Datasheet ADP5076 (Analog Devices) - 7

Data Sheet ADP5076 TYPICAL PERFORMANCE CHARACTERISTICS 1200 500 VIN = 3.3V, L1 = 3.3µH V V IN = 3.3V, L2 = 4.7µH IN = 3.3V, L1 = 4.7µH V V 450 IN = 3.3V, L2 = 6.8µH V 1000 IN = 5.0V, L1 = 3.3µH V IN = 5V, L2 = 10µH IN = 5.0V, L1 = 4.7µH V 400 IN = 5V, L2 = 6.8µH ) A 800 350 (m ) A M) m 300 ( MU 600 X) XI A 250 M ( (MA T 200 T 400 I OU I OU 150 200 100 50 0 0 5 10 15 20 25 30 35 40 0
103
–35 –30 –25 –20 –15 –10 –5 0
106 02-
VPOS (V)
204
VNEG (V)
20402- Figure 3. Boost Regulator Maximum Output Current, fSW = 1.2 MHz, Figure 6. Inverting Regulator Maximum Output Current, fSW = 1.2 MHz, TA = 25°C, Based on Target of 70% ILIM (BOOST) TA = 25°C, Based on Target of 70% ILIM (INVERTER)
900 700 VIN = 3.3V, L1 = 3.3µH V V IN = 3.3V, L2 = 2.2µH 800 IN = 3.3V, L1 = 4.7µH V V IN = 5V, L2 = 3.3µH IN = 5V, L1 = 2.2µH V V 600 IN = 5V, L2 = 4.7µH IN = 5V, L1 = 4.7µH 700 ) A ) 500 600 A (m ) (m M) 500 M 400 IMU X IMU 400 X 300 (MA T (MA 300 T I OU I OU 200 200 100 100 0 0 5 10 15 20 25 30 35 40 0
-104
–35 –30 –25 –20 –15 –10 –5 0
107
VPOS (V)
20402
VNEG (V)
0402- 2 Figure 4. Boost Regulator Maximum Output Current, fSW = 2.4 MHz, Figure 7. Inverting Regulator Maximum Output Current, fSW = 2.4 MHz, TA = 25°C, Based on Target of 70% ILIM (BOOST) TA = 25°C, Based on Target of 70% ILIM (INVERTER)
100 100 VIN = 3.3V, fSW = 2.4MHz 90 V ) 90 ) IN = 3.3V, fSW = 1.2MHz (% (% Y Y 80 80 C NC N E IE 70 70 ICI C F F FFI 60 E 60 E R R O O 50 T 50 T A A L UL 40 G 40 GU E RE R 30 30 T ING 20 RT 20 OOS E B 10 INV 10 VIN = 3.3V, fSW = 2.4MHz VIN = 3.3V, fSW = 1.2MHz 0 0 0.001 0.01 0.1 1
105
0.001 0.01 0.1 1
108 02-
CURRENT LOAD (A)
204
CURRENT LOAD (A)
20402- Figure 5. Boost Regulator Efficiency vs. Current Load, Figure 8. Inverting Regulator Efficiency vs. Current Load, VIN = +3.3 V, VIN = 3.3 V, VPOS = 5 V, TA = 25°C VNEG = −5 V, TA = 25°C Rev. A | Page 7 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