Datasheet ADP2370, ADP2371 (Analog Devices) - 9

Data Sheet ADP2370/ADP2371 1.25 3.40 3.35 1.23 3.30 E (V) E (V) G 1.21 G A A LT LT O O 3.25 T V T V U 1.19 U 3.8V TP 0.1mA TP 3.20 4.55V OU 1mA OU 6.05V 5mA 7.30V 10mA 10.55V 1.17 50mA 3.15 12.05V 100mA 15.05V 300mA 800mA 1.15 3.10 –40 –5 25 85 125
009
0.1 1 10 100 1000
012
TEMPERATURE (°C)
09531-
LOAD (mA)
09531- Figure 9. Output Voltage vs. Temperature, VOUT = 1.2 V, VIN = 4 V, Figure 12. Load Regulation, VOUT = 3.3 V Different Loads
1.90 5.20 0.1mA 50mA (–% LIMIT) 1mA 100mA (+% LIMIT) 5.15 5mA 300mA 10mA 800mA 1.85 5.10 E (V) G 5.05 A LT (V) O 1.80 5.00 UT T V O U V TP 4.95 0.1mA OU 1mA 1.75 5mA 4.90 10mA 50mA 100mA 300mA 4.85
13 1
800mA 1.70 4.80
09531-
–40 –5 25 85 125
010
5 7 9 11 13 15 TEMPERATURE (°C)
09531-
VIN (V)
Figure 10. Output Voltage vs. Temperature, VOUT = 1.8 V, VIN = 7.2 V, Figure 13. Line Regulation, V Different Loads OUT = 5.0 V, Different Loads
3.40 5.20 3.35 5.15 5.10 3.30 E (V) G E (V) A 5.05 G LT A O 3.25 LT O 5.00 T V U T V U TP 0.1mA 3.20 1mA 4.95 TP 5.40V OU 5mA 6.00V 10mA OU 7.20V 50mA 4.90 9.00V 3.15 100mA 10.80V 300mA 12.00V 800mA 4.85 15.05V 3.10
1
3 5 7 9 11 13 15
1 0
4.80 0.1 1 10 100 1000
014
INPUT VOLTAGE (V)
09531-
LOAD (mA)
09531- Figure 11. Line Regulation, VOUT = 3.3 V, Different Loads Figure 14. Load Regulation, V OUT = 5.0 V Rev. D | Page 9 of 32 Document Outline Features Applications Typical Application Circuit General Description Table of Contents Revision History Specifications Recommended Specifications: Capacitors Absolute Maximum Ratings Thermal Data Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Buck Output Theory of Operation PWM Operation PSM Operation Features Descriptions Precision Enable Forced PWM or PWM/PSM Selection Quick Output Discharge (QOD) Function Short-Circuit Protection Undervoltage Lockout Thermal Protection Soft Start Current Limit 100% Duty Cycle Synchronizing Power Good Applications Information ADIsimPower Design Tool External Component Selection Selecting the Inductor Output Capacitor Input Capacitor Adjustable Output Voltage Programming Efficiency Power Switch Conduction Losses Inductor Losses Switching Losses Transition Losses Recommended Buck External Components Capacitor Selection Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties Thermal Considerations PCB Layout Considerations Packaging and Ordering Information Outline Dimensions Ordering Guide