Datasheet ADM7172 (Analog Devices) - 7

Data Sheet ADM7172 TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 5.5 V, VOUT = 5 V, ILOAD = 10 mA, CIN = COUT = 4.7 µF, TA = 25°C, unless otherwise noted.
5.10 7 ILOAD = 100µA 5.08 ILOAD = 10mA 6 ILOAD = 100mA 5.06 5.04 5 mA) ( 5.02 NT 4 (V) 5.00 UT OV 3 4.98 UND CURRE 4.96 I RO 2 LOAD = 100µA G I 4.94 LOAD = 10mA ILOAD = 100mA I 1 LOAD = 500mA I 4.92 LOAD = 500mA ILOAD = 1000mA ILOAD = 1000mA ILOAD = 2000mA ILOAD = 2000mA 4.90 0 –40 –5 25 85 125
004
–40 –5 25 85 125
007
JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C)
12250- 12250- Figure 4. Output Voltage (VOUT) vs. Junction Temperature Figure 7. Ground Current vs. Junction Temperature
5.05 7 5.04 6 5.03 5.02 5 mA) ( 5.01 NT 4 (V) 5.00 UT OV 3 4.99 UND CURRE 4.98 RO 2 G 4.97 1 4.96 4.95 0 0.1 1 10 100 1000 10000
005
0.1 1 10 100 1000 10000
008
I I LOAD (mA) LOAD (mA)
12250- 12250- Figure 5. Output Voltage (VOUT) vs. Load Current (ILOAD) Figure 8. Ground Current vs. Load Current (ILOAD)
5.05 7 ILOAD = 100µA ILOAD = 500mA 5.04 ILOAD = 10mA ILOAD = 1000mA 6 ILOAD = 100mA ILOAD = 2000mA 5.03 5.02 5 mA) ( 5.01 NT 4 (V) 5.00 UT OV 3 4.99 UND CURRE 4.98 I RO LOAD = 100µA 2 G ILOAD = 10mA 4.97 ILOAD = 100mA I 1 LOAD = 500mA 4.96 ILOAD = 1000mA ILOAD = 2000mA 4.95 0 5.4 5.6 5.8 6.0 6.2 6.4 6.6
006
5.5 5.7 5.9 6.1 6.3 6.5
009
VIN (V) VIN (V)
12250- 12250- Figure 6. Output Voltage (VOUT) vs. Input Voltage (VIN) Figure 9. Ground Current vs. Input Voltage (VIN) Rev. D | Page 7 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION 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 ADM7172 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