Datasheet ADP5138 (Analog Devices) - 6

ADP5138 Data Sheet LDO REGULATOR SPECIFICATIONS
VAVIN = 5.0 V, VPVIN5 = (output voltage of Channel 5 (VOUT5) + 0.5 V) or 3 V (whichever is greater), input capacitance of Channel 5 (CIN5) = output capacitance of Channel 5 (COUT5) = 1 μF, TJ = −40°C to +125°C for minimum and maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted.
Table 3. Parameter Symbol Test Conditions/Comments Min Typ Max Unit
CURRENT Operating Quiescent Current IQ_LDO5 IOUT5 = 0 µA, VOUT5 = 1.8 V 58 100 µA IOUT5 = 100 mA, VOUT5 = 1.8 V 146 300 µA Output Current IOUT5 VPVIN5 ≥ 3 V 250 mA 1.7 V ≤ VPVIN5 < 3 V 100 mA Current Limit VOUT5 drops 5% from nominal voltage 300 400 mA FEEDBACK FB5 Regulation Voltage VFB5 Adjustable version 0.788 0.8 0.812 V Fixed Output Voltage Accuracy VOUT5 IOUT5 = 10 mA, TJ = 25°C −1 +1 % 1 mA < IOUT5 < 250 mA −2 +2 % REGULATION Load Regulation IOUT5 from 1 mA to 250 mA 0.002 0.005 %/mA Line Regulation IOUT5 = 10 mA −0.1 +0.1 %/V DROPOUT VOLTAGE1 VDROPOUT5 VOUT5 = 3.3 V, IOUT5 = 250 mA 173 mV VOUT5 = 1.8 V, IOUT5 = 100 mA 132 mV OUTPUT DISCHARGE RESISTANCE RDISCHARGE5 83 120 Ω SOFT START TIME tSS5 VOUT5 = 1.8 V, IOUT5 = 250 mA 420 570 720 µs OUTPUT NOISE2 OUTNOISE5 10 Hz to 100 kHz, VPVIN5 = 5 V, VOUT5 = 1.8 V, IOUT5 = 20 µV rms 250 mA, adjustable output option POWER SUPPLY REJECTION RATIO2 PSRRLDO5 1 kHz, VPVIN5 = 5 V, VOUT5 = 1.8 V, IOUT5 = 250 mA, 55 dB adjustable output option 1 Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. 2 Bench characterization result. Rev. A | Page 6 of 23 Document Outline Features Applications Typical Application Circuit General Description Revision History Functional Block Diagram Specifications Buck Regulator Specifications LDO Regulator Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme Precision Enable and Shutdown Oscillator and Phase Shift Synchronization Input Overvoltage Lockout (OVLO) Input Undervoltage Monitor (UVM) Input Undervoltage Lockout (UVLO) Output Voltage Power-Good Power-On Reset (POR) Soft Start and Power-Up Sequence Current-Limit and Short-Circuit Protection Active Output Discharge Thermal Shutdown Applications Information Input Capacitor Selection Output Voltage Setting Inductor Selection Output Capacitor Selection Application Circuit Factory-Programmable Options Outline Dimensions Ordering Guide Automotive Products