Datasheet ADP5024 (Analog Devices) - 4

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ADP5024 Data Sheet BUCK1 AND BUCK2 SPECIFICATIONS
VAVIN = VIN1 = VIN2 = 2.3 V to 5.5 V; TJ = −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted.1
Table 3. Parameter Symbol Test Conditions/Comments Min Typ Max Unit
OUTPUT CHARACTERISTICS Output Voltage Accuracy ΔVOUT1/VOUT1, ILOAD1 = ILOAD2 = 0 mA −1.8 +1.8 % ΔVOUT2/VOUT2 Line Regulation (ΔVOUT1/VOUT1)/ΔVIN1, PWM mode −0.05 %/V (ΔVOUT2/VOUT2)/ΔVIN2 Load Regulation (ΔVOUT1/VOUT1)/ΔIOUT1, ILOAD = 0 mA to 1200 mA, PWM mode −0.1 %/A (ΔVOUT2/VOUT2)/ΔIOUT2 VOLTAGE FEEDBACK VFB1, VFB2 Models with adjustable outputs 0.491 0.5 0.509 V OPERATING SUPPLY CURRENT MODE = ground BUCK1 Only IIN ILOAD1 = 0 mA, device not switching, all other 44 μA channels disabled BUCK2 Only IIN ILOAD2 = 0 mA, device not switching, all other 55 μA channels disabled BUCK1 and BUCK2 IIN ILOAD1 = ILOAD2 = 0 mA, device not switching, LDO 67 μA channels disabled PSM CURRENT THRESHOLD IPSM PSM to PWM operation 100 mA SW CHARACTERISTICS SW On Resistance RNFET VIN1 = VIN2 = 3.6 V 155 240 mΩ RPFET VIN1 = VIN2 = 3.6 V 205 310 mΩ RNFET VIN1 = VIN2 = 5.5 V 137 204 mΩ RPFET VIN1 = VIN2 = 5.5 V 162 243 mΩ Current Limit ILIMIT1, ILIMIT2 PFET switch peak current limit 1600 1950 2300 mA ACTIVE PULL-DOWN RPDWN-B Channel disabled 75 Ω OSCILLATOR FREQUENCY fSW 2.5 3.0 3.5 MHz 1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). Rev. E | Page 4 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