Datasheet ADP5072 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | 1 A/0.6 A DC-to-DC Switching Regulator with Independent Positive and Negative Outputs |
| Pages / Page | 24 / 10 — ADP5072. Data Sheet. 0.2. %) (. 0.1. V E. RAG E. N F IO. IAT. –0.1. IAT … |
| File Format / Size | PDF / 655 Kb |
| Document Language | English |
ADP5072. Data Sheet. 0.2. %) (. 0.1. V E. RAG E. N F IO. IAT. –0.1. IAT V. B2 F. –0.2
Model Line for this Datasheet
Text Version of Document
ADP5072 Data Sheet 0.2 0.2 %) ( %) UE ( AL UE V 0.1 AL 0.1 E V E RAG E RAG E AV 0 M 0 AV RO M RO N F IO N F IO IAT –0.1 –0.1 V IAT V DE B1 DE FV B2 F –0.2 V –0.2 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12
017
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12
020
INVERTING REGULATOR LOAD (A)
16646-
BOOST REGULATOR LOAD (A)
16646- Figure 21. Cross Regulation, Boost Regulator VFB1 Regulation, VIN = 5 V, Figure 24. Cross Regulation, Inverting Regulator VFB2 Regulation, VPOS = 15 V, VNEG = −15 V, fSW = 2.4 MHz, TA = 25°C, Boost Regulator Run in VIN = 5 V, VPOS = 15 V, VNEG = −15 V, fSW = 2.4 MHz, TA = 25°C, Inverting Continuous Conduction Mode with Fixed Load for Test Regulator Run in Continuous Conduction Mode with Fixed Load for Test
1.30 0.75 ) A) A ( IT IT ( 1.25 IM 0.72 L T LIM NT N E 1.20 R R 0.69 U C R CURRE 1.15 O TOR AT 0.66 LA UL G GU 1.10 E RE T R ING 0.63 1.05 RT OOS TA = +125°C E TA = +125°C B TA = +25°C TA = +25°C T INV A = – 40°C TA = –40°C 1.00 0.60 2.5 3.0 3.5 4.0 4.5 5.0 5.5
021
2.5 3.0 3.5 4.0 4.5 5.0 5.5
024
VIN (V) V
16646-
IN (V)
16646- Figure 22. Boost Regulator Current Limit (ILIMIT) vs. Input Voltage (VIN) Figure 25. Inverting Regulator Current Limit (ILIMIT) vs. Input Voltage (VIN) over Temperature over Temperature
2.54 1.27 1.25 ) 2.49 ) Hz Hz M M ( ( 1.23 2.44 NCY NCY UE UE 1.21 Q Q RE 2.39 RE R F R F 1.19 O O AT 2.34 AT L L L L 1.17 CI CI S S O 2.29 O T 1.15 T A = +125°C A = +125°C T T A = +25°C A = +25°C T T A = – 40°C A = – 40°C 2.24 1.13 2.5 3.0 3.5 4.0 4.5 5.0 5.5
022
2.5 3.0 3.5 4.0 4.5 5.0 5.5
025
V V IN (V) IN (V)
16646- 16646- Figure 23. Oscillator Frequency vs. Input Voltage (VIN) over Temperature, Figure 26. Oscillator Frequency vs. Input Voltage (VIN) over Temperature, SYNC Pin = High SYNC Pin = Low Rev. 0 | Page 10 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
017
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 0.11 0.12
020
INVERTING REGULATOR LOAD (A)
16646-
BOOST REGULATOR LOAD (A)
16646- Figure 21. Cross Regulation, Boost Regulator VFB1 Regulation, VIN = 5 V, Figure 24. Cross Regulation, Inverting Regulator VFB2 Regulation, VPOS = 15 V, VNEG = −15 V, fSW = 2.4 MHz, TA = 25°C, Boost Regulator Run in VIN = 5 V, VPOS = 15 V, VNEG = −15 V, fSW = 2.4 MHz, TA = 25°C, Inverting Continuous Conduction Mode with Fixed Load for Test Regulator Run in Continuous Conduction Mode with Fixed Load for Test
1.30 0.75 ) A) A ( IT IT ( 1.25 IM 0.72 L T LIM NT N E 1.20 R R 0.69 U C R CURRE 1.15 O TOR AT 0.66 LA UL G GU 1.10 E RE T R ING 0.63 1.05 RT OOS TA = +125°C E TA = +125°C B TA = +25°C TA = +25°C T INV A = – 40°C TA = –40°C 1.00 0.60 2.5 3.0 3.5 4.0 4.5 5.0 5.5
021
2.5 3.0 3.5 4.0 4.5 5.0 5.5
024
VIN (V) V
16646-
IN (V)
16646- Figure 22. Boost Regulator Current Limit (ILIMIT) vs. Input Voltage (VIN) Figure 25. Inverting Regulator Current Limit (ILIMIT) vs. Input Voltage (VIN) over Temperature over Temperature
2.54 1.27 1.25 ) 2.49 ) Hz Hz M M ( ( 1.23 2.44 NCY NCY UE UE 1.21 Q Q RE 2.39 RE R F R F 1.19 O O AT 2.34 AT L L L L 1.17 CI CI S S O 2.29 O T 1.15 T A = +125°C A = +125°C T T A = +25°C A = +25°C T T A = – 40°C A = – 40°C 2.24 1.13 2.5 3.0 3.5 4.0 4.5 5.0 5.5
022
2.5 3.0 3.5 4.0 4.5 5.0 5.5
025
V V IN (V) IN (V)
16646- 16646- Figure 23. Oscillator Frequency vs. Input Voltage (VIN) over Temperature, Figure 26. Oscillator Frequency vs. Input Voltage (VIN) over Temperature, SYNC Pin = High SYNC Pin = Low Rev. 0 | Page 10 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
