Datasheet ADP2114 (Analog Devices) - 8

ADP2114 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 100 100 95 95 90 90 ) ) % 85 % 85 NCY ( 80 NCY ( E 80 E ICI ICI F F VIN = 5V, F 75 F E 75 E VOUT = 2.5V FORCED PWM VIN = 5V, 70 70 V V OUT = 2.5V PULSE SKIP OUT = 3.3V V V IN = 3.3V, OUT = 3.3V; PULSE SKIP V 65 OUT = 1.2V FORCED PWM V 65 OUT = 1.8V VIN = 3.3V, VOUT = 1.8V; PULSE SKIP VOUT = 1.2V PULSE SKIP 60 60 10 100 1k 10k
004
10 100 1k 10k
006
LOAD CURRENT (mA)
8143-
LOAD CURRENT (mA)
8143- 0 0 Figure 4. Channel 1 Efficiency vs. Load, VIN = 5 V and fsw = 300 kHz; Figure 6. Efficiency vs. Load at fSW = 1.2 MHz; VOUT = 3.3 V, Inductor Cooper Bussmann DR1050-8R2-R, 8.2 μH, 15 mΩ; Inductor TOKO FDV0620-1R0M, 1.0 μH, 14 mΩ VOUT = 1.8 V, Inductor TOKO FDV0620-4R7M, 4.7 μH, 53 mΩ
100 90 95 85 90 VIN = 3.3V ) ) 80 % 85 % VIN = 5V NCY ( 80 NCY ( E 75 E ICI ICI F F F 75 F E E 70 70 VOUT = 3.3V VOUT = 3.3V; PULSE SKIP 65 65 VOUT = 1.8V VOUT = 1.8V; PULSE SKIP 60 60 10 100 1k 10k
005
100 1k 10k
007
LOAD CURRENT (mA)
8143-
LOAD CURRENT (mA)
8143- 0 0 Figure 5. Channel 2 Efficiency vs. Load, VIN = 5 V and fSW = 600 kHz; Figure 7. Efficiency Combined Dual-Phase Output, VOUT = 0.8 V and VOUT = 3.3 V, Inductor TOKO FDV0620-4R7M, 4.7 μH, 53 mΩ; fSW = 1.2 MHz; Inductor TOKO FDV0620-1R0M, 1.0 μH, 14 mΩ VOUT = 1.8 V, Inductor TOKO FDV0620-2R2M, 2.2 μH, 30 mΩ Rev. C | Page 8 of 37 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS SUPPLY CURRENT LOAD TRANSIENT RESPONSE BODE PLOTS SIMPLIFIED BLOCK DIAGRAM THEORY OF OPERATION ADIsimPower DESIGN TOOL CONTROL ARCHITECTURE UNDERVOLTAGE LOCKOUT (UVLO) ENABLE/DISABLE CONTROL SOFT START POWER GOOD PULSE SKIP MODE HICCUP MODE CURRENT LIMIT THERMAL OVERLOAD PROTECTION MAXIMUM DUTY CYCLE OPERATION SYNCHRONIZATION CONVERTER CONFIGURATION SELECTING THE OUTPUT VOLTAGE SETTING THE OSCILLATOR FREQUENCY SYNCHRONIZATION AND CLKOUT OPERATION MODE CONFIGURATION EXTERNAL COMPONENTS SELECTION INPUT CAPACITOR SELECTION VDD RC FILTER INDUCTOR SELECTION OUTPUT CAPACITOR SELECTION CONTROL LOOP COMPENSATION DESIGN EXAMPLE CHANNEL 1 CONFIGURATION AND COMPONENTS SELECTION CHANNEL 2 CONFIGURATION AND COMPONENTS SELECTION SYSTEM CONFIGURATION APPLICATION CIRCUITS POWER DISSIPATION, THERMAL CONSIDERATIONS CIRCUIT BOARD LAYOUT RECOMMENDATIONS OUTLINE DIMENSIONS ORDERING GUIDE