Data SheetADM71551.2410ILOAD = 1mA91.23ILOAD = 10mAILOAD = 100mAI81.22LOAD = 200mAI)LOAD = 400mAI7LOAD = 600mA(mA1.21T)N6E(V T 1.20RR5OUVCU41.19UND O3RILOAD = 1mA1.18GILOAD = 10mA2ILOAD = 100mA1.17ILOAD = 200mA1ILOAD = 400mAILOAD = 600mA1.1602.02.53.03.54.04.55.05.52.02.53.03.54.04.55.05.5 -017 -020 VIN (V)VIN (V) 12325 12325 Figure 17. Output Voltage (VOUT) vs. Input Voltage (VIN) at Various Loads, Figure 20. Ground Current vs. Input Voltage (VIN) at Different Loads, VOUT = 1.2 V VOUT = 1.2 V 100ILOAD = 100mA9ILOAD = 200mA–20ILOAD = 400mA8ILOAD = 600mAA)7–40(m T N6) B–60REd5( R–80ND CUR4PSRU O R3–100GILOAD = 1mA2ILOAD = 10mAILOAD = 100mAI–1201LOAD = 200mAILOAD = 400mAILOAD = 600mA0–140–40–52585125 18 21 0 1101001k10k100k1M10M 0 JUNCTION TEMPERATURE (°C) 325- FREQUENCY (Hz) 325- 12 12 Figure 18. Ground Current vs. Junction Temperature (TJ) at Various Loads, Figure 21. Power Supply Rejection Ratio (PSRR) vs. Frequency at Various VOUT = 1.2 V Loads, VOUT = 3.3 V, VIN = 4.1 V 1009–208) A–40m7( T N6)EB–60RR(d5R RCUPS–80ND4U800mVRO3–100600mVG500mV2400mV300mV–120250mV1200mV150mV0–1401101001000 022 019 1101001k10k100k1M10M 5- 25- ILOAD (mA)FREQUENCY (Hz) 123 1232 Figure 19. Ground Current vs. Load Current (ILOAD), VOUT = 1.2 V Figure 22. Power Supply Rejection Ratio (PSRR) vs. Frequency at Various Headroom Voltages, VOUT = 3.3 V, 400 mA Load Rev. C | Page 9 of 24 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) PSRR PERFORMANCE PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE