Datasheet ADP5300 (Analog Devices) - 9
| Fabricante | Analog Devices |
| Descripción | 50 mA/500 mA, High Efficiency, Ultralow Power Step-Down Regulator |
| Páginas / Página | 21 / 9 — Data Sheet. ADP5300. 100. (%). FFIC. IN = 2.5V. IN = 3.0V. VIN = 3.0V. IN … |
| Revisión | B |
| Formato / tamaño de archivo | PDF / 746 Kb |
| Idioma del documento | Inglés |
Data Sheet. ADP5300. 100. (%). FFIC. IN = 2.5V. IN = 3.0V. VIN = 3.0V. IN = 3.6V. VIN = 4.2V. VIN = 5.0V. VIN = 6.0V. 200. 300. 400. 500
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Data Sheet ADP5300 100 100 90 90 80 80 70 70 (%) 60 (%) 60 Y Y C C N 50 N 50 IE IE FFIC 40 FFIC 40 E V E V IN = 2.5V IN = 2.5V 30 V 30 IN = 3.0V VIN = 3.0V V V 20 IN = 3.6V 20 IN = 3.6V VIN = 4.2V VIN = 4.2V 10 VIN = 5.0V 10 VIN = 5.0V VIN = 6.0V VIN = 6.0V 0 0 0 100 200 300 400 500
010
0 100 200 300 400 500
013
LOAD CURRENT (mA)
13366-
LOAD CURRENT (mA)
13366- Figure 10. PWM Efficiency vs. Load Current, VOUT = 1.5 V Figure 13. PWM Efficiency vs. Load Current, VOUT = 1.8 V
100 100 90 90 80 80 70 70 (%) 60 (%) 60 Y Y C C N 50 N 50 IE IE FFIC 40 FFIC 40 E E 30 V 30 IN = 3.0V V VIN = 3.6V 20 IN = 3.6V 20 V V IN = 4.2V IN = 4.2V V 10 VIN = 5.0V 10 IN = 5.0V V V IN = 6.0V IN = 6.0V 0
1 1
0 0 100 200 300 400 500
0
0 100 200 300 400 500
014
LOAD CURRENT (mA)
13366-
LOAD CURRENT (mA)
13366- Figure 11. PWM Efficiency vs. Load Current, VOUT = 2.5 V Figure 14. PWM Efficiency vs. Load Current, VOUT = 3.3 V
160 350 140 –40ºC –40ºC +25ºC +25ºC 300 +85ºC +85ºC A) 120 A) n +125ºC n +125ºC ( ( NT NT 100 250 80 CURRE N CURRE NT W 200 60 CE DO S E HUT UI S 40 Q 150 20 0 100
015
2.3 2.9 3.5 4.1 4.7 5.3 5.9 6.5
012
2.3 2.9 3.5 4.1 4.7 5.3 5.9 6.5 V V IN (V) IN (V)
13366- 13366- Figure 12. Shutdown Current vs. VIN, EN = Low Figure 15. Hysteresis Quiescent Current vs. VIN, SYNC/MODE = Low Rev. A | Page 9 of 21 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY DETAILED FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION BUCK REGULATOR OPERATIONAL MODES PWM Mode Hysteresis Mode Mode Selection OSILLATOR AND SYNCHRONIZATION ADJUSTABLE AND FIXED OUTPUT VOLTAGES UNDERVOLTAGE LOCKOUT (UVLO) ENABLE/DISABLE CURRENT LIMIT SHORT-CIRCUIT PROTECTION SOFT START STARTUP WITH PRECHARGED OUTPUT 100% DUTY OPERATION ACTIVE DISCHARGE VOUTOK FUNCTION STOP SWITCHING THERMAL SHUTDOWN APPLICATIONS INFORMATION EXTERNAL COMPONENT SELECTION SELECTING THE INDUCTOR OUTPUT CAPACITOR INPUT CAPACITOR EFFICIENCY Power Switch Conduction Losses Inductor Losses Driver Losses Transition Losses CIRCUIT BOARD LAYOUT RECOMMENDATIONS TYPICAL APPLICATION CIRCUITS FACTORY PROGRAMMABLE OPTIONS OUTLINE DIMENSIONS ORDERING GUIDE
010
0 100 200 300 400 500
013
LOAD CURRENT (mA)
13366-
LOAD CURRENT (mA)
13366- Figure 10. PWM Efficiency vs. Load Current, VOUT = 1.5 V Figure 13. PWM Efficiency vs. Load Current, VOUT = 1.8 V
100 100 90 90 80 80 70 70 (%) 60 (%) 60 Y Y C C N 50 N 50 IE IE FFIC 40 FFIC 40 E E 30 V 30 IN = 3.0V V VIN = 3.6V 20 IN = 3.6V 20 V V IN = 4.2V IN = 4.2V V 10 VIN = 5.0V 10 IN = 5.0V V V IN = 6.0V IN = 6.0V 0
1 1
0 0 100 200 300 400 500
0
0 100 200 300 400 500
014
LOAD CURRENT (mA)
13366-
LOAD CURRENT (mA)
13366- Figure 11. PWM Efficiency vs. Load Current, VOUT = 2.5 V Figure 14. PWM Efficiency vs. Load Current, VOUT = 3.3 V
160 350 140 –40ºC –40ºC +25ºC +25ºC 300 +85ºC +85ºC A) 120 A) n +125ºC n +125ºC ( ( NT NT 100 250 80 CURRE N CURRE NT W 200 60 CE DO S E HUT UI S 40 Q 150 20 0 100
015
2.3 2.9 3.5 4.1 4.7 5.3 5.9 6.5
012
2.3 2.9 3.5 4.1 4.7 5.3 5.9 6.5 V V IN (V) IN (V)
13366- 13366- Figure 12. Shutdown Current vs. VIN, EN = Low Figure 15. Hysteresis Quiescent Current vs. VIN, SYNC/MODE = Low Rev. A | Page 9 of 21 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY DETAILED FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION BUCK REGULATOR OPERATIONAL MODES PWM Mode Hysteresis Mode Mode Selection OSILLATOR AND SYNCHRONIZATION ADJUSTABLE AND FIXED OUTPUT VOLTAGES UNDERVOLTAGE LOCKOUT (UVLO) ENABLE/DISABLE CURRENT LIMIT SHORT-CIRCUIT PROTECTION SOFT START STARTUP WITH PRECHARGED OUTPUT 100% DUTY OPERATION ACTIVE DISCHARGE VOUTOK FUNCTION STOP SWITCHING THERMAL SHUTDOWN APPLICATIONS INFORMATION EXTERNAL COMPONENT SELECTION SELECTING THE INDUCTOR OUTPUT CAPACITOR INPUT CAPACITOR EFFICIENCY Power Switch Conduction Losses Inductor Losses Driver Losses Transition Losses CIRCUIT BOARD LAYOUT RECOMMENDATIONS TYPICAL APPLICATION CIRCUITS FACTORY PROGRAMMABLE OPTIONS OUTLINE DIMENSIONS ORDERING GUIDE