Datasheet ADP5076 (Analog Devices) - 10

ADP5076 Data Sheet 0.5 0.5 ) 0.4 (%) (% 0.4 E UE U 0.3 0.3 AL AL V V E 0.2 E 0.2 AG RAG R E 0.1 E 0.1 V V A A M 0 M 0 RO RO F –0.1 F –0.1 N N IO IO T –0.2 T –0.2 IA IA V V –0.3 E –0.3 DE D FB1 –0.4 FB2 –0.4 V V –0.5 –0.5 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
121
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
124
INVERTING REGULATOR LOAD (A) BOOST REGULATOR LOAD (A)
20402- 20402- Figure 21. Cross Regulation, Boost Regulator VFB1 Regulation over Inverting Figure 24. Cross Regulation, Inverting Regulator VFB2 Regulation over Boost Regulator Current Load, VIN = +5 V, VPOS = +15 V, VNEG = −15 V, fSW = 2.4 MHz, Regulator Current Load, VIN = +5 V, VPOS = +15 V, VNEG = −15 V, fSW = 2.4 MHz, TA = 25°C, Boost Regulator Run in Continuous Conduction Mode with Fixed TA = 25°C, Inverting Regulator Run in Continuous Conduction Mode with Load for Test Fixed Load for Test
2.40 1.44 TA = +125°C TA = +125°C T (A) A = +25°C 2.35 T (A) A = +25°C T TA = –40°C T IT A = –40°C 1.40 IM IM L 2.30 T L T N N E 1.36 2.25 RRE URR C CU R R 2.20 1.32 TO O T LA A L U 2.15 U G G 1.28 RE RE 2.10 G T IN S O RT 1.24 2.05 E BO V IN 2.00 1.20 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
122
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
-125 2-
VIN (V) VIN (V)
2040 20402 Figure 22. Boost Regulator Current Limit (ILIMIT1) vs. VIN over Temperature Figure 25. Inverting Regulator Current Limit (ILIMIT2) vs. VIN over Temperature
1.27 2.54 TA = +125°C TA = +125°C TA = +25°C TA = +25°C 1.25 TA = –40°C 2.49 TA = –40°C z) z) H H (M 1.23 (M Y Y C C 2.44 N N E E 1.21 QU QU E E 2.39 R FR F 1.19 R OR O T T A A 2.34 1.17 ILL ILL C C OS OS 2.29 1.15 1.13 2.24 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5
126 -123 02-
V V IN (V) IN (V)
20402 204 Figure 23. Oscillator Frequency vs. VIN over Temperature, SYNC Pin = High Figure 26. Oscillator Frequency vs. VIN over Temperature, SYNC Pin = Low Rev. A | Page 10 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION PULSE WIDTH MODULATION (PWM) MODE PULSE SKIP MODULATION MODE UVLO OSCILLATOR AND SYNCHRONIZATION INTERNAL REGULATOR PRECISION ENABLING SOFT START SLEW RATE CONTROL CURRENT-LIMIT PROTECTION OVERVOLTAGE PROTECTION THERMAL SHUTDOWN STARTUP 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