Datasheet ADP2108 (Analog Devices) - 7

Data Sheet ADP2108 1.825 100 90 1.815 80 ) V 70 ( VIN = 2.7V VIN = 2.7V V GE IN = 3.6V %) V 1.805 V ( 60 IN = 3.6V IN = 4.5V V V IN = 4.5V IN = 5.5V V OLTA NCY 50 IN = 5.5V E T V ICI U 1.795 F 40 F TP E OU 30 1.785 20 10 1.775 0 0 0.1 0.2 0.3 0.4 0.5 0.6
023 020
0.001 0.01 0.1 1 OUTPUT CURRENT (A)
07375- 07375-
OUTPUT CURRENT (A)
Figure 10. Load Regulation, VOUT = 1.8 V Figure 13. Efficiency, VOUT = 1.8 V
1.025 100 VIN = 2.7V VIN = 3.6V 90 1.020 VIN = 4.5V VIN = 5.5V 80 1.015 ) V 70 ( 1.010 GE %) ( 60 VIN = 2.7V OLTA 1.005 NCY 50 V E IN = 3.6V V T V ICI IN = 4.5V U F 40 V 1.000 IN = 5.5V F TP E OU 30 0.995 20 0.990 10 0.985 0 0 0.1 0.2 0.3 0.4 0.5 0.6
024 021
0.001 0.01 0.1 1 OUTPUT CURRENT (A)
07375- 07375-
OUTPUT CURRENT (A)
Figure 11. Load Regulation, VOUT = 1.0 V Figure 14. Efficiency, VOUT = 1.0 V
100 3.3775 90 3.3575 80 V ) 3.3375 IN = 3.6V V 70 VIN = 4.5V ( VIN = 5.5V GE 3.3175 %) V ( 60 IN = 3.6V VIN = 4.5V OLTA 3.2975 V NCY 50 IN = 5.5V E T V ICI U F 40 F TP 3.2775 E OU 30 3.2575 20 3.2375 10 3.2175 0 0 0.1 0.2 0.3 0.4 0.5 0.6
022
0.001 0.01 0.1 1
025
OUTPUT CURRENT (A)
07375- 07375-
OUTPUT CURRENT (A)
Figure 12. Load Regulation, VOUT = 3.3 V Figure 15. Efficiency, VOUT = 3.3 V Rev. H | Page 7 of 20 Document Outline Features Applications General Description Typical Applications Circuit Table of Contents Revision History Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme PWM Mode Power Save Mode Power Save Mode Current Threshold Enable/Shutdown Short-Circuit Protection Undervoltage Lockout Thermal Protection Soft Start Current Limit 100% Duty Operation Applications Information ADIsimPower Design Tool External Component Selection Inductor Output Capacitor Input Capacitor Thermal Considerations PCB Layout Guidelines Evaluation Board Outline Dimensions Ordering Guide