Datasheet ADP172 (Analog Devices) - 8

ADP172 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 ILOAD = 1mA HUT G 100 S ILOAD = 10mA 1.0 ILOAD = 100mA 50 ILOAD = 200mA 0.5 ILOAD = 300mA 0 0 –50 –25 0 25 50 75 100 125 1.5 1.6 1.7 1.8 1.9 2.0
011 014
TEMPERATURE (°C) VIN (V)
06111- 06111- Figure 9. Shutdown Current vs. Temperature at Various Input Voltages Figure 12. Ground Current vs. Input Voltage (in Dropout)
70 –30 300mA T 200mA 60 A = 25°C –40 100mA ) 10mA V 50 1mA m ( –50 GE B) 40 d OLTA –60 RR ( S T V 30 P OU –70 OP R 20 D –80 10 0 –90 0.1 1 10 100 1000 10 100 1k 10k 100k 1M 10M
015 012
LOAD CURRENT (mA) FREQUENCY (Hz)
06111- 06111- Figure 10. Dropout Voltage vs. Load Current Figure 13. 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) d ILOAD = 1mA UT –60 O ILOAD = 10mA RR ( V 1.65 I S LOAD = 100mA P ILOAD = 200mA I –70 1.60 LOAD = 300mA 1.55 –80 1.50 –90 1.55 1.60 1.65 1.70 1.75 1.80 1.85 1.90
013
10 100 1k 10k 100k 1M 10M
016
VIN (V) FREQUENCY (Hz)
06111- 06111- Figure 11. Output Voltage vs. Input Voltage (in Dropout) Figure 14. Power Supply Rejection Ratio vs. Frequency, VOUT = 1.8 V Rev. E | 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 Configuration 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