Datasheet ADP5034 (Analog Devices) - 5

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Data Sheet ADP5034 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, PWM mode; 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 44 μA other channels disabled BUCK2 Only IIN ILOAD2 = 0 mA, device not switching, all 55 μA other channels disabled BUCK1 and BUCK2 IIN ILOAD1 = ILOAD2 = 0 mA, device not switching, 67 μA LDO channels disabled PSM CURRENT THRESHOLD IPSM PSM to PWM operation 100 mA SW CHARACTERISTICS SW On Resistance RNFET VIN1 = VIN2 = 3.6 V; LFCSP package 155 240 mΩ RPFET VIN1 = VIN2 = 3.6 V; LFCSP package 205 310 mΩ RNFET VIN1 = VIN2 = 5.5 V; LFCSP package 137 204 mΩ RPFET VIN1 = VIN2 = 5.5 V; LFCSP package 162 243 mΩ RNFET VIN1 = VIN2 = 3.6 V; TSSOP package 156 237 mΩ RPFET VIN1 = VIN2 = 3.6 V; TSSOP package 194 270 mΩ RNFET VIN1 = VIN2 = 5.5 V; TSSOP package 137 202 mΩ RPFET VIN1 = VIN2 = 5.5 V; TSSOP package 154 212 mΩ Current Limit ILIMIT1, ILIMIT2 pFET switch peak current limit 1600 1950 2300 mA ACTIVE PULL-DOWN RPDWN-B VIN1= VIN2 = 3.6 V; 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).
LDO1 AND LDO2 SPECIFICATIONS
VIN3 = (VOUT3 + 0.5 V) or 1.7 V (whichever is greater) to 5.5 V, VIN4 = (VOUT4 + 0.5 V) or 1.7 V (whichever is greater) to 5.5 V; CIN = COUT = 1 µF; TJ = −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted.1
Table 4. Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT VOLTAGE RANGE VIN3, VIN4 1.7 5.5 V OPERATING SUPPLY CURRENT Bias Current per LDO2 IVIN3BIAS/IVIN4BIAS IOUT3 = IOUT4 = 0 µA 10 30 µA IOUT3 = IOUT4 = 10 mA 60 100 µA IOUT3 = IOUT4 = 300 mA 165 245 µA Total System Input Current IIN Includes all current into AVIN, VIN1, VIN2, VIN3, and VIN4 LDO1 or LDO2 Only IOUT3 = IOUT4 = 0 µA, all other channels disabled 53 µA LDO1 and LDO2 Only IOUT3 = IOUT4 = 0 µA, buck channels disabled 74 µA Rev. E | Page 5 of 28 Document Outline Features Applications General Description Typical Application Circuit 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 Power Save 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 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