Datasheet ADP5040 (Analog Devices) - 9

Data Sheet ADP5040 3.90 1.24 –40°C 3.88 +25°C 1.23 +85°C 3.86 ) ) V 3.84 V ( ( 1.22 GE 3.82 GE OLTA 3.80 OLTA 1.21 T V T V U 3.78 U TP TP 1.20 OU 3.76 OU 3.74 –40°C 1.19 3.72 +25°C +85°C 3.70 1.18 0.01 0.1 1
009
0.01 0.1 1
012
OUTPUT CURRENT (A)
09665-
OUTPUT CURRENT (A)
09665- Figure 9. Buck Load Regulation Across Temperature, VOUT1 = 3.8 V, Figure 12. Buck Load Regulation Across Temperature, VOUT1 = 1.2 V, Auto Mode Auto Mode
3.39 3.90 –40°C –40°C +25°C 3.88 +25°C 3.37 +85°C +85°C 3.86 ) 3.35 ) V V 3.84 ( ( GE GE 3.82 3.33 OLTA OLTA 3.80 T V 3.31 T V U U 3.78 TP TP OU 3.29 3.76 OU 3.74 3.27 3.72 3.25 3.70 0.01 0.1 1
010
0.01 0.1 1
013
OUTPUT CURRENT (A) OUTPUT CURRENT (A)
09665- 09665- Figure 10. Buck Load Regulation Across Temperature, VOUT1 = 3.3 V, Figure 13. Buck Load Regulation Across Temperature, VOUT1 = 3.8 V, Auto Mode PWM Mode
1.820 3.32 –40°C –40°C +25°C 1.815 +25°C 3.31 +85°C +85°C 1.810 ) ) V 3.30 V ( ( 1.805 GE GE 3.29 OLTA 1.800 OLTA T V T V 3.28 U U 1.795 TP TP OU OU 3.27 1.790 3.26 1.785 1.780
1
3.25
1
0.01 0.1 1
0
0.01 0.1 1
014
OUTPUT CURRENT (A) OUTPUT CURRENT (A)
09665- 09665- Figure 11. Buck Load Regulation Across Temperature, VOUT1 = 1.8 V, Figure 14. Buck Load Regulation Across Temperature, VOUT1 = 3.3 V, Auto Mode PWM Mode Rev. C | Page 9 of 37 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS GENERAL SPECIFICATIONS BUCK SPECIFICATIONS LDO1, LDO2 SPECIFICATIONS INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION POWER MANAGEMENT UNIT Thermal Protection Undervoltage Lockout Enable/Shutdown Active Pull-Down BUCK SECTION Control Scheme PWM Mode Power Save Mode (PSM) PSM Current Threshold Short-Circuit Protection Soft Start Current Limit 100% Duty Operation LDO SECTION APPLICATIONS INFORMATION BUCK EXTERNAL COMPONENT SELECTION Feedback Resistors Inductor Output Capacitor Input Capacitor LDO EXTERNAL COMPONENT SELECTION Feedback Resistors Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties POWER DISSIPATION/THERMAL CONSIDERATIONS Buck Regulator Power Dissipation LDO Regulator Power Dissipation Junction Temperature APPLICATION DIAGRAM PCB LAYOUT GUIDELINES SUGGESTED LAYOUT BILL OF MATERIALS FACTORY PROGRAMMABLE OPTIONS OUTLINE DIMENSIONS ORDERING GUIDE