Datasheet ADP151 (Analog Devices) - 4

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ADP151 Data Sheet Parameter Symbol Test Conditions/Conditions Min Typ Max Unit
START-UP TIME3 tSTART-UP VOUT = 3.3 V 180 µs CURRENT-LIMIT THRESHOLD4 ILIMIT TJ = 0°C to +125°C 220 300 400 mA W grade, TJ = −40°C to +125°C 205 300 400 mA UNDERVOLTAGE LOCKOUT TJ = −40°C to +125°C Input Voltage Rising UVLORISE 1.96 V W grade 1.86 V Input Voltage Falling UVLOFALL 1.28 V Hysteresis UVLOHYS 120 mV THERMAL SHUTDOWN Thermal Shutdown Threshold TSSD TJ rising 150 °C Thermal Shutdown Hysteresis TSSD-HYS 15 °C EN INPUT EN Input Logic High VIH 2.2 V ≤ VIN ≤ 5.5 V 1.2 V EN Input Logic Low VIL 2.2 V ≤ VIN ≤ 5.5 V 0.4 V EN Input Pul -Down Resistance REN VIN = EN voltage (VEN) = 5.5 V 2.6 MΩ OUTPUT NOISE OUTNOISE 10 Hz to 100 kHz, VIN = 5 V, VOUT = 3.3 V 9 µV rms 10 Hz to 100 kHz, VIN = 5 V, VOUT = 2.5 V 9 µV rms 10 Hz to 100 kHz, VIN = 5 V, VOUT = 1.1 V 9 µV rms POWER SUPPLY REJECTION RATIO PSRR VIN = VOUT + 0.5 V 10 kHz, VIN = 3.8 V, VOUT = 3.3 V, IOUT = 10 mA 70 dB 100 kHz, VIN = 3.8 V, VOUT = 3.3 V, IOUT = 10 mA 55 dB VIN = VOUT + 1 V 10 kHz, VIN = 4.3 V, VOUT = 3.3 V, IOUT = 10 mA 70 dB 100 kHz, VIN = 4.3 V, VOUT = 3.3 V, IOUT = 10 mA 55 dB 10 kHz, VIN = 2.2 V, VOUT = 1.1 V, IOUT = 10 mA 70 dB 100 kHz, VIN = 2.2 V, VOUT = 1.1 V, IOUT = 10 mA 55 dB 1 Based on an end-point calculation using 0.1 mA and 200 mA loads. See Figure 8 for typical load regulation performance for loads less than 1 mA. 2 Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This voltage applies only for output voltages above 2.2 V. 3 Start-up time is defined as the time between the rising edge of EN and VOUT being at 90% of its nominal value. 4 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 (that is, 2.7 V).
INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS Table 2. Parameter Symbol Test Conditions/Comments Min Typ Max Unit
Minimum Input and Output Capacitance1 CMIN TA = −40°C to +125°C 0.7 µF Capacitor 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 ful range of operating conditions. The ful 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, and Y5V and Z5U capacitors are not recommended for use with any low dropout (LDO) regulator. Rev. H | Page 4 of 23 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUITS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS 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 Input Bypass Capacitor Input and Output Capacitor Properties ENABLE FEATURE ADJUSTABLE OUTPUT VOLTAGE OPERATION CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS