Datasheet ADP2119, ADP2120 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 1.25A, 1.2MHz Synchronous Step-Down DC-to-DC Regulator |
| 页数 / 页 | 24 / 8 — ADP2119/ADP2120. Data Sheet. 100. NCY. ICI. VOUT = 1.0V. VOUT = 1.2V. … |
| 修订版 | A |
| 文件格式/大小 | PDF / 893 Kb |
| 文件语言 | 英语 |
ADP2119/ADP2120. Data Sheet. 100. NCY. ICI. VOUT = 1.0V. VOUT = 1.2V. VOUT = 1.5V. VOUT = 1.8V. OUT = 2.5V. INDUCTOR SUMIDA
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文件文字版本
ADP2119/ADP2120 Data Sheet 100 100 90 90 80 80 70 70 %) %) ( 60 ( 60 NCY 50 NCY E 50 E ICI ICI F 40 F 40 F F E E 30 VOUT = 1.0V 30 VOUT = 1.0V VOUT = 1.2V VOUT = 1.2V 20 VOUT = 1.5V 20 VOUT = 1.5V VOUT = 1.8V VOUT = 1.8V 10 V 10 OUT = 2.5V V INDUCTOR SUMIDA OUT = 2.5V INDUCTOR SUMIDA V CDRH5D18BHPNP-1R5M OUT = 3.3V V CDRH5D18BHPNP-1R5M OUT = 3.3V 0 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
010
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
013
OUTPUT CURRENT (A) OUTPUT CURRENT (A)
08716- 08716- Figure 10. Efficiency (ADP2120, VIN = 5 V, FPWM) vs. Output Current Figure 13. Efficiency (ADP2120, VIN = 5 V, PFM) vs. Output Current
900 605 850 604 800 603 ) A) µ 602 ( 750 mV ( NT E 601 700 AG T L 600 650 O CURRE 599 NT 600 CE 598 S E DBACK V 550 E UI E 597 Q F 500 596 TJ = +125°C 450 TJ = +25°C 595 TJ = –40°C 400 594 2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 –40 –20 0 20 40 60 80 100 120
011 014
VIN (V) TEMPERATURE (°C)
08716- 08716- Figure 11. Quiescent Current vs. V Figure 14. Feedback Voltage vs. Temperature (V IN (Switching) IN = 3.3 V)
275 120 TJ = +125°C TJ = +125°C 250 TJ = +25°C 110 TJ = +25°C TJ = –40°C TJ = –40°C 225 100 ) ) Ω Ω 200 90 (m (m 175 TOR 80 TOR ESIS 150 ESIS 70 T R T R 125 60 FE PFE N 100 50 75 40 50 30 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
012 015
VIN (V) VIN (V)
08716- 08716- Figure 12. PFET Resistor vs. V Figure 15. NFET Resistor vs. V IN (Pin-to-Pin Measurements) IN (Pin-to-Pin Measurements) Rev. A | Page 8 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
010
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
013
OUTPUT CURRENT (A) OUTPUT CURRENT (A)
08716- 08716- Figure 10. Efficiency (ADP2120, VIN = 5 V, FPWM) vs. Output Current Figure 13. Efficiency (ADP2120, VIN = 5 V, PFM) vs. Output Current
900 605 850 604 800 603 ) A) µ 602 ( 750 mV ( NT E 601 700 AG T L 600 650 O CURRE 599 NT 600 CE 598 S E DBACK V 550 E UI E 597 Q F 500 596 TJ = +125°C 450 TJ = +25°C 595 TJ = –40°C 400 594 2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 –40 –20 0 20 40 60 80 100 120
011 014
VIN (V) TEMPERATURE (°C)
08716- 08716- Figure 11. Quiescent Current vs. V Figure 14. Feedback Voltage vs. Temperature (V IN (Switching) IN = 3.3 V)
275 120 TJ = +125°C TJ = +125°C 250 TJ = +25°C 110 TJ = +25°C TJ = –40°C TJ = –40°C 225 100 ) ) Ω Ω 200 90 (m (m 175 TOR 80 TOR ESIS 150 ESIS 70 T R T R 125 60 FE PFE N 100 50 75 40 50 30 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
012 015
VIN (V) VIN (V)
08716- 08716- Figure 12. PFET Resistor vs. V Figure 15. NFET Resistor vs. V IN (Pin-to-Pin Measurements) IN (Pin-to-Pin Measurements) Rev. A | Page 8 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