Datasheet ADP1882, ADP1883 (Analog Devices) - 7

ADP1882/ADP1883 TYPICAL PERFORMANCE CHARACTERISTICS 100 100 V 95 DD = 5.5V, VIN = 5.5V (PSM) VDD = 5.5V, VIN = 5.5V 95 VDD = 5.5V, VIN = 5.5V (PSM) V VDD = 5.5V, V DD = 5.5V, VIN = 13V (PSM) 90 DD = 5.5V, VIN = 5.5V V 90 IN = 13V (PSM) 85 85 80 80 75 ) ) 75 V % DD = 3.6V, % 70 V ( DD = 5.5V, V ( IN = 13V V Y 70 V 65 IN = 13V DD = 5.5V, VIN = 16.5V (PSM) (PSM) C (PSM) N NCY 60 65 E VDD = 5.5V, VIN = 13V IE 55 IC 60 VDD = 5.5V, VIN = 16.5V (PSM) ICI F F 50 V F DD = 5.5V, VIN = 16.5V EF 55 E 45 VDD = 3.6V, VIN = 16.5V (PSM) 50 40 V V DD = 3.6V, VIN = 5.5V (PSM) DD = 3.6V, VIN = 5.5V 45 35 30 40 WURTH INDUCTOR: 744355072, L = 0.72µH, DCR: 1.65mΩ INFINEON FETS: BSC042N03MS G (UPPER/LOWER) WURTH IND: 744355147, L = 0.47 µH, DCR: 0.80MΩ 25 35 R INFENION FETs: BSC042N03MS G (UPPER/LOWER) 20 ON: 5.4mΩ TA = 25°C TA = 25°C 30 15
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100 1k 10k 100k
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LOAD CURRENT (mA)
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LOAD CURRENT (mA)
90 08 08 Figure 4. Efficiency—300 kHz, VOUT = 0.8 V Figure 7. Efficiency—600 kHz, VOUT = 0.8 V
100 100 V V DD = 5.5V, VIN = 5.5V (PSM) V DD = 5.5V, VIN = 5.5V 95 DD = 5.5V, VIN = 5.5V 95 90 90 85 VDD = 5.5V, VIN = 16.5V 85 V 80 DD = 5.5V, VDD = 5.5V, VIN = 13V (PSM) 80 VIN = 13V VDD = 3.6V, VIN = 5.5V ) 75 V ) 75 DD = 5.5V, VIN = 16.5V (PSM) % % VDD = 5.5V, VIN = 5.5V (PSM) ( 70 ( 70 Y Y C V 65 C V 65 DD = 5.5V, VIN = 16.5V (PSM) N DD = 3.6V, VIN = 5.5V IE 60 IEN 60 VDD = 5.5V, VIN = 13V (PSM) IC IC F 55 F 55 V EF EF DD = 5.5V, VIN = 16.5V 50 50 V 45 45 DD = 5.5V, VIN = 13V 40 40 WURTH INDUCTOR: 7443252100, L = 1.0µH, DCR: 3.3mΩ WURTH INDUCTOR: 744325072, L = 0.72µH, DCR: 1.65mΩ 35 35 INFINEON MOSFETS: BSC042N03MS G (UPPER/LOWER) INFINEON FETS: BSC042N03MS G (UPPER/LOWER) R 30 RON: 5.4mΩ 30 ON: 5.4mΩ T T A = 25°C A = 25°C 25 25
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100 1k 10k 100k
05
100 1k 10k 100k
-0 -00 01 01
LOAD CURRENT (mA)
89
LOAD CURRENT (mA)
89 0 0 Figure 5. Efficiency—300 kHz, VOUT = 1.8 V Figure 8. Efficiency—600 kHz, VOUT = 1.8 V
100 100 VDD = 5.5V, VIN = 16.5V (PSM) VDD = 5.5V/VIN = 13V (PSM) 95 95 90 VDD = 3.6V/VIN = 13V 85 90 VDD = 2.7V, VIN = 16.5V (PSM) 80 85 ) ) 75 % VDD = 2.7V, VIN = 13V % ( ( 80 VDD = 5.5V/VIN = 16.5V Y 70 Y C VDD = 5.5V, VIN = 13V C N 65 V 75 IE DD = 3.6V, VIN = 13V IEN IC 60 IC F VDD = 5.5V, VIN = 16.5V F V 70 DD = 5.5V/VIN = 13V EF 55 VDD = 3.6V, VIN = 16.5V EF TA = 25°C 50 65 T VOUT = 5V, VIN = 13V A = 25°C F 45 VOUT = 1.8V SW = 600kHz F 60 SW = 300kHz 40 WURTH INDUCTOR: WURTH INDUCTOR: 744355200, L = 2µH, DCR: 2.5mΩ 55 7443552100, L = 1.0µH, DCR: 3.3mΩ 35 INFINEON MOSFETS: INFINEON MOSFETS: BSC042N03MS G (UPPER/LOWER) BSC042N03MS G (UPPER/LOWER) 30 50
6 09
100 1k 10k 100k 100 1k 10k 100k
0 -00 1- 01 90
LOAD CURRENT (mA)
89
LOAD CURRENT (mA)
08 0 Figure 6. Efficiency—300 kHz, VOUT = 7 V Figure 9. Efficiency—600 kHz, VOUT = 5 V Rev. 0 | Page 7 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