Datasheet ADM7171 (Analog Devices) - 10

ADM7171 Data Sheet 16 1.24 ILOAD = 100µA I 14 1.23 LOAD = 10mA ILOAD = 100mA ILOAD = 500mA ) 12 1.22 ILOAD = 1000mA (mA 10 1.21 NT RE V) ( 8 T 1.20 CUR OU D ILOAD = 5mA V 6 UN ILOAD = 10mA 1.19 O I R LOAD = 100mA G I 4 LOAD = 500mA I 1.18 LOAD = 1000mA 2 1.17 0 1.16 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4
022
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5
25 0
VIN (V) V
12298-
IN (V)
12298- Figure 22. Ground Current vs. Input Voltage (VIN) in Dropout, VOUT = 3 V Figure 25. Output Voltage (VOUT) vs. Input Voltage (VIN), Adjustable Version, VOUT = 1.2 V
1.24 5.0 ILOAD = 100µA ILOAD = 100µA I ILOAD = 10mA 1.23 LOAD = 10mA 4.5 ILOAD = 100mA ILOAD = 100mA ILOAD = 500mA 4.0 ILOAD = 500mA I 1.22 ILOAD = 1000mA ) LOAD = 1000mA 3.5 (mA 1.21 ) NT 3.0 V ( T 1.20 RRE 2.5 OU CU V D 2.0 1.19 UN RO 1.5 1.18 G 1.0 1.17 0.5 1.16 0 –40 –5 25 85 125
023
–40 –5 25 85 125
-026
JUNCTION TEMPERATURE (°C)
12298-
JUNCTION TEMPERATURE (°C)
12298 Figure 23. Output Voltage (VOUT) vs. Junction Temperature, Figure 26. Ground Current vs. Junction Temperature, Adjustable Version, Adjustable Version, VOUT = 1.2 V VOUT = 1.2 V
1.24 4.5 1.23 4.0 3.5 1.22 ) A (m 3.0 1.21 T ) N V E 2.5 ( R T 1.20 R U OUV C 2.0 D 1.19 N OU 1.5 1.18 GR 1.0 1.17 0.5 1.16 0 0.1 1 10 100 1000
27 -024
0.1 1 10 100 1000
0
ILOAD (mA) I
12298
LOAD (mA)
12298- Figure 24. Output Voltage (VOUT) vs. Load Current (ILOAD), Adjustable Version, Figure 27. Ground Current vs. Load Current (ILOAD), Adjustable Version, VOUT = 1.2 V VOUT = 1.2 V Rev. E | Page 10 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT 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 ADIsimPOWER DESIGN TOOL CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties PROGRAMMABLE PRECISION ENABLE UNDERVOLTAGE LOCKOUT SOFT START NOISE REDUCTION OF THE ADM7171 IN ADJUSTABLE MODE EFFECT OF NOISE REDUCTION ON START-UP TIME CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS TYPICAL APPLICATIONS CIRCUITS PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE