Datasheet ADP2302, ADP2303 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 3A, 700KHz NonSynchronous Step-Down DC-DC Switching Regulator |
| 页数 / 页 | 28 / 8 — ADP2302/ADP2303. Data Sheet. 810. 812. 790. 770. 808. 750. V 806. m ( … |
| 修订版 | A |
| 文件格式/大小 | PDF / 1.0 Mb |
| 文件语言 | 英语 |
ADP2302/ADP2303. Data Sheet. 810. 812. 790. 770. 808. 750. V 806. m ( 804. 730. kHz Y (. 802. 710. LTAG. O 800. 690. UE Q. 798. E 670. R F. 796. DBACK V. 650
该数据表的模型线
文件文字版本
ADP2302/ADP2303 Data Sheet 810 812 790 810 770 808 ) 750 V 806 ) m ( 804 730 E kHz Y ( 802 710 LTAG NC O 800 690 UE Q 798 E 670 R F 796 DBACK V 650 E E F 794 630 792 610 790 590 788 –40 –20 0 20 40 60 80 100 120
19 -016
–40 –20 0 20 40 60 80 100 120
0 3-
TEMPERATURE (°C)
833 08
TEMPERATURE (°C)
883 0 Figure 16. Frequency vs. Temperature Figure 19. 0.8 V Feedback Voltage vs. Temperature
4.4 6.4 4.2 6.2 4.0 6.0 (A) (A) IT 3.8 IT 5.8 IM IM L L 3.6 5.6 NT NT 3.4 5.4 URRE 3.2 5.2 AK CURRE AK C E E P P 3.0 5.0 2.8 4.8 2.6 4.6 –40 –20 0 20 40 60 80 100 120
17 0
–40 –20 0 20 40 60 80 100 120
-020 3-
TEMPERATURE (°C)
83
TEMPERATURE (°C)
8833 08 0 Figure 17. ADP2302 Current-Limit Threshold vs. Temperature, VBST − VSW = 5 V Figure 20. ADP2303 Current-Limit Threshold vs. Temperature, VBST − VSW = 5 V
2.9 1.30 2.8 1.25 ) ) V RISING 2.7 V D ( 1.20 D ( RISING L L HO 2.6 HO S S 1.15 HRE HRE 2.5 T FALLING T E O L 1.10 UV 2.4 NABL E FALLING 1.05 2.3 2.2 1.00
8 21
–40 –20 0 20 40 60 80 100 120 –40 –20 0 20 40 60 80 100 120
0 -01 3- 3
TEMPERATURE (°C)
83
TEMPERATURE (°C)
883 0 08 Figure 18. UVLO Threshold vs. Temperature Figure 21. Enable Threshold vs. Temperature Rev. A | Page 8 of 28 Document Outline Features Applications Typical Applications Circuit General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Functional Block Diagram Theory of Operation Basic Operation PWM Mode Power Saving Mode Bootstrap Circuitry Precision Enable Integrated Soft Start Current Limit Short-Circuit Protection Undervoltage Lockout (UVLO) Thermal Shutdown (TSD) Overvoltage Protection (OVP) Power Good Control Loop Applications Information ADIsimPower Design Tool Programming Output Voltage Voltage Conversion Limitations Low Input Voltage Considerations Programming the Precision Enable Inductor Catch Diode Input Capacitor Output Capacitor Thermal Consideration Design Example Catch Diode Selection Inductor Selection Output Capacitor Selection Resistive Voltage Divider Selection Circuit Board Layout Recommendations Typical Application Circuits Outline Dimensions Ordering Guide
19 -016
–40 –20 0 20 40 60 80 100 120
0 3-
TEMPERATURE (°C)
833 08
TEMPERATURE (°C)
883 0 Figure 16. Frequency vs. Temperature Figure 19. 0.8 V Feedback Voltage vs. Temperature
4.4 6.4 4.2 6.2 4.0 6.0 (A) (A) IT 3.8 IT 5.8 IM IM L L 3.6 5.6 NT NT 3.4 5.4 URRE 3.2 5.2 AK CURRE AK C E E P P 3.0 5.0 2.8 4.8 2.6 4.6 –40 –20 0 20 40 60 80 100 120
17 0
–40 –20 0 20 40 60 80 100 120
-020 3-
TEMPERATURE (°C)
83
TEMPERATURE (°C)
8833 08 0 Figure 17. ADP2302 Current-Limit Threshold vs. Temperature, VBST − VSW = 5 V Figure 20. ADP2303 Current-Limit Threshold vs. Temperature, VBST − VSW = 5 V
2.9 1.30 2.8 1.25 ) ) V RISING 2.7 V D ( 1.20 D ( RISING L L HO 2.6 HO S S 1.15 HRE HRE 2.5 T FALLING T E O L 1.10 UV 2.4 NABL E FALLING 1.05 2.3 2.2 1.00
8 21
–40 –20 0 20 40 60 80 100 120 –40 –20 0 20 40 60 80 100 120
0 -01 3- 3
TEMPERATURE (°C)
83
TEMPERATURE (°C)
883 0 08 Figure 18. UVLO Threshold vs. Temperature Figure 21. Enable Threshold vs. Temperature Rev. A | Page 8 of 28 Document Outline Features Applications Typical Applications Circuit General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Functional Block Diagram Theory of Operation Basic Operation PWM Mode Power Saving Mode Bootstrap Circuitry Precision Enable Integrated Soft Start Current Limit Short-Circuit Protection Undervoltage Lockout (UVLO) Thermal Shutdown (TSD) Overvoltage Protection (OVP) Power Good Control Loop Applications Information ADIsimPower Design Tool Programming Output Voltage Voltage Conversion Limitations Low Input Voltage Considerations Programming the Precision Enable Inductor Catch Diode Input Capacitor Output Capacitor Thermal Consideration Design Example Catch Diode Selection Inductor Selection Output Capacitor Selection Resistive Voltage Divider Selection Circuit Board Layout Recommendations Typical Application Circuits Outline Dimensions Ordering Guide