Datasheet ADP2138, ADP2139 (Analog Devices) - 6

ADP2138/ADP2139 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 3.6 V, TA = 25°C, VEN = VIN, unless otherwise noted.
100 100 90 90 80 80 70 70 %) %) ( 60 ( 60 NCY 50 NCY 50 E E ICI ICI F 40 F 40 F F E E 30 30 V V 20 IN = 2.3V 20 IN = 2.3V VIN = 3.6V VIN = 3.6V 10 VIN = 4.2V 10 VIN = 4.2V VIN = 5.5V VIN = 5.5V 0 0 0.001 0.01 0.1 1
003
0.001 0.01 0.1 1
006
IOUT (A) I
09496-
OUT (A)
09496- Figure 3. Efficiency vs. Load Current, Across Input Voltage, Figure 6. Efficiency vs. Load Current, Across Input Voltage, VOUT = 1.8 V, PSM Mode VOUT = 0.8 V, PWM Mode
100 100 90 90 80 80 70 70 %) %) ( 60 ( 60 NCY 50 NCY 50 E E ICI ICI F 40 F 40 F F E E 30 30 V 20 IN = 2.3V 20 VIN = 3.6V VIN = 3.9V 10 VIN = 4.2V 10 VIN = 4.2V VIN = 5.5V VIN = 5.5V 0 0 0.001 0.01 0.1 1
004
0.001 0.01 0.1 1
007
IOUT (A) I
09496-
OUT (A)
09496- Figure 4. Efficiency vs. Load Current, Across Input Voltage, Figure 7. Efficiency vs. Load Current, Across Input Voltage, VOUT = 1.8 V, PWM Mode VOUT = 3.3 V, PSM Mode
100 100 90 90 80 80 70 70 %) %) ( 60 ( 60 NCY 50 NCY 50 E E ICI ICI F 40 F 40 F F E E 30 30 V 20 IN = 2.3V 20 VIN = 3.6V VIN = 3.9V 10 VIN = 4.2V 10 VIN = 4.2V VIN = 5.5V VIN = 5.5V 0 0 0.001 0.01 0.1 1
005
0.001 0.01 0.1 1
008
IOUT (A) I
09496-
OUT (A)
09496- Figure 5. Efficiency vs. Load Current, Across Input Voltage, Figure 8. Efficiency vs. Load Current, Across Input Voltage, VOUT = 0.8 V, PSM Mode VOUT = 3.3 V, PWM Mode Rev. C | Page 6 of 20 Document Outline Features Applications General Description Typical Applications Circuit Revision History Table of Contents Specifications Input and Output Capacitor, Recommended Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme PWM Mode Power Save Mode Power Save Mode Current Threshold Enable/Shutdown Short-Circuit Protection Undervoltage Lockout Thermal Protection Soft Start Current Limit 100% Duty Operation Discharge Switch Applications Information ADIsimPower Design Tool External Component Selection Inductor Thermal Considerations PCB Layout Guidelines Evaluation Board Evaluation Board Layout Outline Dimensions Ordering Guide