Datasheet ADP1882, ADP1883 (Analog Devices) - 9

ADP1882/ADP1883 0.829 V V 0.820 IN = 16.5V IN = 16.5V VIN = 13V 0.827 +125°C +125°C +125°C 0.818 0.825 +25°C +25°C +25°C 0.816 –40°C –40°C –40°C 0.823 0.814 0.821 V) 0.812 0.819 ) V E ( 0.817 ( 0.810 G E A 0.815 0.808 T AG L 0.813 T L 0.806 VO 0.811 O T V 0.804 0.809 PU UT 0.802 T 0.807 P U 0.800 O 0.805 UT O 0.803 0.798 0.801 0.796 V V IN = 5.5V VIN = 13V IN = 16.5V 0.799 0.794 +125°C +125°C +125°C 0.797 +25°C +25°C +25°C 0.792 0.795 –40°C –40°C –40°C
5 11
0 2k 4k0 6k 8k 10k 12k 14k 0.790
8 1-
0 2k 4k 6k 8k 10k 12k
01 90 1- 08
LOAD CURRENT (mA)
90
LOAD CURRENT (mA)
08 Figure 16. Output Voltage Accuracy—600 kHz, VOUT = 0.8 V Figure 19. Output Voltage Accuracy—1.0 MHz, VOUT = 0.8 V
1.806 1.808 1.806 1.804 1.804 1.802 1.802 ) 1.800 1.800 V) (V E E ( 1.798 1.798 G AG A 1.796 T T L L O 1.796 1.794 V VO T 1.792 UT 1.794 P PU T 1.790 UT U O 1.792 O 1.788 1.790 1.786 V V V IN = 5.5V VIN = 13V VIN = 16V IN = 5.5V VIN = 13V IN = 16.5V 1.784 +125°C +125°C +125°C +125°C +125°C +125°C 1.788 +25°C +25°C +25°C +25°C +25°C +25°C 1.782 –40°C –40°C –40°C –40°C –40°C –40°C 1.786 1.780
6 9
0 1.5k 3.0k 4.5k 6.0k 7.5k 9.0k 10.5k 12.0k 13.5k 15.0k 0 1.5k 3.0k 4.5k 6.0k 7.5k 9.0k 10.5k 12.0k 13.5k 15.0k
01 -01 1- 01
LOAD CURRENT (mA) LOAD CURRENT (mA)
90 89 0 08 Figure 17. Output Voltage Accuracy—600 kHz, V Figure 20. Output Voltage Accuracy—1.0 MHz, V OUT = 1.8 V OUT = 1.8 V
5.015 4.060 4.055 5.010 4.050 5.005 4.045 ) ) V V ( 5.000 ( 4.040 E E 4.035 AG AG T 4.995 T L L O O 4.030 V V 4.990 4.025 UT UT P P 4.020 UT 4.985 UT O O 4.015 4.980 V V V DD = 5.5V, VIN = 13V VDD = 5.5V, VIN = 16.5V 4.010 IN = 13V IN = 16.5V +125°C +125°C +125°C +125°C 4.975 +25°C +25°C 4.005 +25°C +25°C –40°C –40°C –40°C –40°C 4.970 4.000
0 17
0 1k 2k 3k 4k 5k 6k 7k 8k 9k 10k 0 8.0k 1.6k 2.4k 3.2k 4.0k 4.8k 5.6k 6.4k 7.2k 8.0k
0 02 1- 1- 90 90
LOAD CURRENT (mA) LOAD CURRENT (mA)
08 08 Figure 18. Output Voltage Accuracy—600 kHz, V Figure 21. Output Voltage Accuracy—1.0 MHz, V OUT = 5 V OUT = 4 V Rev. 0 | Page 9 of 40 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATIONS CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE BOUNDARY CONDITION ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS ADP1882/ADP1883 BLOCK DIAGRAM THEORY OF OPERATION STARTUP SOFT START PRECISION ENABLE CIRCUITRY UNDERVOLTAGE LOCKOUT THERMAL SHUTDOWN PROGRAMMING RESISTOR (RES) DETECT CIRCUIT VALLEY CURRENT-LIMIT SETTING HICCUP MODE DURING SHORT CIRCUIT SYNCHRONOUS RECTIFIER POWER SAVING MODE (PSM) VERSION (ADP1883) TIMER OPERATION PSEUDO-FIXED FREQUENCY APPLICATIONS INFORMATION FEEDBACK RESISTOR DIVIDER INDUCTOR SELECTION OUTPUT RIPPLE VOLTAGE (ΔVRR) OUTPUT CAPACITOR SELECTION COMPENSATION NETWORK Output Filter Impedance (ZFILT) Error Amplifier Output Impedance (ZCOMP) Error Amplifier Gain (GM) Current-Sense Loop Gain (GCS) Crossover Frequency EFFICIENCY CONSIDERATIONS Channel Conduction Loss MOSFET Driver Loss Switching Loss Diode Conduction Loss Inductor Loss INPUT CAPACITOR SELECTION THERMAL CONSIDERATIONS DESIGN EXAMPLE Input Capacitor Inductor Current Limit Programming Output Capacitor Feedback Resistor Network Setup Compensation Network Loss Calculations EXTERNAL COMPONENT RECOMMENDATIONS LAYOUT CONSIDERATIONS IC SECTION (LEFT SIDE OF EVALUATION BOARD) POWER SECTION DIFFERENTIAL SENSING TYPICAL APPLICATIONS CIRCUITS DUAL-INPUT, 300 kHz HIGH CURRENT APPLICATIONS CIRCUIT SINGLE-INPUT, 600 kHz APPLICATIONS CIRCUIT DUAL-INPUT, 300 kHz HIGH CURRENT APPLICATIONS CIRCUIT OUTLINE DIMENSIONS ORDERING GUIDE