Datasheet ADP2119, ADP2120 (Analog Devices) - 9
| Hersteller | Analog Devices |
| Beschreibung | 1.25A, 1.2MHz Synchronous Step-Down DC-to-DC Regulator |
| Seiten / Seite | 24 / 9 — Data Sheet. ADP2119/ADP2120. 1.30. 2.30. 1.25. 2.25. RISING. V 1.20. … |
| Revision | A |
| Dateiformat / Größe | PDF / 893 Kb |
| Dokumentensprache | Englisch |
Data Sheet. ADP2119/ADP2120. 1.30. 2.30. 1.25. 2.25. RISING. V 1.20. 2.20. D (. S 1.15. 2.15. HRE. FALLING. N T 1.10. 2.10. 1.05. 2.05. 1.00. 2.00. –40. –20. 100
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Data Sheet ADP2119/ADP2120 1.30 2.30 1.25 2.25 RISING ) ) RISING V V 1.20 2.20 D ( D ( L L HO HO S S 1.15 2.15 HRE FALLING HRE T FALLING O N T 1.10 L E 2.10 UV 1.05 2.05 1.00 2.00 –40 –20 0 20 40 60 80 100 120
016
–40 –20 0 20 40 60 80 100 120
019
TEMPERATURE (°C) TEMPERATURE (°C)
08716- 08716- Figure 16. EN Threshold vs. Temperature Figure 19. UVLO Threshold vs. Temperature (VIN = 3.3 V)
3.1 3.5 TJ = +125°C TJ = +25°C 3.3 3.0 TJ = –40°C A) A) ( 3.1 ( IT 2.9 IT IM IM L L 2.9 NT NT 2.8 2.7 2.7 AK CURRE AK CURRE E E 2.5 P P 2.6 2.3 2.5 2.1 –40 –20 0 20 40 60 80 100 120
017
2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
020
TEMPERATURE (°C) V
08716-
IN (V)
08716- Figure 17. Peak Current Limit vs. Temperature (ADP2119, VIN = 3.3 V) Figure 20. Peak Current Limit vs. VIN (ADP2119)
2.10 2.2 TJ = +125°C TJ = +25°C 2.05 2.1 TJ = –40°C A) 2.00 A) ( ( IT IT 2.0 IM IM L 1.95 L NT NT 1.9 1.90 1.8 AK CURRE AK CURRE E 1.85 E P P 1.7 1.80 1.75 1.6 –40 –20 0 20 40 60 80 100 120
018
2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
021
TEMPERATURE (°C) V
08716-
IN (V)
08716- Figure 18. Peak Current Limit vs. Temperature (ADP2120, VIN = 3.3 V) Figure 21. Peak Current Limit vs. VIN (ADP2120) Rev. A | Page 9 of 24 Document Outline Features Applications Typical Application Circuit General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance Boundary Condition 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 (PGOOD) 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
016
–40 –20 0 20 40 60 80 100 120
019
TEMPERATURE (°C) TEMPERATURE (°C)
08716- 08716- Figure 16. EN Threshold vs. Temperature Figure 19. UVLO Threshold vs. Temperature (VIN = 3.3 V)
3.1 3.5 TJ = +125°C TJ = +25°C 3.3 3.0 TJ = –40°C A) A) ( 3.1 ( IT 2.9 IT IM IM L L 2.9 NT NT 2.8 2.7 2.7 AK CURRE AK CURRE E E 2.5 P P 2.6 2.3 2.5 2.1 –40 –20 0 20 40 60 80 100 120
017
2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
020
TEMPERATURE (°C) V
08716-
IN (V)
08716- Figure 17. Peak Current Limit vs. Temperature (ADP2119, VIN = 3.3 V) Figure 20. Peak Current Limit vs. VIN (ADP2119)
2.10 2.2 TJ = +125°C TJ = +25°C 2.05 2.1 TJ = –40°C A) 2.00 A) ( ( IT IT 2.0 IM IM L 1.95 L NT NT 1.9 1.90 1.8 AK CURRE AK CURRE E 1.85 E P P 1.7 1.80 1.75 1.6 –40 –20 0 20 40 60 80 100 120
018
2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
021
TEMPERATURE (°C) V
08716-
IN (V)
08716- Figure 18. Peak Current Limit vs. Temperature (ADP2120, VIN = 3.3 V) Figure 21. Peak Current Limit vs. VIN (ADP2120) Rev. A | Page 9 of 24 Document Outline Features Applications Typical Application Circuit General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance Boundary Condition 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 (PGOOD) 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