Datasheet ADP5134 (Analog Devices) - 8

ADP5134 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS
VVIN1 = VVIN2 = VVIN3 = VVIN4 = 3.6 V, TA = 25°C, unless otherwise noted.
160 3.320 3.315 140 3.310 120 TA = –40°C (µA) 3.305 NT 100 3.300 (V) T 1 A = +25°C 80 3.295 CURRE UT NT V VO 3.290 60 ESCE 3.285 UI TA = +85°C Q 40 3.280 20 3.275 0 3.270 2.5 3.0 3.5 4.0 4.5 5.0 5.5
003
0 0.2 0.4 0.6 0.8 1.0 1.2
006
INPUT VOLTAGE (V) I
11710-
VOUT1 (A)
11710- Figure 3. System Quiescent Current vs. Input Voltage, VVOUT1 = 3.3 V, Figure 6. BUCK1 Load Regulation Across Temperature, VVIN1 = 4.2 V, VVOUT1 = VVOUT2 = 1.8 V, VVOUT3 = 1.2 V, VVOUT4 = 3.3 V, All Channels Unloaded 3.3 V, PWM Mode
1.812 1.810 TA = –40°C SW1 1.808 4 IVOUT1 TA = +25°C 2 1.806 (V) 2UT 1.804 V VO VVOUT1 1 1.802 TA = +85°C 1.800 3 EN1 1.798 CH1 2.00V BW CH2 50.0mA BW M 0.0µs A CH3 2.40V 0 0.2 0.4 0.6 0.8 1.0 1.2
007
CH3 5.00V
004
BW CH4 5.00V BW IVOUT2 (A)
11710- 11710- Figure 4. BUCK1 Startup, VVIN1 = 4.2 V, VVOUT1 = 1.8 V, IVOUT1 = 5 mA Figure 7. BUCK2 Load Regulation Across Temperature, VVIN2 = 3.6 V, VVOUT2 = 1.8 V, PWM Mode
0.808 T 0.807 SW2 4 0.806 I T VOUT2 A = +25°C 2 (V) 1 0.805 UT V VO T TA = –40°C A = +85°C VVOUT2 0.804 1 0.803 3 EN2 0.802 CH1 2.00V BW CH2 50.0mA BW M 0.0µs A CH3 2.40V 0 0.2 0.4 0.6 0.8 1.0 1.2
008
CH3 5.00V
005
BW CH4 5.00V BW T 10.10% IVOUT1 (A)
11710- 11710- Figure 5. BUCK2 Startup, VVIN2 = 4.2 V, VVOUT2 = 3.3 V, IVOUT2 = 10 mA Figure 8. BUCK1 Load Regulation Across Input Voltage, VVIN1 = 3.6 V, VVOUT1 = 0.8 V, PWM Mode Rev. A | Page 8 of 28 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION 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 Power-Good Output Thermal Protection Undervoltage Lockout Precision Enable and Shutdown Control BUCK1 AND BUCK2 Control Scheme PWM Mode Power Save Mode (PSM) PSM Current Threshold Oscillator and Phasing of Inductor Switching Short-Circuit Protection Buck Regulator Soft Start Current Limit 100% Duty Operation Active Pull-Down Resistors LDO1 AND LDO2 LDO Regulator Soft Start APPLICATIONS INFORMATION BUCK REGULATOR EXTERNAL COMPONENT SELECTION Feedback Resistors Inductor Output Capacitor Input Capacitor LDO REGULATOR 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