Datasheet ADP5022 (Analog Devices) - 5

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ADP5022 LDO SPECIFICATIONS
VDDA = VIN1 = VIN2 = 3.6 V, VIN3 = (VOUT3 + 0.5 V) or 2.3 V, whichever is greater, VIN3 ≤ VIN1, IOUT3 = 10 mA; CIN3 = COUT3 = 1 μF, TJ = −40°C to +125°C, unless otherwise noted.1
Table 3. Parameter Symbol Test Conditions/Comments Min Typ Max Unit
OPERATING SUPPLY CURRENT2 IVIN3-GND IOUT3 = 0 μA 11 21 μA IOUT3 = 10 mA 16 29 μA IOUT3 = 150 mA 31 43 μA OUTPUT VOLTAGE ACCURACY VOUT3 100 μA < IOUT3 < 150 mA, −2 +2 % VIN3 = (VOUT3 + 0.5 V) to 5.5 V REGULATION Line Regulation ∆VOUT3/∆VIN3 VIN3 = (VOUT3 + 0.5 V) to 5.5 V, IOUT = 1 mA −0.03 +0.03 %/ V Load Regulation3 ∆VOUT3/∆IOUT3 IOUT3 = 1 mA to 150 mA 0.002 0.0075 %/mA DROPOUT VOLTAGE4 VDROPOUT VOUT3 = 3.0 V, IOUT3 = 10 mA 7 mV VOUT3 = 3.0 V, IOUT3 = 150 mA 110 150 mV START-UP TIME5 From Shutdown State TSTARTUP3-SD 200 μs CURRENT-LIMIT THRESHOLD6 ILIMIT3 160 240 350 mA OUTPUT NOISE OUTNOISE 10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 3.3 V 65 μV rms 10 Hz to 100 kHz, VIN3= 5 V, VOUT3 = 2.4 V 52 μV rms 10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 1.2 V 40 μV rms POWER SUPPLY REJECTION RATIO PSRR 10 kHz, VIN3 = 5 V, VOUT3 = 3.3 V 60 dB 10 kHz, VIN3 = 5 V, VOUT3 = 2.3 V 66 dB 10 kHz, VIN3 = 5 V, VOUT3 = 1.2 V 70 dB 1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control. 2 LDO operating supply current is the current drawn from VIN3 to AGND when the LDO is enabled. Whenever any regulator channel is enabled, current is drawn from VIN1 to AGND. This current is 8 μA typical and is included in the IGND1, IGND2, and IGND1-2 specifications. 3 Based on an end-point calculation using 1 mA and 150 mA loads. 4 Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This applies only for output voltages above 2.3 V. 5 Start-up time is defined as the time between the rising edge of EN3 to VOUT3 being at 90% of its nominal value. 6 Current-limit threshold is defined as the current at which VOUT3 drops to 90% of the specified typical value. For example, the current limit for a 3.0 V output voltage is defined as the current that causes the output voltage to drop to 90% of 3.0 V or 2.7 V. Rev. C | Page 5 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS BUCK1 AND BUCK2 SPECIFICATIONS LDO SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION POWER MANAGEMENT UNIT Thermal Protection Undervoltage Lockout Enable/Shutdown BUCK SECTION Control Scheme PWM Mode Power Save Mode (PSM) PSM Current Threshold Oscillator/Phasing of Inductor Switching Enable/Shutdown Short-Circuit Protection Soft Start Current Limit 100% Duty Operation LDO SECTION LDO Undervoltage Lockout APPLICATIONS INFORMATION BUCK EXTERNAL COMPONENT SELECTION Inductor Output Capacitor Input Capacitor LDO CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties PCB LAYOUT GUIDELINES EVALUATION BOARD SCHEMATICS AND ARTWORK SUGGESTED LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE