Datasheet ADP5024 (Analog Devices) - 9

Data Sheet ADP5024 TYPICAL PERFORMANCE CHARACTERISTICS
VIN1= VIN2 = VIN3= 3.6 V, TA = 25°C, unless otherwise noted.
3.310 140 –40°C +25°C 3.305 +85°C 120 A) µ 3.300 ( 100 NT 3.295 80 (V) CURRE 3.290 UT NT O 60 V CE S 3.285 E UI 40 Q 3.280 20 3.275 02.3 2.8 3.3 3.8 4.3 4.8 5.3 3.270
003
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2
006
INPUT VOLTAGE (V)
09888-
IOUT (A)
09888- Figure 3. System Quiescent Current vs. Input Voltage, VOUT1 = 3.3 V, Figure 6. BUCK1 Load Regulation Across Temperature ,VIN = 4.2 V, VOUT2 = 1.8 V, VOUT3 = 1.2 V, All Channels Unloaded VOUT1 = 3.3 V, PWM Mode
1.812 T –40°C +25°C +85°C 1.810 SW 4 1.808 IOUT 2 1.806 (V) UT O VOUT V 1.804 1 EN 1.802 3 1.800 1.798 CH1 2.00V BW CH2 50.0mA Ω BW M 40.0µs A CH3 2.2V
004
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 CH3 5.00V B
007
W CH4 5.00V BW T 11.20%
09888-
IOUT (A)
09888- Figure 4. BUCK1 Startup, VOUT1 = 1.8 V, IOUT1 = 5 mA Figure 7. BUCK2 Load Regulation Across Temperature, VIN = 3.6 V, VOUT2 = 1.8 V, PWM Mode
T 0.808 –40°C +25°C +85°C 0.807 SW 4 IOUT 2 0.806 (V) 0.805 UT O VOUT V 1 0.804 EN 0.803 3 CH1 2.00V B 0.802 W CH2 50.0mA Ω BW M 40.0µs A CH3 2.2V
005
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 CH3 5.00V B
008
W CH4 5.00V BW T 11.20%
09888-
IOUT (A)
09888- Figure 5. BUCK2 Startup, VOUT2 = 3.3 V, IOUT2 = 10 mA Figure 8. BUCK1 Load Regulation Across Temperature, VIN = 3.6 V, VOUT1 = 0.8 V, PWM Mode Rev. E | Page 9 of 28 Document Outline Features Applications General Description Typical Application Circuit Revision History Specifications General Specifications BUCK1 and BUCK2 Specifications LDO 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 Power Management Unit Thermal Protection Undervoltage Lockout Enable/Shutdown BUCK1 and BUCK2 Control Scheme PWM Mode Power Save Mode (PSM) PSM Current Threshold Oscillator/Phasing of Inductor Switching Short-Circuit Protection Soft Start Current Limit 100% Duty Operation Active Pull-Down Resistors LDO Applications Information Buck External Component Selection Feedback Resistors Inductor Output Capacitor Input Capacitor LDO External Component Selection Feedback Resistors Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties Power Dissipation and Thermal Considerations Buck Regulator Power Dissipation LDO Regulator Power Dissipation Junction Temperature PCB Layout Guidelines Typical Application Schematics Bill of Materials Outline Dimensions Ordering Guide