Datasheet ADP5072 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 1 A/0.6 A DC-to-DC Switching Regulator with Independent Positive and Negative Outputs |
| 页数 / 页 | 24 / 8 — ADP5072. Data Sheet. 100. NCY. ICI. VIN = 3.3V, fSW = 1.2MHz. VIN = 3.3V, … |
| 文件格式/大小 | PDF / 655 Kb |
| 文件语言 | 英语 |
ADP5072. Data Sheet. 100. NCY. ICI. VIN = 3.3V, fSW = 1.2MHz. VIN = 3.3V, fSW = 2.4MHz. VIN = 5.0V, fSW = 1.2MHz
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ADP5072 Data Sheet 100 100 90 90 80 80 70 70 %) %) ( 60 ( 60 NCY NCY E 50 E 50 ICI ICI F F F 40 F 40 E E 30 30 20 VIN = 3.3V, fSW = 1.2MHz 20 VIN = 3.3V, fSW = 1.2MHz VIN = 3.3V, fSW = 2.4MHz VIN = 3.3V, fSW = 2.4MHz 10 VIN = 5.0V, fSW = 1.2MHz 10 VIN = 5.0V, fSW = 1.2MHz VIN = 5.0V, fSW = 2.4MHz VIN = 5.0V, fSW = 2.4MHz 0 0 0.001 0.01 0.1 1.0
009
0.001 0.01 0.1 1.0
012
LOAD CURRENT (A)
16646-
LOAD CURRENT (A)
16646- Figure 9. Efficiency vs. Load Current for Boost Regulator, VPOS = 9 V, TA = 25°C Figure 12. Efficiency vs. Load Current for Inverting Regulator, VNEG = −9 V, TA = 25°C
100 100 90 90 80 80 70 70 %) %) ( 60 ( 60 NCY NCY E 50 E 50 ICI ICI F F F 40 F 40 E E 30 30 20 VIN = 3.3V, fSW = 1.2MHz 20 VIN = 3.3V, fSW = 1.2MHz VIN = 3.3V, fSW = 2.4MHz VIN = 3.3V, fSW = 2.4MHz 10 VIN = 5.0V, fSW = 1.2MHz 10 VIN = 5.0V, fSW = 1.2MHz VIN = 5.0V, fSW = 2.4MHz VIN = 5.0V, fSW = 2.4MHz 0 0 0.001 0.01 0.1 1.0
010
0.001 0.01 0.1 1.0
013
LOAD CURRENT (A)
16646-
LOAD CURRENT (A)
16646- Figure 10. Efficiency vs. Load Current for Boost Regulator, VPOS = 15 V, Figure 13. Efficiency vs. Load Current for Inverting Regulator, VNEG = −15 V, TA = 25°C TA = 25°C
100 100 VIN = 3.3V, fSW = 1.2MHz 90 VIN = 5V, fSW = 1.2MHz 90 VIN = 5V, fSW = 2.4MHz 80 80 70 70 %) %) ( 60 ( 60 Y Y C C N 50 N 50 IE IE 40 FFIC 40 FFIC E E 30 30 20 20 VIN = 3.3V, fSW = 1.2MHz 10 10 VIN = 5V, fSW = 1.2MHz VIN = 5V, fSW = 2.4MHz 0
1
0
1
0.001 0.01 0.1
2 214
0.001 0.01 0.1 LOAD CURRENT (A) LOAD CURRENT (A)
16646- 16646- Figure 11. Efficiency vs. Load Current for Boost Regulator, VPOS = 35 V, Figure 14. Efficiency vs. Load Current for Inverting Regulator, VNEG = −30 V, TA = 25°C TA = 25°C Rev. 0 | Page 8 of 24 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION PWM MODE PSM MODE UNDERVOLTAGE LOCKOUT (UVLO) OSCILLATOR AND SYNCHRONIZATION INTERNAL REGULATOR PRECISION ENABLING SOFT START SLEW RATE CONTROL CURRENT-LIMIT PROTECTION OVERVOLTAGE PROTECTION THERMAL SHUTDOWN START-UP SEQUENCE APPLICATIONS INFORMATION COMPONENT SELECTION Feedback Resistors OUTPUT CAPACITORS Input Capacitor VREF Capacitor Soft Start Resistor Diodes Inductor Selection for the Boost Regulator Inductor Selection for the Inverting Regulator LOOP COMPENSATION Boost Regulator Inverting Regulator COMMON APPLICATIONS LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE
009
0.001 0.01 0.1 1.0
012
LOAD CURRENT (A)
16646-
LOAD CURRENT (A)
16646- Figure 9. Efficiency vs. Load Current for Boost Regulator, VPOS = 9 V, TA = 25°C Figure 12. Efficiency vs. Load Current for Inverting Regulator, VNEG = −9 V, TA = 25°C
100 100 90 90 80 80 70 70 %) %) ( 60 ( 60 NCY NCY E 50 E 50 ICI ICI F F F 40 F 40 E E 30 30 20 VIN = 3.3V, fSW = 1.2MHz 20 VIN = 3.3V, fSW = 1.2MHz VIN = 3.3V, fSW = 2.4MHz VIN = 3.3V, fSW = 2.4MHz 10 VIN = 5.0V, fSW = 1.2MHz 10 VIN = 5.0V, fSW = 1.2MHz VIN = 5.0V, fSW = 2.4MHz VIN = 5.0V, fSW = 2.4MHz 0 0 0.001 0.01 0.1 1.0
010
0.001 0.01 0.1 1.0
013
LOAD CURRENT (A)
16646-
LOAD CURRENT (A)
16646- Figure 10. Efficiency vs. Load Current for Boost Regulator, VPOS = 15 V, Figure 13. Efficiency vs. Load Current for Inverting Regulator, VNEG = −15 V, TA = 25°C TA = 25°C
100 100 VIN = 3.3V, fSW = 1.2MHz 90 VIN = 5V, fSW = 1.2MHz 90 VIN = 5V, fSW = 2.4MHz 80 80 70 70 %) %) ( 60 ( 60 Y Y C C N 50 N 50 IE IE 40 FFIC 40 FFIC E E 30 30 20 20 VIN = 3.3V, fSW = 1.2MHz 10 10 VIN = 5V, fSW = 1.2MHz VIN = 5V, fSW = 2.4MHz 0
1
0
1
0.001 0.01 0.1
2 214
0.001 0.01 0.1 LOAD CURRENT (A) LOAD CURRENT (A)
16646- 16646- Figure 11. Efficiency vs. Load Current for Boost Regulator, VPOS = 35 V, Figure 14. Efficiency vs. Load Current for Inverting Regulator, VNEG = −30 V, TA = 25°C TA = 25°C Rev. 0 | Page 8 of 24 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION PWM MODE PSM MODE UNDERVOLTAGE LOCKOUT (UVLO) OSCILLATOR AND SYNCHRONIZATION INTERNAL REGULATOR PRECISION ENABLING SOFT START SLEW RATE CONTROL CURRENT-LIMIT PROTECTION OVERVOLTAGE PROTECTION THERMAL SHUTDOWN START-UP SEQUENCE APPLICATIONS INFORMATION COMPONENT SELECTION Feedback Resistors OUTPUT CAPACITORS Input Capacitor VREF Capacitor Soft Start Resistor Diodes Inductor Selection for the Boost Regulator Inductor Selection for the Inverting Regulator LOOP COMPENSATION Boost Regulator Inverting Regulator COMMON APPLICATIONS LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE