Datasheet ADP5033 (Analog Devices) - 8

ADP5033 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS
VIN1= VIN2 = VIN3= VIN4 = 3.6 V, TA = 25°C, unless otherwise noted.
3.310 140 3.305 –40°C 120 3.300 A) µ ( 100 +25°C NT 3.295 (V) 80 3.290 UT CURRE OV NT 60 3.285 CE S E +85°C UI 40 3.280 Q 20 3.275 3.270 02.3 2.8 3.3 3.8 4.3 4.8 5.3 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
139 225
IOUT (A) INPUT VOLTAGE (V)
09788- 09788- 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, VOUT4 = 3.3 V, All Channels Unloaded VOUT1 = 3.3 V, PWM Mode
1.812 T 1.810 SW –40°C 4 1.808 IOUT 2 +25°C 1.806 (V) UT O VOUT V 1.804 1 EN 1.802 +85°C 3 1.800 1.798 CH1 2.00V BW CH2 50.0mA Ω BW M 40.0µs A CH3 2.2V
249
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
224
CH3 5.00V BW CH4 5.00V BW T 11.20% I
09788-
OUT (A)
09788- 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
0.808 T 0.807 SW 4 +25°C IOUT 0.806 2 –40°C (V) 0.805 UT O VOUT V 1 0.804 +85°C EN 0.803 3 0.802 CH1 2.00V BW CH2 50.0mA Ω BW M 40.0µs A CH3 2.2V
248
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
226
CH3 5.00V BW CH4 5.00V BW T 11.20% I
09788-
OUT (A)
09788- 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. G | Page 8 of 28 Document Outline Features Applications Typical Application Circuit General Description Table of Contents Revision History Specifications General Specifications BUCK1 and BUCK2 Specifications LDO1 and LDO2 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 PSM PSM Current Threshold Oscillator/Phasing of Inductor Switching Short-Circuit Protection Soft Start Current Limit 100% Duty Operation Active Pull-Downs LDO1 and LDO2 Applications Information Buck External Component Selection Inductor Output Capacitor Input Capacitor LDO Capacitor Selection 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 Schematic Outline Dimensions Ordering Guide