Datasheet ADP7157 (Analog Devices) - 7

Data Sheet ADP7157 TYPICAL PERFORMANCE CHARACTERISTICS
VIN = VOUT + 0.5 V or 2.3 V, whichever is greater; VEN = VIN; VOUT = 3.3 V; ILOAD = 10 mA; CIN = COUT = 10 µF; CREG = CREF = CBYP = 1 µF; TA = 25°C, unless otherwise noted.
1.0 3.35 ILOAD = 0mA I 0.9 3.34 LOAD = 10mA ILOAD = 100mA ILOAD = 600mA 0.8 3.33 ILOAD = 1200mA 0.7 3.32 0.6 3.31 A) µ 5.5V ( (V) D 0.5 5.0V 3.30 S UT 4.0V O 3.0V V I IN– 0.4 3.29 0.3 3.28 0.2 3.27 0.1 3.26 2.3V 2.5V 0 3.25 –40 –20 0 20 40 60 80 100 120 140
005
3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6
008
TEMPERATURE (°C)
12938-
VIN (V)
12938- Figure 5. Shutdown Current (IIN-SD) vs. Temperature Figure 8. Output Voltage (VOUT) vs. Input Voltage (VIN) at Various Input Voltages (VIN), VOUT =1.8 V at Various Loads, VOUT = 3.3 V
3.35 14 ILOAD = 0mA I I LOAD = 0mA 3.34 LOAD = 10mA 13 I I LOAD = 10mA LOAD = 100mA I I 12 LOAD = 100mA LOAD = 600mA I 3.33 I LOAD = 600mA LOAD = 1200mA 11 ILOAD = 1200mA 3.32 10 9 3.31 8 (V) mA) 3.30 UT ( 7 OV ND 3.29 6 I G 5 3.28 4 3.27 3 2 3.26 1 3.25 0 –40 –20 0 20 40 60 80 100 120 140
006
–40 –20 0 20 40 60 80 100 120 140
009
TEMPERATURE (°C)
12938-
TEMPERATURE (°C)
12938- Figure 6. Output Voltage (VOUT) vs. Temperature Figure 9. Ground Current (IGND) vs. Temperature at Various Loads, VOUT = 3.3 V at Various Loads, VOUT = 3.3 V
3.35 14 3.34 13 12 3.33 11 3.32 10 9 3.31 8 (V) mA) 3.30 UT ( 7 OV ND 3.29 6 I G 5 3.28 4 3.27 3 2 3.26 1 3.25 0 0.1m 1m 10m 100m 1 10
007
0.1m 1m 10m 100m 1 10
010
ILOAD (A)
12938-
ILOAD (A)
12938- Figure 7. Output Voltage (VOUT) vs. Load Current (ILOAD), VOUT = 3.3 V Figure 10. Ground Current (IGND) vs. Load Current (ILOAD), VOUT = 3.3 V Rev. B | Page 7 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT 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 SHUTDOWN THERMAL CONSIDERATIONS Thermal Characterization Parameter (ΨJB) PSRR PERFORMANCE PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE