Datasheet ADP170, ADP171 (Analog Devices) - 8

ADP170/ADP171 Data Sheet 5.0 400 V 4.5 IN = 2.1V V 350 IN = 2.3V 4.0 VIN = 2.7V V A) IN = 2.9V 300 µ V A) ( 3.5 IN = 3.2V µ V ( NT IN = 3.4V 250 3.0 V NT IN = 3.5V VIN = 3.6V 2.5 200 N CURRE W 2.0 150 UND CURRE DO 1.5 RO I HUT G LOAD = 1mA 100 S ILOAD = 10mA 1.0 ILOAD = 100mA 50 ILOAD = 200mA 0.5
014 011
ILOAD = 300mA 0
07716-
0
07716-
–50 –25 0 25 50 75 100 125 1.5 1.6 1.7 1.8 1.9 2.0 TEMPERATURE (°C) VIN (V)
Figure 11. Shutdown Current vs. Temperature at Various Input Voltages Figure 14. Ground Current vs. Input Voltage (In Dropout)
70 –30 300mA T 200mA 60 A = 25°C –40 100mA ) 10mA V 50 m 1mA ( –50 GE ) 40 B (d OLTA –60 T V 30 PSSR OU –70 OP R 20 D –80 10
012 015
0
07716-
–90
07716-
0.1 1 10 100 1k 10 100 1k 10k 100k 1M 10M LOAD CURRENT (mA) FREQUENCY (Hz)
Figure 12. Dropout Voltage vs. Load Current Figure 15. Power Supply Rejection Ratio vs. Frequency, VOUT = 0.8 V
1.85 –30 300mA 1.80 200mA –40 100mA 10mA 1.75 1mA –50 ) 1.70 B (V) ILOAD = 1mA (d UT –60 O ILOAD = 10mA V 1.65 ILOAD = 100mA PSSR ILOAD = 200mA I –70 1.60 LOAD = 300mA 1.55 –80
013 016
1.50
07716- 07716-
–90 1.55 1.60 1.65 1.70 1.75 1.80 1.85 1.90 10 100 1k 10k 100k 1M 10M VIN (V) FREQUENCY (Hz)
Figure 13. Output Voltage vs. Input Voltage (in Dropout) Figure 16. Power Supply Rejection Ratio vs. Frequency, VOUT = 1.8 V Rev. C | Page 8 of 20 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 Undervoltage Lockout Enable Feature Current Limit and Thermal Overload Protection Thermal Considerations Printed Circuit Board Layout Considerations Outline Dimensions Ordering Guide