Datasheet ADP165, ADP166 (Analog Devices) - 4

ADP165/ADP166 Data Sheet Parameter Symbol Test Conditions/Comments Min Typ Max Unit
UNDERVOLTAGE LOCKOUT (UVLO) Input Voltage Rising UVLORISE 2.19 V Input Voltage Falling UVLOFALL 1.60 V Hysteresis UVLOHYS 85 mV OUTPUT NOISE OUTNOISE 10 Hz to 100 kHz, VIN = 5 V, VOUT = 3.3 V 105 µV rms 10 Hz to 100 kHz, VIN = 5 V, VOUT = 2.5 V 100 µV rms 10 Hz to 100 kHz, VIN = 5 V, VOUT = 1.2 V 80 µV rms POWER SUPPLY REJECTION RATIO PSRR 100 Hz, VIN = 5 V, VOUT = 3.3 V 60 dB 100 Hz, VIN = 5 V, VOUT = 2.5 V 65 dB 100 Hz, VIN = 5 V, VOUT = 1.2 V 72 dB 1 kHz, VIN = 5 V, VOUT = 3.3 V 50 dB 1 kHz, VIN = 5 V, VOUT = 2.5 V 50 dB 1 kHz, VIN = 5 V, VOUT = 1.2 V 62 dB 1 Accuracy when VOUT is connected directly to ADJ. When the VOUT voltage is set by the external feedback resistors, the absolute accuracy in adjust mode depends on the tolerances of the resistors used. 2 Based on an endpoint calculation using 0 μA and 150 mA loads. 3 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 2.2 V. 4 Start-up time is defined as the time between the rising edge of EN to VOUT being at 90% of its nominal value. 5 Current-limit threshold is defined as the current at which the output voltage 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.
RECOMMENDED SPECIFICATIONS: INPUT AND OUTPUT CAPACITORS Table 2. Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT AND OUTPUT CAPACITOR Minimum Input and Output Capacitance1 CIN; COUT CIN and COUT tolerance = ±30%, TA = −40°C to +125°C 0.7 1 µF Capacitor Effective Series Resistance (ESR) RESR TA = −40°C to +125°C 0.001 0.2 Ω 1 The minimum input and output capacitance must be greater than 0.7 µF over the full range of operating conditions. The full range of operating conditions in the application must be considered during device selection to ensure that the minimum capacitance specification is met. X7R and X5R type capacitors are recommended; however, Y5V and Z5U capacitors are not recommended for use with any LDO. Rev. A | Page 4 of 23 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUITS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS RECOMMENDED SPECIFICATIONS: INPUT AND OUTPUT CAPACITORS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION CAPACITOR SELECTION Output Capacitor, COUT Input Bypass Capacitor, CIN Input and Output Capacitor Properties ENABLE FEATURE UNDERVOLTAGE LOCKOUT (UVLO) CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS PCB LAYOUT CONSIDERATIONS LIGHT SENSITIVITY OF WLCSPs OUTLINE DIMENSIONS ORDERING GUIDE