Datasheet ADP2118 (Analog Devices) - 9
| 制造商 | Analog Devices |
| 描述 | 3 A, 1.2 MHz/600 kHz High Efficiency Synchronous Step-Down DC-to-DC Regulator |
| 页数 / 页 | 24 / 9 — Data Sheet. ADP2118. 1350. 660. 640. 1300. 620. kHz. ( 1250. 600. UE … |
| 修订版 | E |
| 文件格式/大小 | PDF / 1.1 Mb |
| 文件语言 | 英语 |
Data Sheet. ADP2118. 1350. 660. 640. 1300. 620. kHz. ( 1250. 600. UE 1200. 580. 1150. 560. CHI. 1100. 540. 1050. 520. J = –40°C. J = +25°C. J = +125°C. 1000. 500. 2.3
该数据表的模型线
文件文字版本
Data Sheet ADP2118 1350 660 640 1300 ) ) 620 kHz kHz ( 1250 ( Y Y NC NC 600 UE 1200 UE Q Q 580 RE RE F F 1150 NG NG 560 CHI CHI 1100 IT IT 540 W W S S 1050 T T 520 J = –40°C J = –40°C T T J = +25°C J = +25°C T T J = +125°C J = +125°C 1000 500 2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
029 026
V VIN (V) IN (V)
08301- 08301- Figure 16. Switching Frequency vs. V Figure 19. Switching Frequency vs. V IN at 1.2 MHz IN at 600 kHz
1.30 2.22 1.28 2.20 1.26 RISING 1.24 ) 2.18 V 1.22 ) RISING V D ( 1.20 L D ( 2.16 L 1.18 HO S HO 1.16 S 2.14 HRE 1.14 T HRE E 1.12 T FALLING O 2.12 1.10 L FALLING NABL UV 1.08 E 2.10 1.06 1.04 2.08 1.02 1.00 2.06 –40 –20 0 20 40 60 80 100 120 –40 –20 0 20 40 60 80 100 120
027 030
TEMPERATURE (°C) TEMPERATURE (°C)
08301- 08301- Figure 17. EN Threshold vs. Temperature Figure 20. UVLO Threshold vs. Temperature (VIN = 3.3 V)
5.5 5.5 5.4 5.4 5.3 5.3 A) A) ( ( IT 5.2 IT 5.2 IM IM L L 5.1 5.1 NT NT 5.0 5.0 4.9 4.9 AK CURRE AK CURRE E E P P 4.8 4.8 4.7 4.7 4.6 4.6 –40 –20 0 20 40 60 80 100 120 2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
028 031
TEMPERATURE (°C) VIN (V)
08301- 08301- Figure 18. Peak Current Limit vs. Temperature (VIN = 3.3 V) Figure 21. Peak Current Limit vs. VIN (TJ = 25°C) Rev. E | Page 9 of 24 Document Outline Features Applications General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance Boundary Conditions ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Functional Block Diagram Theory of Operation Control Scheme PWM Mode Operation PFM Mode Operation Slope Compensation Enable/Shutdown Integrated Soft Start Tracking Oscillator and Synchronization Current Limit and Short-Circuit Protection Overvoltage Protection (OVP) Undervoltage Lockout (UVLO) Thermal Shutdown Power Good Applications Information ADIsimPower™ Design Tool Output Voltage Selection Inductor Selection Output Capacitor Selection Input Capacitor Selection Voltage Tracking Typical Application Circuits Outline Dimensions Ordering Guide
029 026
V VIN (V) IN (V)
08301- 08301- Figure 16. Switching Frequency vs. V Figure 19. Switching Frequency vs. V IN at 1.2 MHz IN at 600 kHz
1.30 2.22 1.28 2.20 1.26 RISING 1.24 ) 2.18 V 1.22 ) RISING V D ( 1.20 L D ( 2.16 L 1.18 HO S HO 1.16 S 2.14 HRE 1.14 T HRE E 1.12 T FALLING O 2.12 1.10 L FALLING NABL UV 1.08 E 2.10 1.06 1.04 2.08 1.02 1.00 2.06 –40 –20 0 20 40 60 80 100 120 –40 –20 0 20 40 60 80 100 120
027 030
TEMPERATURE (°C) TEMPERATURE (°C)
08301- 08301- Figure 17. EN Threshold vs. Temperature Figure 20. UVLO Threshold vs. Temperature (VIN = 3.3 V)
5.5 5.5 5.4 5.4 5.3 5.3 A) A) ( ( IT 5.2 IT 5.2 IM IM L L 5.1 5.1 NT NT 5.0 5.0 4.9 4.9 AK CURRE AK CURRE E E P P 4.8 4.8 4.7 4.7 4.6 4.6 –40 –20 0 20 40 60 80 100 120 2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
028 031
TEMPERATURE (°C) VIN (V)
08301- 08301- Figure 18. Peak Current Limit vs. Temperature (VIN = 3.3 V) Figure 21. Peak Current Limit vs. VIN (TJ = 25°C) Rev. E | Page 9 of 24 Document Outline Features Applications General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance Boundary Conditions ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Functional Block Diagram Theory of Operation Control Scheme PWM Mode Operation PFM Mode Operation Slope Compensation Enable/Shutdown Integrated Soft Start Tracking Oscillator and Synchronization Current Limit and Short-Circuit Protection Overvoltage Protection (OVP) Undervoltage Lockout (UVLO) Thermal Shutdown Power Good Applications Information ADIsimPower™ Design Tool Output Voltage Selection Inductor Selection Output Capacitor Selection Input Capacitor Selection Voltage Tracking Typical Application Circuits Outline Dimensions Ordering Guide