Datasheet ADP5072 (Analog Devices) - 7
| 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 / 7 — Data Sheet. ADP5072. TYPICAL PERFORMANCE CHARACTERISTICS. 700. 350. VIN = … |
| 文件格式/大小 | PDF / 655 Kb |
| 文件语言 | 英语 |
Data Sheet. ADP5072. TYPICAL PERFORMANCE CHARACTERISTICS. 700. 350. VIN = 3.3V, L = 6.8µH. VIN = 3.3V, L = 10.0µH
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Data Sheet ADP5072 TYPICAL PERFORMANCE CHARACTERISTICS 700 350 VIN = 3.3V, L = 6.8µH VIN = 3.3V, L = 10.0µH VIN = 3.3V, L = 4.7µH VIN = 3.3V, L = 6.8µH 600 VIN = 5.0V, L = 10.0µH 300 VIN = 5.0V, L = 10.0µH VIN = 5.0V, L = 6.8µH VIN = 5.0V, L = 15.0µH 500 250 ) ) A A 400 200 X) (m X) (m (MA 300 (MA 150 UT UT I O I O 200 100 100 50 0 0 0 5 10 15 20 25 30 35 40
003
–35 –30 –25 –20 –15 –10 –5 0
006
VPOS (V) V
16646-
NEG (V)
16646- Figure 3. Maximum Output Current (IOUT) vs. VPOS for Boost Regulator, Figure 6. Maximum Output Current (IOUT) vs. VNEG for Inverting Regulator, fSW = 1.2 MHz, TA = 25°C, Based on Target of 70% ILIM (BOOST) fSW = 1.2 MHz, TA = 25°C, Based on Target of 70% ILIM (INVERTER)
700 350 VIN = 3.3V, L = 6.8µH VIN = 3.3V, L = 10.0µH VIN = 3.3V, L = 3.3µH VIN = 3.3V, L = 6.8µH 600 VIN = 5.0V, L = 10.0µH 300 VIN = 5.0V, L = 10.0µH VIN = 5.0V, L = 3.3µH VIN = 5.0V, L = 15.0µH 500 250 ) ) A A 400 200 X) (m X) (m (MA 300 (MA 150 UT UT I O I O 200 100 100 50 0 0 0 5 10 15 20 25 30 35 40
004
–35 –30 –25 –20 –15 –10 –5 0
007
VPOS (V) V
16646-
NEG (V)
16646- Figure 4. Maximum Output Current (IOUT) vs. VPOS for Boost Regulator, Figure 7. Maximum Output Current (IOUT) vs. VNEG for Inverting Regulator, fSW = 2.4 MHz, TA = 25°C, Based on Target of 70% ILIM (BOOST) fSW = 2.4 MHz, TA = 25°C, Based on Target of 70% ILIM (INVERTER)
100 90 90 80 80 70 70 60 %) %) ( 60 ( 50 NCY NCY E 50 E ICI ICI 40 F F F 40 F E E 30 30 20 20 10 VIN = 3.3V, fSW = 1.2MHz 10 VIN = 3.3V, fSW = 1.2MHz VIN = 3.3V, fSW = 2.4MHz VIN = 3.3V, fSW = 2.4MHz 0 0 0.001 0.01 0.1 1.0
005
0.001 0.01 0.1 1.0
008
LOAD CURRENT (A)
16646-
LOAD CURRENT (A)
16646- Figure 5. Efficiency vs. Load Current for Boost Regulator, VIN = 3.3 V, Figure 8. Efficiency vs. Load Current for Inverting Regulator, VIN = 3.3 V, VPOS = 5 V, TA = 25°C VNEG = −5 V, TA = 25°C Rev. 0 | Page 7 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
003
–35 –30 –25 –20 –15 –10 –5 0
006
VPOS (V) V
16646-
NEG (V)
16646- Figure 3. Maximum Output Current (IOUT) vs. VPOS for Boost Regulator, Figure 6. Maximum Output Current (IOUT) vs. VNEG for Inverting Regulator, fSW = 1.2 MHz, TA = 25°C, Based on Target of 70% ILIM (BOOST) fSW = 1.2 MHz, TA = 25°C, Based on Target of 70% ILIM (INVERTER)
700 350 VIN = 3.3V, L = 6.8µH VIN = 3.3V, L = 10.0µH VIN = 3.3V, L = 3.3µH VIN = 3.3V, L = 6.8µH 600 VIN = 5.0V, L = 10.0µH 300 VIN = 5.0V, L = 10.0µH VIN = 5.0V, L = 3.3µH VIN = 5.0V, L = 15.0µH 500 250 ) ) A A 400 200 X) (m X) (m (MA 300 (MA 150 UT UT I O I O 200 100 100 50 0 0 0 5 10 15 20 25 30 35 40
004
–35 –30 –25 –20 –15 –10 –5 0
007
VPOS (V) V
16646-
NEG (V)
16646- Figure 4. Maximum Output Current (IOUT) vs. VPOS for Boost Regulator, Figure 7. Maximum Output Current (IOUT) vs. VNEG for Inverting Regulator, fSW = 2.4 MHz, TA = 25°C, Based on Target of 70% ILIM (BOOST) fSW = 2.4 MHz, TA = 25°C, Based on Target of 70% ILIM (INVERTER)
100 90 90 80 80 70 70 60 %) %) ( 60 ( 50 NCY NCY E 50 E ICI ICI 40 F F F 40 F E E 30 30 20 20 10 VIN = 3.3V, fSW = 1.2MHz 10 VIN = 3.3V, fSW = 1.2MHz VIN = 3.3V, fSW = 2.4MHz VIN = 3.3V, fSW = 2.4MHz 0 0 0.001 0.01 0.1 1.0
005
0.001 0.01 0.1 1.0
008
LOAD CURRENT (A)
16646-
LOAD CURRENT (A)
16646- Figure 5. Efficiency vs. Load Current for Boost Regulator, VIN = 3.3 V, Figure 8. Efficiency vs. Load Current for Inverting Regulator, VIN = 3.3 V, VPOS = 5 V, TA = 25°C VNEG = −5 V, TA = 25°C Rev. 0 | Page 7 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