Datasheet ADM7160 (Analog Devices) - 4

link to page 15 link to page 4
ADM7160 Data Sheet Parameter Symbol Test Conditions/Comments Min Typ Max Unit
POWER SUPPLY REJECTION RATIO PSRR ILOAD = 100 mA VIN = VOUT + 0.5 V 100 kHz, VIN = 3.8 V, VOUT = 3.3 V 49 dB 500 kHz, VIN = 3.8 V, VOUT = 3.3 V 43 dB 1 MHz, VIN = 3.8 V, VOUT = 3.3 V 43 dB 100 kHz, VIN = 3.0 V, VOUT = 2.5 V 46 dB 500 kHz, VIN = 3.0 V, VOUT = 2.5 V 44 dB 1 MHz, VIN = 3.0 V, VOUT = 2.5 V 44 dB VIN = VOUT + 1 V 100 kHz, VIN = 4.3 V, VOUT = 3.3 V 54 dB 500 kHz, VIN = 4.3 V, VOUT = 3.3 V 46 dB 1 MHz, VIN = 4.3 V, VOUT = 3.3 V 46 dB 100 kHz, VIN = 3.5 V, VOUT = 2.5 V 49 dB 500 kHz, VIN = 3.5 V, VOUT = 2.5 V 47 dB 1 MHz, VIN = 3.5 V, VOUT = 2.5 V 47 dB 1 Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This specification applies only to output voltages greater than 2.2 V. 2 Start-up time is defined as the time from the rising edge of EN to when VOUT is at 90% of its nominal value. 3 Current-limit threshold is defined as the current at which the output voltage falls 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 fall to 90% of 3.0 V (that is, 2.7 V).
INPUT AND OUTPUT CAPACITORS, RECOMMENDED SPECIFICATIONS
TA = −40°C to +125°C.
Table 2. Parameter Symbol Min Typ Max Unit
Minimum Input and Output Capacitance1 CMIN 0.7 µF Capacitor ESR RESR 0.001 0.2 Ω 1 The minimum input and output capacitance should 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; Y5V and Z5U capacitors are not recommended for use with any LDO regulator. For more information, see the Input and Output Capacitor Properties section. Rev. A | Page 4 of 24 Document Outline Features Applications Application Circuit General Description Table of Contents Revision History Specifications Input and Output Capacitors, Recommended Specifications Absolute Maximum Ratings Thermal Data Thermal Resistance ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Theory of Operation Enable Feature Soft Start Current-Limit and Thermal Overload Protection Applications Information Capacitor Selection Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties Thermal Considerations PCB Layout Considerations Typical Application Circuits Outline Dimensions Ordering Guide