Datasheet ADP7158 (Analog Devices) - 8

ADP7158 Data Sheet 14 14 ILOAD = 0mA 13 I 13 LOAD = 10mA 12 ILOAD = 100mA 12 I 11 LOAD = 600mA 11 ILOAD = 1200mA 10 I 10 LOAD = 2000mA 9 9 8 8 mA) mA) ( 7 ( 7 ND ND 6 I G 6 I G 5 5 ILOAD = 0mA 4 4 ILOAD = 10mA 3 3 ILOAD = 100mA I 2 2 LOAD = 600mA
1 1
ILOAD = 1200mA
014
1
0
1 ILOAD = 2000mA 0
12896-
0
12896-
3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 VIN (V) VIN (V)
Figure 11. Ground Current (IGND) vs. Input Voltage (VIN) Figure 14. Ground Current (IGND) vs. Input Voltage (VIN) at Various Loads in at Various Loads, VOUT = 3.3 V Dropout, VOUT = 3.3 V
0.25 1.85 ILOAD = 0mA 1.84 ILOAD = 10mA I 0.20 1.83 LOAD = 100mA ILOAD = 600mA 1.82 ILOAD = 1200mA ILOAD = 2000mA 0.15 (V) 1.81 UT (V) O P 1.80 UT OV DRO 0.10 V 1.79 1.78 0.05 1.77
012
1.76
015
0
12896-
1.75
12896-
10m 100 1 10 –40 –20 0 20 40 60 80 100 120 140 ILOAD (A) TEMPERATURE (ºC)
Figure 12. Dropout Voltage (VDROPOUT) vs. Load Current (ILOAD), VOUT = 3.3 V Figure 15. Output Voltage (VOUT) vs. Temperature at Various Loads, VOUT = 1.8 V
3.40 1.85 1.84 3.35 1.83 3.30 1.82 3.25 1.81 ILOAD = 0mA (V) I (V) LOAD = 10mA 3.20 1.80 UT UT O ILOAD = 100mA O V V ILOAD = 600mA 1.79 3.15 ILOAD = 1200mA I 1.78 LOAD = 2000mA 3.10 1.77 3.05 1.76
016 013
3.00
12896- 12896-
1.75 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 0.1m 1m 10m 100m 1 10 V I IN (V) LOAD (A)
Figure 13. Output Voltage (V Figure 16. Output Voltage (V OUT) vs. Input Voltage (VIN) at Various Loads in OUT) vs. Load Current (ILOAD), VOUT = 1.8 V Dropout, V OUT = 3.3 V Rev. C | Page 8 of 22 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INPUT AND OUTPUT CAPACITORS, RECOMMENDED 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 UVLO PROGRAMMABLE PRECISION ENABLE START-UP TIME REF, BYP, AND VREG PINS CURRENT LIMIT AND THERMAL SHUTDOWN THERMAL CONSIDERATIONS Thermal Characterization Parameter (ΨJB) PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE