 33 Caption .. 11 Changes to Figure 2 ... 1 Deleted Figure 34; Renumbered Sequentially... 12 Changes to Figure 48 to Figure 51 .. 14 Changes to Figure 38 Caption and Figure 39 Caption .. 12 Changes to Figure 52 to Figure 55 .. 15 Changes to Figure 55 .. 16 Changes to Figure 58 .. 17 Updated Outline Dimensions ... 23 Changes to Ordering Guide .. 23
8/2014—Rev. 0 to Rev. A
Changes to Ordering Guide .. 23
8/2015—Rev. B to Rev. C
Change to Soft Start Section.. 19
7/2014—Revision 0: Initial Version
Added Effect of Noise Reduction on Start-Up Time Section ... 19 Rev. D | Page 2 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION REVISION HISTORY 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 APPLICATIONS INFORMATION ADISIMPOWER DESIGN TOOL CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties PROGRAMMABLE PRECISION ENABLE UNDERVOLTAGE LOCKOUT SOFT START NOISE REDUCTION OF THE ADM7172 IN ADJUSTABLE MODE EFFECT OF NOISE REDUCTION ON START-UP TIME CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS TYPICAL APPLICATIONS CIRCUITS PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE