Datasheet ADM7154 (Analog Devices) - 8

ADM7154 Data Sheet 10 10 9 9 8 8 ) ) A A m 7 7 ( (µ T T N 6 N 6 E E R RR 5 R U 5 CU C D ND 4 N 4 U OU RO 3 I 3 LOAD = 1mA ILOAD = 5mA G GR ILOAD = 10mA ILOAD = 10mA 2 I 2 LOAD = 100mA ILOAD = 100mA ILOAD = 200mA ILOAD = 200mA 1 I 1 LOAD = 400mA ILOAD = 400mA ILOAD = 600mA ILOAD = 600mA 0 0
1
3.5 4.0 4.5 5.0 5.5
1 0
3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8
014 4- 4-
VIN (V) V
1232
IN (V)
1232 Figure 11. Ground Current vs. Input Voltage (VIN) at Various Loads, Figure 14. Ground Current vs. Input Voltage (VIN) in Dropout, VOUT = 3.3 V VOUT = 3.3 V
160 1.820 140 1.815 120 1.810 ) V 100 1.805 (m ) T U (V 80 T 1.800 O P OU O V 60 DR 1.795 40 ILOAD = 1mA 1.790 ILOAD = 10mA ILOAD = 100mA 20 1.785 ILOAD = 200mA ILOAD = 400mA I 0 LOAD = 600mA 1.780
2
1 10 100 1000
015 -01
–40 –5 25 85 125
24-
I
324
LOAD (mA) JUNCTION TEMPERATURE (°C)
12 123 Figure 12. Dropout Voltage vs. Load Current (ILOAD), VOUT = 3.3 V Figure 15. Output Voltage (VOUT) vs. Junction Temperature (TJ) at Various Loads, VOUT = 1.8 V
3.40 1.820 3.35 1.815 3.30 1.810 3.25 1.805 ) ) (V (V T 3.20 T 1.800 OU OU V V 3.15 1.795 ILOAD = 5mA 3.10 I 1.790 LOAD = 10mA ILOAD = 100mA 3.05 ILOAD = 200mA 1.785 ILOAD = 400mA ILOAD = 600mA 3.00 1.780
16
3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8
013
1 10 100 1000
-0 4-
VIN (V) I
1232
LOAD (mA)
12324 Figure 13. Output Voltage (VOUT) vs. Input Voltage (VIN) in Dropout, Figure 16. Output Voltage (VOUT) vs. Load Current (ILOAD), VOUT = 1.8 V VOUT = 3.3 V Rev. B | Page 8 of 23 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION ADIsimPOWER DESIGN TOOL CAPACITOR SELECTION Output Capacitor Input and VREG Capacitor REF Capacitor BYP Capacitor Capacitor Properties UNDERVOLTAGE LOCKOUT (UVLO) PROGRAMMABLE PRECISION ENABLE START-UP TIME REF, BYP, AND VREG PINS CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS Thermal Characterization Parameter (ΨJB) PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE